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</style></head><body><div class="book"><div class="titlepage"><div><div><h1 class="title"><a id="x11protocol"></a>X Window System Protocol</h1></div><div><h2 class="subtitle">X Consortium Standard</h2></div><div><div class="author"><h3 class="author"><span class="firstname">Robert</span> <span class="othername">W.</span> <span class="surname">Scheifler</span></h3><div class="affiliation"><span class="orgname">X Consortium, Inc.<br /></span></div></div></div><div><p class="releaseinfo">X Version 11, Release 7.6</p></div><div><p class="releaseinfo">Version 1.0</p></div><div><p class="copyright">Copyright © 1986, 1987, 1988, 1994, 2004 The Open Group</p></div><div><div class="legalnotice"><a id="idp23521788"></a><p>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
</p><p>
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
</p><p>
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
</p><p>
Except as contained in this notice, the name of the Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from the Open Group.
</p><p>X Window System is a trademark of The Open Group.</p></div></div></div><hr /></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="preface"><a href="#acknowledgements">Acknowledgements</a></span></dt><dt><span class="chapter"><a href="#Protocol_Formats">1. Protocol Formats</a></span></dt><dd><dl><dt><span class="section"><a href="#request_format">Request Format</a></span></dt><dt><span class="section"><a href="#reply_format">Reply Format</a></span></dt><dt><span class="section"><a href="#error_format">Error Format</a></span></dt><dt><span class="section"><a href="#event_format">Event Format</a></span></dt></dl></dd><dt><span class="chapter"><a href="#Syntactic_Conventions">2. Syntactic Conventions</a></span></dt><dt><span class="chapter"><a href="#Common_Types">3. Common Types</a></span></dt><dt><span class="chapter"><a href="#Errors">4. Errors</a></span></dt><dt><span class="chapter"><a href="#Keyboards">5. Keyboards</a></span></dt><dt><span class="chapter"><a href="#Pointers">6. Pointers</a></span></dt><dt><span class="chapter"><a href="#Predefined_Atoms">7. Predefined Atoms</a></span></dt><dt><span class="chapter"><a href="#Connection_Setup">8. Connection Setup</a></span></dt><dd><dl><dt><span class="section"><a href="#connection_initiation">Connection Initiation</a></span></dt><dt><span class="section"><a href="#server_response">Server Response</a></span></dt><dt><span class="section"><a href="#server_information">Server Information</a></span></dt><dt><span class="section"><a href="#screen_information">Screen Information</a></span></dt><dt><span class="section"><a href="#visual_information">Visual Information</a></span></dt></dl></dd><dt><span class="chapter"><a href="#Requests">9. Requests</a></span></dt><dd><dl><dt><span class="section"><a href="#requests:CreateWindow">CreateWindow</a></span></dt><dt><span class="section"><a href="#requests:ChangeWindowAttributes">ChangeWindowAttributes</a></span></dt><dt><span class="section"><a href="#requests:GetWindowAttributes">GetWindowAttributes</a></span></dt><dt><span class="section"><a href="#requests:DestroyWindow">DestroyWindow</a></span></dt><dt><span class="section"><a href="#requests:DestroySubwindows">DestroySubwindows</a></span></dt><dt><span class="section"><a href="#requests:ChangeSaveSet">ChangeSaveSet</a></span></dt><dt><span class="section"><a href="#requests:ReparentWindow">ReparentWindow</a></span></dt><dt><span class="section"><a href="#requests:MapWindow">MapWindow</a></span></dt><dt><span class="section"><a href="#requests:MapSubwindows">MapSubwindows</a></span></dt><dt><span class="section"><a href="#requests:UnmapWindow">UnmapWindow</a></span></dt><dt><span class="section"><a href="#requests:UnmapSubwindows">UnmapSubwindows</a></span></dt><dt><span class="section"><a href="#requests:ConfigureWindow">ConfigureWindow</a></span></dt><dt><span class="section"><a href="#requests:CirculateWindow">CirculateWindow</a></span></dt><dt><span class="section"><a href="#requests:GetGeometry">GetGeometry</a></span></dt><dt><span class="section"><a href="#requests:QueryTree">QueryTree</a></span></dt><dt><span class="section"><a href="#requests:InternAtom">InternAtom</a></span></dt><dt><span class="section"><a href="#requests:GetAtomName">GetAtomName</a></span></dt><dt><span class="section"><a href="#requests:ChangeProperty">ChangeProperty</a></span></dt><dt><span class="section"><a href="#requests:DeleteProperty">DeleteProperty</a></span></dt><dt><span class="section"><a href="#requests:GetProperty">GetProperty</a></span></dt><dt><span class="section"><a href="#requests:RotateProperties">RotateProperties</a></span></dt><dt><span class="section"><a href="#requests:ListProperties">ListProperties</a></span></dt><dt><span class="section"><a href="#requests:SetSelectionOwner">SetSelectionOwner</a></span></dt><dt><span class="section"><a href="#requests:GetSelectionOwner">GetSelectionOwner</a></span></dt><dt><span class="section"><a href="#requests:ConvertSelection">ConvertSelection</a></span></dt><dt><span class="section"><a href="#requests:SendEvent">SendEvent</a></span></dt><dt><span class="section"><a href="#requests:GrabPointer">GrabPointer</a></span></dt><dt><span class="section"><a href="#requests:UngrabPointer">UngrabPointer</a></span></dt><dt><span class="section"><a href="#requests:GrabButton">GrabButton</a></span></dt><dt><span class="section"><a href="#requests:UngrabButton">UngrabButton</a></span></dt><dt><span class="section"><a href="#requests:ChangeActivePointerGrab">ChangeActivePointerGrab</a></span></dt><dt><span class="section"><a href="#requests:GrabKeyboard">GrabKeyboard</a></span></dt><dt><span class="section"><a href="#requests:UngrabKeyboard">UngrabKeyboard</a></span></dt><dt><span class="section"><a href="#requests:GrabKey">GrabKey</a></span></dt><dt><span class="section"><a href="#requests:UngrabKey">UngrabKey</a></span></dt><dt><span class="section"><a href="#requests:AllowEvents">AllowEvents</a></span></dt><dt><span class="section"><a href="#requests:GrabServer">GrabServer</a></span></dt><dt><span class="section"><a href="#requests:UngrabServer">UngrabServer</a></span></dt><dt><span class="section"><a href="#requests:QueryPointer">QueryPointer</a></span></dt><dt><span class="section"><a href="#requests:GetMotionEvents">GetMotionEvents</a></span></dt><dt><span class="section"><a href="#requests:TranslateCoordinates">TranslateCoordinates</a></span></dt><dt><span class="section"><a href="#requests:WarpPointer">WarpPointer</a></span></dt><dt><span class="section"><a href="#requests:SetInputFocus">SetInputFocus</a></span></dt><dt><span class="section"><a href="#requests:GetInputFocus">GetInputFocus</a></span></dt><dt><span class="section"><a href="#requests:QueryKeymap">QueryKeymap</a></span></dt><dt><span class="section"><a href="#requests:OpenFont">OpenFont</a></span></dt><dt><span class="section"><a href="#requests:CloseFont">CloseFont</a></span></dt><dt><span class="section"><a href="#requests:QueryFont">QueryFont</a></span></dt><dt><span class="section"><a href="#requests:QueryTextExtents">QueryTextExtents</a></span></dt><dt><span class="section"><a href="#requests:ListFonts">ListFonts</a></span></dt><dt><span class="section"><a href="#requests:ListFontsWithInfo">ListFontsWithInfo</a></span></dt><dt><span class="section"><a href="#requests:SetFontPath">SetFontPath</a></span></dt><dt><span class="section"><a href="#requests:GetFontPath">GetFontPath</a></span></dt><dt><span class="section"><a href="#requests:CreatePixmap">CreatePixmap</a></span></dt><dt><span class="section"><a href="#requests:FreePixmap">FreePixmap</a></span></dt><dt><span class="section"><a href="#requests:CreateGC">CreateGC</a></span></dt><dt><span class="section"><a href="#requests:ChangeGC">ChangeGC</a></span></dt><dt><span class="section"><a href="#requests:CopyGC">CopyGC</a></span></dt><dt><span class="section"><a href="#requests:SetDashes">SetDashes</a></span></dt><dt><span class="section"><a href="#requests:SetClipRectangles">SetClipRectangles</a></span></dt><dt><span class="section"><a href="#requests:FreeGC">FreeGC</a></span></dt><dt><span class="section"><a href="#requests:ClearArea">ClearArea</a></span></dt><dt><span class="section"><a href="#requests:CopyArea">CopyArea</a></span></dt><dt><span class="section"><a href="#requests:CopyPlane">CopyPlane</a></span></dt><dt><span class="section"><a href="#requests:PolyPoint">PolyPoint</a></span></dt><dt><span class="section"><a href="#requests:PolyLine">PolyLine</a></span></dt><dt><span class="section"><a href="#requests:PolySegment">PolySegment</a></span></dt><dt><span class="section"><a href="#requests:PolyRectangle">PolyRectangle</a></span></dt><dt><span class="section"><a href="#requests:PolyArc">PolyArc</a></span></dt><dt><span class="section"><a href="#requests:FillPoly">FillPoly</a></span></dt><dt><span class="section"><a href="#requests:PolyFillRectangle">PolyFillRectangle</a></span></dt><dt><span class="section"><a href="#requests:PolyFillArc">PolyFillArc</a></span></dt><dt><span class="section"><a href="#requests:PutImage">PutImage</a></span></dt><dt><span class="section"><a href="#requests:GetImage">GetImage</a></span></dt><dt><span class="section"><a href="#requests:PolyText8">PolyText8</a></span></dt><dt><span class="section"><a href="#requests:PolyText16">PolyText16</a></span></dt><dt><span class="section"><a href="#requests:ImageText8">ImageText8</a></span></dt><dt><span class="section"><a href="#requests:ImageText16">ImageText16</a></span></dt><dt><span class="section"><a href="#requests:CreateColormap">CreateColormap</a></span></dt><dt><span class="section"><a href="#requests:FreeColormap">FreeColormap</a></span></dt><dt><span class="section"><a href="#requests:CopyColormapAndFree">CopyColormapAndFree</a></span></dt><dt><span class="section"><a href="#requests:InstallColormap">InstallColormap</a></span></dt><dt><span class="section"><a href="#requests:UninstallColormap">UninstallColormap</a></span></dt><dt><span class="section"><a href="#requests:ListInstalledColormaps">ListInstalledColormaps</a></span></dt><dt><span class="section"><a href="#requests:AllocColor">AllocColor</a></span></dt><dt><span class="section"><a href="#requests:AllocNamedColor">AllocNamedColor</a></span></dt><dt><span class="section"><a href="#requests:AllocColorCells">AllocColorCells</a></span></dt><dt><span class="section"><a href="#requests:AllocColorPlanes">AllocColorPlanes</a></span></dt><dt><span class="section"><a href="#requests:FreeColors">FreeColors</a></span></dt><dt><span class="section"><a href="#requests:StoreColors">StoreColors</a></span></dt><dt><span class="section"><a href="#requests:StoreNamedColor">StoreNamedColor</a></span></dt><dt><span class="section"><a href="#requests:QueryColors">QueryColors</a></span></dt><dt><span class="section"><a href="#requests:LookupColor">LookupColor</a></span></dt><dt><span class="section"><a href="#requests:CreateCursor">CreateCursor</a></span></dt><dt><span class="section"><a href="#requests:CreateGlyphCursor">CreateGlyphCursor</a></span></dt><dt><span class="section"><a href="#requests:FreeCursor">FreeCursor</a></span></dt><dt><span class="section"><a href="#requests:RecolorCursor">RecolorCursor</a></span></dt><dt><span class="section"><a href="#requests:QueryBestSize">QueryBestSize</a></span></dt><dt><span class="section"><a href="#requests:QueryExtension">QueryExtension</a></span></dt><dt><span class="section"><a href="#requests:ListExtensions">ListExtensions</a></span></dt><dt><span class="section"><a href="#requests:SetModifierMapping">SetModifierMapping</a></span></dt><dt><span class="section"><a href="#requests:GetModifierMapping">GetModifierMapping</a></span></dt><dt><span class="section"><a href="#requests:ChangeKeyboardMapping">ChangeKeyboardMapping</a></span></dt><dt><span class="section"><a href="#requests:GetKeyboardMapping">GetKeyboardMapping</a></span></dt><dt><span class="section"><a href="#requests:ChangeKeyboardControl">ChangeKeyboardControl</a></span></dt><dt><span class="section"><a href="#requests:GetKeyboardControl">GetKeyboardControl</a></span></dt><dt><span class="section"><a href="#requests:Bell">Bell</a></span></dt><dt><span class="section"><a href="#requests:SetPointerMapping">SetPointerMapping</a></span></dt><dt><span class="section"><a href="#requests:GetPointerMapping">GetPointerMapping</a></span></dt><dt><span class="section"><a href="#requests:ChangePointerControl">ChangePointerControl</a></span></dt><dt><span class="section"><a href="#requests:GetPointerControl">GetPointerControl</a></span></dt><dt><span class="section"><a href="#requests:SetScreenSaver">SetScreenSaver</a></span></dt><dt><span class="section"><a href="#requests:GetScreenSaver">GetScreenSaver</a></span></dt><dt><span class="section"><a href="#requests:ForceScreenSaver">ForceScreenSaver</a></span></dt><dt><span class="section"><a href="#requests:ChangeHosts">ChangeHosts</a></span></dt><dt><span class="section"><a href="#requests:ListHosts">ListHosts</a></span></dt><dt><span class="section"><a href="#requests:SetAccessControl">SetAccessControl</a></span></dt><dt><span class="section"><a href="#requests:SetCloseDownMode">SetCloseDownMode</a></span></dt><dt><span class="section"><a href="#requests:KillClient">KillClient</a></span></dt><dt><span class="section"><a href="#requests:NoOperation">NoOperation</a></span></dt></dl></dd><dt><span class="chapter"><a href="#Connection_Close">10. Connection Close</a></span></dt><dt><span class="chapter"><a href="#Events">11. Events</a></span></dt><dd><dl><dt><span class="section"><a href="#events:input">Input Device events</a></span></dt><dt><span class="section"><a href="#events:pointer_window">Pointer Window events</a></span></dt><dt><span class="section"><a href="#events:input_focus">Input Focus events</a></span></dt><dt><span class="section"><a href="#events:KeymapNotify">KeymapNotify</a></span></dt><dt><span class="section"><a href="#events:Expose">Expose</a></span></dt><dt><span class="section"><a href="#events:GraphicsExposure">GraphicsExposure</a></span></dt><dt><span class="section"><a href="#events:NoExposure">NoExposure</a></span></dt><dt><span class="section"><a href="#events:VisibilityNotify">VisibilityNotify</a></span></dt><dt><span class="section"><a href="#events:CreateNotify">CreateNotify</a></span></dt><dt><span class="section"><a href="#events:DestroyNotify">DestroyNotify</a></span></dt><dt><span class="section"><a href="#events:UnmapNotify">UnmapNotify</a></span></dt><dt><span class="section"><a href="#events:MapNotify">MapNotify</a></span></dt><dt><span class="section"><a href="#events:MapRequest">MapRequest</a></span></dt><dt><span class="section"><a href="#events:ReparentNotify">ReparentNotify</a></span></dt><dt><span class="section"><a href="#events:ConfigureNotify">ConfigureNotify</a></span></dt><dt><span class="section"><a href="#events:GravityNotify">GravityNotify</a></span></dt><dt><span class="section"><a href="#events:ResizeRequest">ResizeRequest</a></span></dt><dt><span class="section"><a href="#events:ConfigureRequest">ConfigureRequest</a></span></dt><dt><span class="section"><a href="#events:CirculateNotify">CirculateNotify</a></span></dt><dt><span class="section"><a href="#events:CirculateRequest">CirculateRequest</a></span></dt><dt><span class="section"><a href="#events:PropertyNotify">PropertyNotify</a></span></dt><dt><span class="section"><a href="#events:SelectionClear">SelectionClear</a></span></dt><dt><span class="section"><a href="#events:SelectionRequest">SelectionRequest</a></span></dt><dt><span class="section"><a href="#events:SelectionNotify">SelectionNotify</a></span></dt><dt><span class="section"><a href="#events:ColormapNotify">ColormapNotify</a></span></dt><dt><span class="section"><a href="#events:MappingNotify">MappingNotify</a></span></dt><dt><span class="section"><a href="#events:ClientMessage">ClientMessage</a></span></dt></dl></dd><dt><span class="chapter"><a href="#Flow_Control_and_Concurrency">12. Flow Control and Concurrency</a></span></dt><dt><span class="appendix"><a href="#keysym_encoding">A. KEYSYM Encoding</a></span></dt><dd><dl><dt><span class="sect1"><a href="#Special_KEYSYMs">Special KEYSYMs</a></span></dt><dt><span class="sect1"><a href="#Latin_1_KEYSYMs">Latin-1 KEYSYMs</a></span></dt><dt><span class="sect1"><a href="#Unicode_KEYSYMs">Unicode KEYSYMs</a></span></dt><dt><span class="sect1"><a href="#Function_KEYSYMs">Function KEYSYMs</a></span></dt><dt><span class="sect1"><a href="#Vendor_KEYSYMs">Vendor KEYSYMs</a></span></dt><dt><span class="sect1"><a href="#Legacy_KEYSYMs">Legacy KEYSYMs</a></span></dt></dl></dd><dt><span class="appendix"><a href="#protocol_encoding">B. Protocol Encoding</a></span></dt><dd><dl><dt><span class="sect1"><a href="#Syntactic_Conventions_b">Syntactic Conventions</a></span></dt><dt><span class="sect1"><a href="#Encoding::Common_Types">Common Types</a></span></dt><dt><span class="sect1"><a href="#Encoding::Errors">Errors</a></span></dt><dt><span class="sect1"><a href="#Encoding::Keyboards">Keyboards</a></span></dt><dt><span class="sect1"><a href="#Encoding::Pointers">Pointers</a></span></dt><dt><span class="sect1"><a href="#Encoding::Predefined_Atoms">Predefined Atoms</a></span></dt><dt><span class="sect1"><a href="#Encoding::Connection_Setup">Connection Setup</a></span></dt><dt><span class="sect1"><a href="#Encoding::Requests">Requests</a></span></dt><dt><span class="sect1"><a href="#Encoding::Events">Events</a></span></dt></dl></dd><dt><span class="glossary"><a href="#glossary">Glossary</a></span></dt><dt><span class="index"><a href="#index">Index</a></span></dt></dl></div><div class="preface"><div class="titlepage"><div><div><h1 class="title"><a id="acknowledgements"></a>Acknowledgements</h1></div></div></div><p>
The primary contributers to the X11 protocol are:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Dave Carver (Digital HPW)</p></li><li class="listitem"><p>Branko Gerovac (Digital HPW)</p></li><li class="listitem"><p>Jim Gettys (MIT/Project Athena, Digital)</p></li><li class="listitem"><p>Phil Karlton (Digital WSL)</p></li><li class="listitem"><p>Scott McGregor (Digital SSG)</p></li><li class="listitem"><p>Ram Rao (Digital UEG)</p></li><li class="listitem"><p>David Rosenthal (Sun)</p></li><li class="listitem"><p>Dave Winchell (Digital UEG)</p></li></ul></div><p>
The implementors of initial server who provided useful
input are:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Susan Angebranndt (Digital)</p></li><li class="listitem"><p>Raymond Drewry (Digital)</p></li><li class="listitem"><p>Todd Newman (Digital)</p></li></ul></div><p>
The invited reviewers who provided useful input are:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Andrew Cherenson (Berkeley)</p></li><li class="listitem"><p>Burns Fisher (Digital)</p></li><li class="listitem"><p>Dan Garfinkel (HP)</p></li><li class="listitem"><p>Leo Hourvitz (Next)</p></li><li class="listitem"><p>Brock Krizan (HP)</p></li><li class="listitem"><p>David Laidlaw (Stellar)</p></li><li class="listitem"><p>Dave Mellinger (Interleaf)</p></li><li class="listitem"><p>Ron Newman (MIT)</p></li><li class="listitem"><p>John Ousterhout (Berkeley)</p></li><li class="listitem"><p>Andrew Palay (ITC CMU)</p></li><li class="listitem"><p>Ralph Swick (MIT)</p></li><li class="listitem"><p>Craig Taylor (Sun)</p></li><li class="listitem"><p>Jeffery Vroom (Stellar)</p></li></ul></div><p>
Thanks go to Al Mento of Digital's UEG Documentation Group for
formatting this document.
</p><p>
This document does not attempt to provide the rationale or pragmatics required
to fully understand the protocol or to place it in perspective within a
complete system.
</p><p>
The protocol contains many management mechanisms that are not intended for
normal applications.
Not all mechanisms are needed to build a particular user interface.
It is important to keep in mind that the protocol is intended to
provide mechanism, not policy.
</p><p>
Robert W. Scheifler
</p><p>
X Consortium, Inc.
</p></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="Protocol_Formats"></a>Chapter 1. Protocol Formats</h1></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="#request_format">Request Format</a></span></dt><dt><span class="section"><a href="#reply_format">Reply Format</a></span></dt><dt><span class="section"><a href="#error_format">Error Format</a></span></dt><dt><span class="section"><a href="#event_format">Event Format</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="request_format"></a>Request Format</h2></div></div></div><a id="idp24515484" class="indexterm"></a><p>
Every request contains an 8-bit <em class="firstterm"><a id="major_opcode"></a>major opcode</em>
<a id="idp24516740" class="indexterm"></a>
and a 16-bit <em class="firstterm"><a id="request_length"></a>length field</em>
<a id="idp24517836" class="indexterm"></a>
expressed in units of four bytes.
Every request consists of four bytes of a header
(containing the major opcode, the length field, and a data byte)
followed by zero or more additional bytes of data.
The length field defines the total length of the request, including the header.
The length field in a request must equal the minimum length required to contain
the request.
If the specified length is smaller or larger than the required length,
an error is generated.
Unused bytes in a request are not required to be zero.
Major opcodes 128 through 255 are reserved for 
<em class="firstterm"><a id="extension"></a>extensions</em>.
<a id="idp24519468" class="indexterm"></a>
Extensions are intended to contain multiple requests,
so extension requests typically have an additional 
<em class="firstterm"><a id="minor_opcode"></a>minor opcode</em> encoded
in the second data byte in the request header.
<a id="idp24520412" class="indexterm"></a>
However, the placement and interpretation of this minor opcode and of all
other fields in extension requests are not defined by the core protocol.
Every request on a given connection is implicitly assigned a
<em class="firstterm"><a id="sequence_number"></a>sequence number</em>,
<a id="idp24521700" class="indexterm"></a>
starting with one, that is used in replies, errors, and events.
    </p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="reply_format"></a>Reply Format</h2></div></div></div><a id="idp24523020" class="indexterm"></a><p>
Every <em class="firstterm">reply</em> contains a 32-bit length field
expressed in units of four bytes.
Every reply consists of 32 bytes followed by zero or more additional bytes of
data, as specified in the length field.
Unused bytes within a reply are not guaranteed to be zero.
Every reply also contains the least significant 16 bits of the sequence number
of the corresponding request.
    </p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="error_format"></a>Error Format</h2></div></div></div><a id="idp24525132" class="indexterm"></a><p>
Error reports are 32 bytes long.
Every error includes an 8-bit error code.
<span class="phrase"><a id="errors:extensions"></a>
Error codes 128 through 255 are reserved for extensions.
</span>
<a id="idp24526484" class="indexterm"></a>
<a id="idp24527196" class="indexterm"></a>
Every error also includes the major and minor opcodes of the failed request
and the least significant 16 bits of the sequence number of the request.
For the following errors (see <a class="link" href="#Errors" title="Chapter 4. Errors">section 4</a>),
the failing resource ID is also returned:
<span class="bold"><strong>Colormap</strong></span>,
<span class="bold"><strong>Cursor</strong></span>,
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>Font</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>IDChoice</strong></span>,
<span class="bold"><strong>Pixmap</strong></span>
and
<span class="bold"><strong>Window</strong></span>.
For
<span class="bold"><strong>Atom</strong></span>
errors, the failing atom is returned.
For
<span class="bold"><strong>Value</strong></span>
errors, the failing value is returned.
Other core errors return no additional data.
Unused bytes within an error are not guaranteed to be zero.
    </p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="event_format"></a>Event Format</h2></div></div></div><a id="idp21447204" class="indexterm"></a><p>
<em class="firstterm">Events</em> are 32 bytes long.
Unused bytes within an event are not guaranteed to be zero.
Every event contains an 8-bit type code.
The most significant bit in this code is set if the event was generated from a
<a class="link" href="#requests:SendEvent" title="SendEvent"><span class="bold"><strong>SendEvent</strong></span></a>
request.
<span class="phrase"><a id="events:extensions"></a>
Event codes 64 through 127 are reserved for extensions, although the core
protocol does not define a mechanism for selecting interest in such events.
</span>
<a id="idp21449556" class="indexterm"></a>
<a id="idp21450268" class="indexterm"></a>
Every core event (with the exception of
<a class="link" href="#events:KeymapNotify" title="KeymapNotify"><span class="bold"><strong>KeymapNotify</strong></span></a>)
also contains the least significant 16 bits of the sequence number of the last
request issued by the client that was (or is currently being) processed by
the server.
    </p></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="Syntactic_Conventions"></a>Chapter 2. Syntactic Conventions</h1></div></div></div><p>

The rest of this document uses the following syntactic conventions.
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
The syntax {...} encloses a set of alternatives.
    </p></li><li class="listitem"><p>
The syntax [...] encloses a set of structure components.
    </p></li><li class="listitem"><p>
In general, TYPEs are in uppercase and
<span class="bold"><strong>AlternativeValues</strong></span>
are capitalized.
    </p></li><li class="listitem"><p>
Requests in <a class="link" href="#Requests" title="Chapter 9. Requests">section 9</a> are described
in the following format:
</p><pre class="literallayout">
<span class="bold"><strong>RequestName</strong></span>
     <span class="emphasis"><em>arg1</em></span>: type1
     ...
     <span class="emphasis"><em>argN</em></span>: typeN
   ▶
     result1: type1
     ...
     resultM: typeM

     Errors: kind1, ..., kindK

     Description.
</pre><p>
    </p><p>
If no ▶ is present in the description,
then the request has no reply (it is asynchronous),
although errors may still be reported.
If ▶+ is used,
then one or more replies can be generated for a single request.
    </p></li><li class="listitem"><p>
Events in <a class="link" href="#Events" title="Chapter 11. Events">section 11</a> are described
in the following format:
</p><pre class="literallayout">
<span class="bold"><strong>EventName</strong></span>
     <span class="emphasis"><em>value1</em></span>: type1
     ...
     <span class="emphasis"><em>valueN</em></span>: typeN

     Description.
</pre><p>
    </p></li></ul></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="Common_Types"></a>Chapter 3. Common Types</h1></div></div></div><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Name</th><th align="left">Value</th></tr></thead><tbody><tr><td align="left"><a id="types:LISTofFOO"></a>LISTofFOO<a id="idp26625756" class="indexterm"></a></td><td align="left">

A type name of the form LISTofFOO means a counted list of elements of type
FOO.
The size of the length field may vary (it is not necessarily the same
size as a FOO), and in some cases, it may be implicit.
It is fully specified in Appendix B.
Except where explicitly noted,
zero-length lists are legal.
      </td></tr><tr><td align="left"><p><a id="types:BITMASK"></a>BITMASK<a id="idp26627572" class="indexterm"></a></p><p><a id="types:LISTofVALUE"></a>LISTofVALUE<a id="idp26628492" class="indexterm"></a></p></td><td align="left">
<p>
The types BITMASK and LISTofVALUE are somewhat special.
Various requests contain arguments of the form:
</p>
<p>
<span class="emphasis"><em>value-mask</em></span>: BITMASK
</p>
<p>
<span class="emphasis"><em>value-list</em></span>: LISTofVALUE
</p>
<p>
These are used to allow the client to specify a subset of a heterogeneous
collection of optional arguments.
The value-mask specifies which arguments are to be provided;
each such argument is assigned a unique bit position.
The representation of the BITMASK will typically contain more bits than
there are defined arguments.
The unused bits in the value-mask must be zero (or the server generates a
<span class="bold"><strong>Value</strong></span>
error).
The value-list contains one value for each bit set to 1 in the mask,
from least significant to most significant bit in the mask.
Each value is represented with four bytes,
but the actual value occupies only the least significant bytes as required.
The values of the unused bytes do not matter.
</p>
      </td></tr><tr><td align="left"><a id="types:OR"></a>OR<a id="idp26632700" class="indexterm"></a></td><td align="left">
A type of the form "T1 or ... or Tn" means the union of the indicated types.
A single-element type is given as the element without enclosing braces.
      </td></tr><tr><td align="left"><a id="types:WINDOW"></a>WINDOW<a id="idp26634292" class="indexterm"></a></td><td align="left">32-bit value (top three bits guaranteed to be zero)</td></tr><tr><td align="left"><a id="types:PIXMAP"></a>PIXMAP<a id="idp26635780" class="indexterm"></a></td><td align="left">32-bit value (top three bits guaranteed to be zero)</td></tr><tr><td align="left"><a id="types:CURSOR"></a>CURSOR<a id="idp26637268" class="indexterm"></a></td><td align="left">32-bit value (top three bits guaranteed to be zero)</td></tr><tr><td align="left"><a id="types:FONT"></a>FONT<a id="idp26638748" class="indexterm"></a></td><td align="left">32-bit value (top three bits guaranteed to be zero)</td></tr><tr><td align="left"><a id="types:GCONTEXT"></a>GCONTEXT<a id="idp26640228" class="indexterm"></a></td><td align="left">32-bit value (top three bits guaranteed to be zero)</td></tr><tr><td align="left"><a id="types:COLORMAP"></a>COLORMAP<a id="idp26641716" class="indexterm"></a></td><td align="left">32-bit value (top three bits guaranteed to be zero)</td></tr><tr><td align="left"><a id="types:DRAWABLE"></a>DRAWABLE<a id="idp26643204" class="indexterm"></a></td><td align="left">WINDOW or PIXMAP</td></tr><tr><td align="left"><a id="types:FONTABLE"></a>FONTABLE<a id="idp26644660" class="indexterm"></a></td><td align="left">FONT or GCONTEXT</td></tr><tr><td align="left"><a id="types:ATOM"></a>ATOM<a id="idp26646108" class="indexterm"></a></td><td align="left">32-bit value (top three bits guaranteed to be zero)</td></tr><tr><td align="left"><a id="types:VISUALID"></a>VISUALID<a id="idp26647588" class="indexterm"></a></td><td align="left">32-bit value (top three bits guaranteed to be zero)</td></tr><tr><td align="left"><a id="types:VALUE"></a>VALUE<a id="idp26649068" class="indexterm"></a></td><td align="left">32-bit quantity (used only in LISTofVALUE)</td></tr><tr><td align="left"><a id="types:BYTE"></a>BYTE<a id="idp26650532" class="indexterm"></a></td><td align="left">8-bit value</td></tr><tr><td align="left"><a id="types:INT8"></a>INT8<a id="idp26651964" class="indexterm"></a></td><td align="left">8-bit signed integer</td></tr><tr><td align="left"><a id="types:INT16"></a>INT16<a id="idp26653412" class="indexterm"></a></td><td align="left">16-bit signed integer</td></tr><tr><td align="left"><a id="types:INT32"></a>INT32<a id="idp26654860" class="indexterm"></a></td><td align="left">32-bit signed integer</td></tr><tr><td align="left"><a id="types:CARD8"></a>CARD8<a id="idp26656308" class="indexterm"></a></td><td align="left">8-bit unsigned integer</td></tr><tr><td align="left"><a id="types:CARD16"></a>CARD16<a id="idp26657764" class="indexterm"></a></td><td align="left">16-bit unsigned integer</td></tr><tr><td align="left"><a id="types:CARD32"></a>CARD32<a id="idp26659228" class="indexterm"></a></td><td align="left">32-bit unsigned integer</td></tr><tr><td align="left"><a id="types:TIMESTAMP"></a>TIMESTAMP<a id="idp26660692" class="indexterm"></a></td><td align="left">CARD32</td></tr><tr><td align="left"><a id="types:BITGRAVITY"></a>BITGRAVITY<a id="idp26662140" class="indexterm"></a></td><td align="left">
{ <span class="bold"><strong>Forget</strong></span>,
<span class="bold"><strong>Static</strong></span>,
<span class="bold"><strong>NorthWest</strong></span>,
<span class="bold"><strong>North</strong></span>,
<span class="bold"><strong>NorthEast</strong></span>,
<span class="bold"><strong>West</strong></span>,
<span class="bold"><strong>Center</strong></span>,
<span class="bold"><strong>East</strong></span>,
<span class="bold"><strong>SouthWest</strong></span>,
<span class="bold"><strong>South</strong></span>,
<span class="bold"><strong>SouthEast</strong></span> }
      </td></tr><tr><td align="left"><a id="types:WINGRAVITY"></a>WINGRAVITY<a id="idp26667548" class="indexterm"></a></td><td align="left">
{ <span class="bold"><strong>Unmap</strong></span>,
<span class="bold"><strong>Static</strong></span>,
<span class="bold"><strong>NorthWest</strong></span>,
<span class="bold"><strong>North</strong></span>,
<span class="bold"><strong>NorthEast</strong></span>,
<span class="bold"><strong>West</strong></span>,
<span class="bold"><strong>Center</strong></span>,
<span class="bold"><strong>East</strong></span>,
<span class="bold"><strong>SouthWest</strong></span>,
<span class="bold"><strong>South</strong></span>,
<span class="bold"><strong>SouthEast</strong></span> }
      </td></tr><tr><td align="left"><a id="types:BOOL"></a>BOOL<a id="idp26672948" class="indexterm"></a></td><td align="left">
{ <span class="bold"><strong>True</strong></span>,
<span class="bold"><strong>False</strong></span> }
      </td></tr><tr><td align="left"><a id="types:EVENT"></a>EVENT<a id="idp26675100" class="indexterm"></a></td><td align="left">
{ <span class="bold"><strong>KeyPress</strong></span>,
<span class="bold"><strong>KeyRelease</strong></span>,
<span class="bold"><strong>OwnerGrabButton</strong></span>,
<span class="bold"><strong>ButtonPress</strong></span>,
<span class="bold"><strong>ButtonRelease</strong></span>,
<span class="bold"><strong>EnterWindow</strong></span>,
<span class="bold"><strong>LeaveWindow</strong></span>,
<span class="bold"><strong>PointerMotion</strong></span>,
<span class="bold"><strong>PointerMotionHint</strong></span>,
<span class="bold"><strong>Button1Motion</strong></span>,
<span class="bold"><strong>Button2Motion</strong></span>,
<span class="bold"><strong>Button3Motion</strong></span>,
<span class="bold"><strong>Button4Motion</strong></span>,
<span class="bold"><strong>Button5Motion</strong></span>,
<span class="bold"><strong>ButtonMotion</strong></span>,
<span class="bold"><strong>Exposure</strong></span>,
<span class="bold"><strong>VisibilityChange</strong></span>,
<span class="bold"><strong>StructureNotify</strong></span>,
<span class="bold"><strong>ResizeRedirect</strong></span>,
<span class="bold"><strong>SubstructureNotify</strong></span>,
<span class="bold"><strong>SubstructureRedirect</strong></span>,
<span class="bold"><strong>FocusChange</strong></span>,
<span class="bold"><strong>PropertyChange</strong></span>,
<span class="bold"><strong>ColormapChange</strong></span>,
<span class="bold"><strong>KeymapState</strong></span> }
      </td></tr><tr><td align="left"><a id="types:POINTEREVENT"></a>POINTEREVENT<a id="idp26685692" class="indexterm"></a></td><td align="left">
{ <span class="bold"><strong>ButtonPress</strong></span>,
<span class="bold"><strong>ButtonRelease</strong></span>,
<span class="bold"><strong>EnterWindow</strong></span>,
<span class="bold"><strong>LeaveWindow</strong></span>,
<span class="bold"><strong>PointerMotion</strong></span>,
<span class="bold"><strong>PointerMotionHint</strong></span>,
<span class="bold"><strong>Button1Motion</strong></span>,
<span class="bold"><strong>Button2Motion</strong></span>,
<span class="bold"><strong>Button3Motion</strong></span>,
<span class="bold"><strong>Button4Motion</strong></span>,
<span class="bold"><strong>Button5Motion</strong></span>,
<span class="bold"><strong>ButtonMotion</strong></span>,
<span class="bold"><strong>KeymapState</strong></span> }
      </td></tr><tr><td align="left"><a id="types:DEVICEEVENT"></a>DEVICEEVENT<a id="idp26691900" class="indexterm"></a></td><td align="left">
{ <span class="bold"><strong>KeyPress</strong></span>,
<span class="bold"><strong>KeyRelease</strong></span>,
<span class="bold"><strong>ButtonPress</strong></span>,
<span class="bold"><strong>ButtonRelease</strong></span>,
<span class="bold"><strong>PointerMotion</strong></span>,
<span class="bold"><strong>Button1Motion</strong></span>,
<span class="bold"><strong>Button2Motion</strong></span>,
<span class="bold"><strong>Button3Motion</strong></span>,
<span class="bold"><strong>Button4Motion</strong></span>,
<span class="bold"><strong>Button5Motion</strong></span>,
<span class="bold"><strong>ButtonMotion</strong></span> }
      </td></tr><tr><td align="left"><a id="types:KEYSYM"></a>KEYSYM<a id="idp26697372" class="indexterm"></a></td><td align="left">32-bit value (top three bits guaranteed to be zero)</td></tr><tr><td align="left"><a id="types:KEYCODE"></a>KEYCODE<a id="idp26698860" class="indexterm"></a></td><td align="left">CARD8</td></tr><tr><td align="left"><a id="types:BUTTON"></a>BUTTON<a id="idp26700308" class="indexterm"></a></td><td align="left">CARD8</td></tr><tr><td align="left"><a id="types:KEYMASK"></a>KEYMASK<a id="idp26701756" class="indexterm"></a></td><td align="left">
{ <span class="bold"><strong>Shift</strong></span>,
<span class="bold"><strong>Lock</strong></span>,
<span class="bold"><strong>Control</strong></span>,
<span class="bold"><strong>Mod1</strong></span>,
<span class="bold"><strong>Mod2</strong></span>,
<span class="bold"><strong>Mod3</strong></span>,
<span class="bold"><strong>Mod4</strong></span>,
<span class="bold"><strong>Mod5</strong></span> }
      </td></tr><tr><td align="left"><a id="types:BUTMASK"></a>BUTMASK<a id="idp26706084" class="indexterm"></a></td><td align="left">
{ <span class="bold"><strong>Button1</strong></span>,
<span class="bold"><strong>Button2</strong></span>,
<span class="bold"><strong>Button3</strong></span>,
<span class="bold"><strong>Button4</strong></span>,
<span class="bold"><strong>Button5</strong></span> }
      </td></tr><tr><td align="left"><a id="types:KEYBUTMASK"></a>KEYBUTMASK<a id="idp26709332" class="indexterm"></a></td><td align="left">KEYMASK or BUTMASK</td></tr><tr><td align="left"><a id="types:STRING8"></a>STRING8<a id="idp26710788" class="indexterm"></a></td><td align="left">LISTofCARD8</td></tr><tr><td align="left"><a id="types:STRING16"></a>STRING16<a id="idp26712236" class="indexterm"></a></td><td align="left">LISTofCHAR2B</td></tr><tr><td align="left"><a id="types:CHAR2B"></a>CHAR2B<a id="idp26713692" class="indexterm"></a></td><td align="left">[byte1, byte2: CARD8]</td></tr><tr><td align="left"><a id="types:POINT"></a>POINT<a id="idp26715148" class="indexterm"></a></td><td align="left">[x, y: INT16]</td></tr><tr><td align="left"><a id="types:RECTANGLE"></a>RECTANGLE<a id="idp26716596" class="indexterm"></a></td><td align="left">
<p>[x, y: INT16,</p>
<p>width, height: CARD16]</p>
      </td></tr><tr><td align="left"><a id="types:ARC"></a>ARC<a id="idp26718508" class="indexterm"></a></td><td align="left">
<p>[x, y: INT16,</p>
<p>width, height: CARD16,</p>
<p>angle1, angle2: INT16]</p>
      </td></tr><tr><td align="left"><a id="types:HOST"></a>HOST<a id="idp26720652" class="indexterm"></a></td><td align="left">
<p>
[family:
{ <span class="bold"><strong>Internet</strong></span>,
<span class="bold"><strong>InternetV6</strong></span>,
<span class="bold"><strong>ServerInterpreted</strong></span>,
<span class="bold"><strong>DECnet</strong></span>,
<span class="bold"><strong>Chaos</strong></span> }
</p>
<p>address: LISTofBYTE]</p>
      </td></tr></tbody></table></div><p>
The [x,y] coordinates of a RECTANGLE specify the upper-left corner.
</p><p>
The primary interpretation of large characters in a STRING16 is that they
are composed of two bytes used to index a two-dimensional matrix,
hence, the use of CHAR2B rather than CARD16.
This corresponds to the JIS/ISO method of indexing 2-byte characters.
It is expected that most large fonts will be defined with 2-byte
matrix indexing.
For large fonts constructed with linear indexing,
a CHAR2B can be interpreted as a 16-bit number by treating byte1 as
the most significant byte.
This means that clients should always transmit such
16-bit character values most significant byte first, as the server will never
byte-swap CHAR2B quantities.
</p><p>
The length, format, and interpretation of a HOST address are specific to the
family (see
<a class="link" href="#requests:ChangeHosts" title="ChangeHosts"><span class="bold"><strong>ChangeHosts</strong></span></a>
request).
</p></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="Errors"></a>Chapter 4. Errors</h1></div></div></div><p>

In general, when a request terminates with an error,
the request has no side effects (that is, there is no partial execution).
The only requests for which this is not true are
<a class="link" href="#requests:ChangeWindowAttributes" title="ChangeWindowAttributes"><span class="bold"><strong>ChangeWindowAttributes</strong></span></a>,
<a class="link" href="#requests:ChangeGC" title="ChangeGC"><span class="bold"><strong>ChangeGC</strong></span></a>,
<a class="link" href="#requests:PolyText8" title="PolyText8"><span class="bold"><strong>PolyText8</strong></span></a>,
<a class="link" href="#requests:PolyText16" title="PolyText16"><span class="bold"><strong>PolyText16</strong></span></a>,
<a class="link" href="#requests:FreeColors" title="FreeColors"><span class="bold"><strong>FreeColors</strong></span></a>,
<a class="link" href="#requests:StoreColors" title="StoreColors"><span class="bold"><strong>StoreColors</strong></span></a>
and
<a class="link" href="#requests:ChangeKeyboardControl" title="ChangeKeyboardControl"><span class="bold"><strong>ChangeKeyboardControl</strong></span></a>.
</p><p>
The following error codes result from various requests as follows:
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Error</th><th align="left">Description</th></tr></thead><tbody><tr><td align="left"><a id="errors:Access"></a><span class="bold"><strong>Access</strong></span><a id="idp26735692" class="indexterm"></a></td><td align="left">
An attempt is made to grab a key/button combination already grabbed by another
client.
An attempt is made to free a colormap entry not allocated by the client
or to free an entry in a colormap that was created with all entries writable.
An attempt is made to store into a read-only or an unallocated colormap entry.
An attempt is made to modify the access control list from other than the local
host (or otherwise authorized client).
An attempt is made to select an event type that only one client can
select at a time when another client has already selected it.
      </td></tr><tr><td align="left"><a id="errors:Alloc"></a><span class="bold"><strong>Alloc</strong></span><a id="idp26737900" class="indexterm"></a></td><td align="left">
The server failed to allocate the requested resource.
Note that the explicit listing of
<span class="bold"><strong>Alloc</strong></span>
errors in request only covers allocation errors at a very coarse level
and is not intended to cover all cases
of a server running out of allocation space in the middle of service.
The semantics when a server runs out of allocation space are left unspecified,
but a server may generate an
<span class="bold"><strong>Alloc</strong></span>
error on any request for this reason,
and clients should be prepared to receive such errors and handle
or discard them.
      </td></tr><tr><td align="left"><a id="errors:Atom"></a><span class="bold"><strong>Atom</strong></span><a id="idp26740740" class="indexterm"></a></td><td align="left">
A value for an ATOM argument does not name a defined ATOM.
      </td></tr><tr><td align="left"><a id="errors:Colormap"></a><span class="bold"><strong>Colormap</strong></span><a id="idp26742436" class="indexterm"></a></td><td align="left">
A value for a COLORMAP argument does not name a defined COLORMAP.
      </td></tr><tr><td align="left"><a id="errors:Cursor"></a><span class="bold"><strong>Cursor</strong></span><a id="idp26744148" class="indexterm"></a></td><td align="left">
A value for a CURSOR argument does not name a defined CURSOR.
      </td></tr><tr><td align="left"><a id="errors:Drawable"></a><span class="bold"><strong>Drawable</strong></span><a id="idp26745860" class="indexterm"></a></td><td align="left">
A value for a DRAWABLE argument does not name a defined WINDOW
or PIXMAP.
      </td></tr><tr><td align="left"><a id="errors:Font"></a><span class="bold"><strong>Font</strong></span><a id="idp26747572" class="indexterm"></a></td><td align="left">
A value for a FONT argument does not name a defined FONT.
A value for a FONTABLE argument does not name a defined FONT or a
defined GCONTEXT.
      </td></tr><tr><td align="left"><a id="errors:GContext"></a><span class="bold"><strong>GContext</strong></span><a id="idp26749356" class="indexterm"></a></td><td align="left">
A value for a GCONTEXT argument does not name a defined GCONTEXT.
      </td></tr><tr><td align="left"><a id="errors:IDChoice"></a><span class="bold"><strong>IDChoice</strong></span><a id="idp26751068" class="indexterm"></a></td><td align="left">
The value chosen for a resource identifier either is not included
in the range assigned to the client or is already in use.
      </td></tr><tr><td align="left"><a id="errors:Implementation"></a><span class="bold"><strong>Implementation</strong></span><a id="idp26752852" class="indexterm"></a></td><td align="left">
The server does not implement some aspect of the request.
A server that generates this error for a core request is deficient.
As such, this error is not listed for any of the requests,
but clients should be prepared to receive such errors
and handle or discard them.
      </td></tr><tr><td align="left"><a id="errors:Length"></a><span class="bold"><strong>Length</strong></span><a id="idp26754780" class="indexterm"></a></td><td align="left">
The length of a request is shorter or longer than that required
to minimally contain the arguments.
The length of a request exceeds the maximum length accepted by the
server.
      </td></tr><tr><td align="left"><a id="errors:Match"></a><span class="bold"><strong>Match</strong></span><a id="idp26756604" class="indexterm"></a></td><td align="left">
An
<span class="bold"><strong>InputOnly</strong></span>
window is used as a DRAWABLE.
In a graphics request, the GCONTEXT argument does not have the same
root and depth as the destination DRAWABLE argument.
Some argument (or pair of arguments) has the correct type and range,
but it fails to match in some other way required by the request.
      </td></tr><tr><td align="left"><a id="errors:Name"></a><span class="bold"><strong>Name</strong></span><a id="idp26758892" class="indexterm"></a></td><td align="left">
A font or color of the specified name does not exist.
      </td></tr><tr><td align="left"><a id="errors:Pixmap"></a><span class="bold"><strong>Pixmap</strong></span><a id="idp26760588" class="indexterm"></a></td><td align="left">
A value for a PIXMAP argument does not name a defined PIXMAP.
      </td></tr><tr><td align="left"><a id="errors:Request"></a><span class="bold"><strong>Request</strong></span><a id="idp26762300" class="indexterm"></a></td><td align="left">
The major or minor opcode does not specify a valid request.
      </td></tr><tr><td align="left"><a id="errors:Value"></a><span class="bold"><strong>Value</strong></span><a id="idp26764004" class="indexterm"></a></td><td align="left">
Some numeric value falls outside the range of values accepted by the request.
Unless a specific range is specified for an argument,
the full range defined by the argument's type is accepted.
Any argument defined as a set of alternatives typically can generate
this error (due to the encoding).
      </td></tr><tr><td align="left"><a id="errors:Window"></a><span class="bold"><strong>Window</strong></span><a id="idp26765948" class="indexterm"></a></td><td align="left">
A value for a WINDOW argument does not name a defined WINDOW.
      </td></tr></tbody></table></div><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3><p>
The
<span class="bold"><strong>Atom</strong></span>,
<span class="bold"><strong>Colormap</strong></span>,
<span class="bold"><strong>Cursor</strong></span>,
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>Font</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Pixmap</strong></span>
and
<span class="bold"><strong>Window</strong></span>
errors are also used when the argument type is extended by union with a
set of fixed alternatives, for example, &lt;WINDOW or
<span class="bold"><strong>PointerRoot</strong></span>
or
<span class="bold"><strong>None</strong></span>&gt;.
</p></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="Keyboards"></a>Chapter 5. Keyboards</h1></div></div></div><a id="idp26771780" class="indexterm"></a><p><a id="keycode"></a>
A KEYCODE represents a physical (or logical) key.
<a id="idp26773012" class="indexterm"></a>
<a id="idp26773580" class="indexterm"></a>
Keycodes lie in the inclusive range [8,255].
A keycode value carries no intrinsic information,
although server implementors may attempt to encode geometry information
(for example, matrix) to be interpreted in a server-dependent fashion.
The mapping between keys and keycodes cannot be changed using the
protocol.
</p><p><a id="keysym"></a>
A KEYSYM is an encoding of a symbol on the cap of a key.
<a id="idp26774852" class="indexterm"></a>
<a id="idp26775420" class="indexterm"></a>
The set of defined KEYSYMs include the character sets Latin-1, Latin-2,
Latin-3, Latin-4, Kana, Arabic, Cyrillic, Greek, Tech, Special, Publish, APL,
Hebrew, Thai, and Korean as well as a set of symbols common on keyboards
(Return, Help, Tab,
and so on).
KEYSYMs with the most significant bit (of the 29 bits) set are reserved
as vendor-specific.
</p><p>
A list of KEYSYMs is associated with each KEYCODE.
The list is intended to convey the set of symbols on the corresponding key.
If the list (ignoring trailing
<span class="keysym">NoSymbol</span>
entries) is a single KEYSYM "<span class="emphasis"><em>K</em></span>",
then the list is treated as if it were
the list "<span class="emphasis"><em>K</em></span> <span class="keysym">NoSymbol</span>
<span class="emphasis"><em>K</em></span> <span class="keysym">NoSymbol</span>".
If the list (ignoring trailing <span class="keysym">NoSymbol</span> entries)
is a pair of KEYSYMs
"<span class="emphasis"><em>K1 K2</em></span>", then the list is treated as
if it were the list
"<span class="emphasis"><em>K1 K2 K1 K2</em></span>".
If the list (ignoring trailing
<span class="keysym">NoSymbol</span>
entries) is
a triple of KEYSYMs "<span class="emphasis"><em>K1 K2 K3</em></span>",
then the list is treated as if it were the list "
<span class="emphasis"><em>K1 K2 K3</em></span> <span class="keysym">NoSymbol</span>".
When an explicit "void" element is desired in the list,
the value
<span class="keysym">VoidSymbol</span>
can be used.
</p><p>

The first four elements of the list are split into two groups of KEYSYMs.
Group 1 contains the first and second KEYSYMs, Group 2 contains the third and
fourth KEYSYMs.
Within each group,
if the second element of the group is
<span class="keysym">NoSymbol</span>,
then the group should be treated as if the second element were the
same as the first element, except when the first element is an alphabetic
KEYSYM "<span class="emphasis"><em>K</em></span>" for which both lowercase
and uppercase forms are defined.
In that case, the group should be treated as if the first element were the
lowercase form of "<span class="emphasis"><em>K</em></span>" and the second
element were the uppercase form
of "<span class="emphasis"><em>K</em></span>".
</p><p><a id="keysym_from_keypress"></a>
The standard rules for obtaining a KEYSYM from a
<a class="link" href="#events:KeyPress"><span class="bold"><strong>KeyPress</strong></span></a>
<a id="idp26784212" class="indexterm"></a>
event make use of only the Group 1 and Group 2 KEYSYMs; no interpretation of
other KEYSYMs in the list is defined.  The modifier state determines which
group to use.  Switching between groups is controlled by the KEYSYM named
MODE SWITCH, by attaching that KEYSYM to some KEYCODE and attaching that
KEYCODE to any one of the modifiers
<span class="bold"><strong>Mod1</strong></span>
through
<span class="bold"><strong>Mod5</strong></span>.
This modifier is
<a id="idp26785708" class="indexterm"></a>
called the "<em class="firstterm"><a id="group_modifier"></a>group modifier</em>".  For any KEYCODE, Group 1 is used when the
group modifier is off, and Group 2 is used when the group modifier is on.
</p><p><a id="modifier:lock"></a>
The
<span class="bold"><strong>Lock</strong></span>
<a id="idp26787644" class="indexterm"></a>
modifier is interpreted as CapsLock when the KEYSYM named CAPS
LOCK is attached to some KEYCODE and that KEYCODE is attached to the
<span class="bold"><strong>Lock</strong></span>
modifier.  The
<span class="bold"><strong>Lock</strong></span>
modifier is interpreted as ShiftLock when the KEYSYM
named SHIFT LOCK is attached to some KEYCODE and that KEYCODE is attached
to the
<span class="bold"><strong>Lock</strong></span>
modifier.  If the
<span class="bold"><strong>Lock</strong></span>
modifier could be interpreted as both
CapsLock and ShiftLock, the CapsLock interpretation is used.
</p><p><a id="modifier:numlock"></a>

The operation of "keypad" keys is controlled by the KEYSYM named NUM LOCK,
by attaching that KEYSYM to some KEYCODE and attaching that KEYCODE to any
one of the modifiers
<span class="bold"><strong>Mod1</strong></span>
through
<span class="bold"><strong>Mod5</strong></span>.
This modifier is called the
<a id="idp26791604" class="indexterm"></a>
"numlock modifier".  The standard KEYSYMs with the prefix KEYPAD in their
name are called "keypad" KEYSYMs; these are KEYSYMS with numeric value in
the hexadecimal range #xFF80 to #xFFBD inclusive.  In addition,
vendor-specific KEYSYMS in the hexadecimal range #x11000000 to #x1100FFFF
are also keypad KEYSYMs.
</p><p>

Within a group, the choice of KEYSYM is determined by applying the first
rule that is satisfied from the following list:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
The numlock modifier is on and the second KEYSYM is a keypad KEYSYM.  In
this case, if the
<span class="bold"><strong>Shift</strong></span>
modifier is on, or if the
<span class="bold"><strong>Lock</strong></span>
modifier is on and
is interpreted as ShiftLock, then the first KEYSYM is used; otherwise, the
second KEYSYM is used.
    </p></li><li class="listitem"><p>
The
<span class="bold"><strong>Shift</strong></span>
and
<span class="bold"><strong>Lock</strong></span>
modifiers are both off.  In this case, the first
KEYSYM is used.
    </p></li><li class="listitem"><p>
The
<span class="bold"><strong>Shift</strong></span>
modifier is off, and the
<span class="bold"><strong>Lock</strong></span>
modifier is on and is
interpreted as CapsLock.  In this case, the first KEYSYM is used, but if
that KEYSYM is lowercase alphabetic, then the corresponding uppercase
KEYSYM is used instead.
    </p></li><li class="listitem"><p>
The
<span class="bold"><strong>Shift</strong></span>
modifier is on, and the
<span class="bold"><strong>Lock</strong></span>
modifier is on and is interpreted
as CapsLock.  In this case, the second KEYSYM is used, but if that KEYSYM
is lowercase alphabetic, then the corresponding uppercase KEYSYM is used
instead.
    </p></li><li class="listitem"><p>
The
<span class="bold"><strong>Shift</strong></span>
modifier is on, or the
<span class="bold"><strong>Lock</strong></span>
modifier is on and is interpreted
as ShiftLock, or both.  In this case, the second KEYSYM is used.
    </p></li></ul></div><p>

The mapping between KEYCODEs and KEYSYMs is not used directly by the server;
it is merely stored for reading and writing by clients.
</p></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="Pointers"></a>Chapter 6. Pointers</h1></div></div></div><p><a id="pointers:buttons"></a>
Buttons are always numbered starting with one.
<a id="idp26801884" class="indexterm"></a>
</p></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="Predefined_Atoms"></a>Chapter 7. Predefined Atoms</h1></div></div></div><p>

<a id="idp26803860" class="indexterm"></a>
Predefined atoms are not strictly necessary and may not be useful in all
environments, but they will eliminate many
<a class="link" href="#requests:InternAtom" title="InternAtom"><span class="bold"><strong>InternAtom</strong></span></a>
requests in most applications.
Note that they are predefined only in the sense of having numeric values,
not in the sense of having required semantics.
The core protocol imposes no semantics on these names,
but semantics are specified in other X Window System standards,
such as the
<em class="citetitle">Inter-Client Communication Conventions Manual</em>
and the <em class="citetitle">X Logical Font Description Conventions</em>.
</p><p>
The following names have predefined atom values.
Note that uppercase and lowercase matter.
</p><table border="0" summary="Simple list" class="simplelist"><tr><td>ARC</td><td>ITALIC_ANGLE</td><td>STRING</td></tr><tr><td>ATOM</td><td>MAX_SPACE</td><td>SUBSCRIPT_X</td></tr><tr><td>BITMAP</td><td>MIN_SPACE</td><td>SUBSCRIPT_Y</td></tr><tr><td>CAP_HEIGHT</td><td>NORM_SPACE</td><td>SUPERSCRIPT_X</td></tr><tr><td>CARDINAL</td><td>NOTICE</td><td>SUPERSCRIPT_Y</td></tr><tr><td>COLORMAP</td><td>PIXMAP</td><td>UNDERLINE_POSITION</td></tr><tr><td>COPYRIGHT</td><td>POINT</td><td>UNDERLINE_THICKNESS</td></tr><tr><td>CURSOR</td><td>POINT_SIZE</td><td>VISUALID</td></tr><tr><td>CUT_BUFFER0</td><td>PRIMARY</td><td>WEIGHT</td></tr><tr><td>CUT_BUFFER1</td><td>QUAD_WIDTH</td><td>WINDOW</td></tr><tr><td>CUT_BUFFER2</td><td>RECTANGLE</td><td>WM_CLASS</td></tr><tr><td>CUT_BUFFER3</td><td>RESOLUTION</td><td>WM_CLIENT_MACHINE</td></tr><tr><td>CUT_BUFFER4</td><td>RESOURCE_MANAGER</td><td>WM_COMMAND</td></tr><tr><td>CUT_BUFFER5</td><td>RGB_BEST_MAP</td><td>WM_HINTS</td></tr><tr><td>CUT_BUFFER6</td><td>RGB_BLUE_MAP</td><td>WM_ICON_NAME</td></tr><tr><td>CUT_BUFFER7</td><td>RGB_COLOR_MAP</td><td>WM_ICON_SIZE</td></tr><tr><td>DRAWABLE</td><td>RGB_DEFAULT_MAP</td><td>WM_NAME</td></tr><tr><td>END_SPACE</td><td>RGB_GRAY_MAP</td><td>WM_NORMAL_HINTS</td></tr><tr><td>FAMILY_NAME</td><td>RGB_GREEN_MAP</td><td>WM_SIZE_HINTS</td></tr><tr><td>FONT</td><td>RGB_RED_MAP</td><td>WM_TRANSIENT_FOR</td></tr><tr><td>FONT_NAME</td><td>SECONDARY</td><td>WM_ZOOM_HINTS</td></tr><tr><td>FULL_NAME</td><td>STRIKEOUT_ASCENT</td><td>X_HEIGHT</td></tr><tr><td>INTEGER</td><td>STRIKEOUT_DESCENT</td><td> </td></tr></table><p>

To avoid conflicts with possible future names for which semantics might be
imposed (either at the protocol level or in terms of higher level user
interface models),
names beginning with an underscore should be used for atoms
that are private to a particular vendor or organization.
To guarantee no conflicts between vendors and organizations,
additional prefixes need to be used.
However, the protocol does not define the mechanism for choosing such prefixes.
For names private to a single application or end user but stored in globally
accessible locations,
it is suggested that two leading underscores be used to avoid conflicts with
other names.
</p></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="Connection_Setup"></a>Chapter 8. Connection Setup</h1></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="#connection_initiation">Connection Initiation</a></span></dt><dt><span class="section"><a href="#server_response">Server Response</a></span></dt><dt><span class="section"><a href="#server_information">Server Information</a></span></dt><dt><span class="section"><a href="#screen_information">Screen Information</a></span></dt><dt><span class="section"><a href="#visual_information">Visual Information</a></span></dt></dl></div><a id="idp26823748" class="indexterm"></a><p>
For remote clients,
the X protocol can be built on top of any reliable byte stream.
  </p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="connection_initiation"></a>Connection Initiation</h2></div></div></div><a id="idp26825020" class="indexterm"></a><p><a id="byte-order"></a>
The client must send an initial byte of data to identify the byte order to be
employed.
<a id="idp26825964" class="indexterm"></a>
The value of the byte must be octal 102 or 154.
The value 102 (ASCII uppercase B) means values are transmitted most significant
byte first, and value 154 (ASCII lowercase l) means values are transmitted
least significant byte first.
Except where explicitly noted in the protocol,
all 16-bit and 32-bit quantities sent by the client must be transmitted with
this byte order,
and all 16-bit and 32-bit quantities returned by the server will be transmitted
with this byte order.
    </p><p>
Following the byte-order byte,
the client sends the following information at connection setup:
    </p><div class="blockquote"><blockquote class="blockquote"><p>
protocol-major-version: CARD16
    </p><p>
protocol-minor-version: CARD16
    </p><p>
authorization-protocol-name: STRING8
    </p><p>
authorization-protocol-data: STRING8
    </p></blockquote></div><p>
The version numbers indicate what version of the protocol the client
expects the server to implement.
    </p><p><a id="authorization"></a>
The authorization name indicates what authorization (and authentication)
protocol the client
expects the server to use, and the data is specific to that protocol.
<a id="idp26829276" class="indexterm"></a>
Specification of valid authorization mechanisms is not part of the core
X protocol.
A server that does not implement the protocol the client expects
or that only implements the host-based mechanism may simply ignore this
information.
If both name and data strings are empty,
this is to be interpreted as "no explicit authorization."
    </p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="server_response"></a>Server Response</h2></div></div></div><p>
The client receives the following information at connection setup:
    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
success:
{ <span class="bold"><strong>Failed</strong></span>,
<span class="bold"><strong>Success</strong></span>,
<span class="bold"><strong>Authenticate</strong></span>}
    </p></li></ul></div><p>
The client receives the following additional data if the returned success
value is
<span class="bold"><strong>Failed</strong></span>,
and the connection is not successfully established:
    </p><div class="blockquote"><blockquote class="blockquote"><p>
protocol-major-version: CARD16
    </p><p>
protocol-minor-version: CARD16
    </p><p>
reason: STRING8
    </p></blockquote></div><p>
The client receives the following additional data if the returned success
value is
<span class="bold"><strong>Authenticate</strong></span>,
and further authentication negotiation is required:
    </p><div class="blockquote"><blockquote class="blockquote"><p>
reason: STRING8
    </p></blockquote></div><p>
The contents of the reason string are specific to the authorization
protocol in use.  The semantics of this authentication negotiation are
not constrained, except that the negotiation must eventually terminate
with a reply from the server containing a success value of
<span class="bold"><strong>Failed</strong></span>
or
<span class="bold"><strong>Success</strong></span>.
    </p><p>
The client receives the following additional data if the returned success
value is
<span class="bold"><strong>Success</strong></span>,
and the connection is successfully established:
    </p><div class="blockquote"><blockquote class="blockquote"><p>
protocol-major-version: CARD16
    </p><p>

protocol-minor-version: CARD16
    </p><p>

vendor: STRING8
    </p><p>

release-number: CARD32
    </p><p>

resource-id-base, resource-id-mask: CARD32
    </p><p>

image-byte-order:
{ <span class="bold"><strong>LSBFirst</strong></span>,
<span class="bold"><strong>MSBFirst</strong></span> }
    </p><p>

bitmap-scanline-unit: {8, 16, 32}
    </p><p>

bitmap-scanline-pad: {8, 16, 32}
    </p><p>

bitmap-bit-order:
{ <span class="bold"><strong>LeastSignificant</strong></span>,
<span class="bold"><strong>MostSignificant</strong></span> }
    </p><p>

pixmap-formats: LISTofFORMAT
    </p><p>

roots: LISTofSCREEN
    </p><p>

motion-buffer-size: CARD32
    </p><p>

maximum-request-length: CARD16
    </p><p>

min-keycode, max-keycode: KEYCODE
    </p><p>
where:
    </p><div class="blockquote"><blockquote class="blockquote"><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><tbody><tr><td align="left">FORMAT:</td><td align="left">[depth: CARD8,</td></tr><tr><td align="left"> </td><td align="left">
bits-per-pixel: {1, 4, 8, 16, 24, 32}
      </td></tr><tr><td align="left"> </td><td align="left">
scanline-pad: {8, 16, 32}]
      </td></tr><tr><td align="left">SCREEN:</td><td align="left">[root: WINDOW</td></tr><tr><td align="left"> </td><td align="left">width-in-pixels, height-in-pixels: CARD16</td></tr><tr><td align="left"> </td><td align="left">width-in-millimeters, height-in-millimeters: CARD16</td></tr><tr><td align="left"> </td><td align="left">allowed-depths: LISTofDEPTH</td></tr><tr><td align="left"> </td><td align="left">root-depth: CARD8</td></tr><tr><td align="left"> </td><td align="left">root-visual: VISUALID</td></tr><tr><td align="left"> </td><td align="left">default-colormap: COLORMAP</td></tr><tr><td align="left"> </td><td align="left">white-pixel, black-pixel: CARD32</td></tr><tr><td align="left"> </td><td align="left">min-installed-maps, max-installed-maps: CARD16</td></tr><tr><td align="left"> </td><td align="left">backing-stores: {Never, WhenMapped, Always}</td></tr><tr><td align="left"> </td><td align="left">save-unders: BOOL</td></tr><tr><td align="left"> </td><td align="left">current-input-masks: SETofEVENT]</td></tr><tr><td align="left">DEPTH:</td><td align="left">[depth: CARD8</td></tr><tr><td align="left"> </td><td align="left">visuals: LISTofVISUALTYPE]</td></tr><tr><td align="left">VISUALTYPE:</td><td align="left">[visual-id: VISUALID</td></tr><tr><td align="left"> </td><td align="left">
class: {StaticGray, StaticColor, TrueColor, GrayScale,
PseudoColor, DirectColor}
      </td></tr><tr><td align="left"> </td><td align="left">red-mask, green-mask, blue-mask: CARD32</td></tr><tr><td align="left"> </td><td align="left">bits-per-rgb-value: CARD8</td></tr><tr><td align="left"> </td><td align="left">colormap-entries: CARD16]</td></tr></tbody></table></div></blockquote></div></blockquote></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="server_information"></a>Server Information</h2></div></div></div><p>
The information that is global to the server is:
    </p><p>
The protocol version numbers are an escape hatch in case future revisions of
the protocol are necessary.
In general,
the major version would increment for incompatible changes,
and the minor version would increment for small upward compatible changes.
Barring changes,
the major version will be 11, and the minor version will be 0.
The protocol version numbers returned indicate the protocol the server
actually supports.
This might not equal the version sent by the client.
The server can (but need not) refuse connections from clients that offer a
different version than the server supports.
A server can (but need not) support more than one version simultaneously.
    </p><p>
The vendor string gives some identification of the owner of the server
implementation.
The vendor controls the semantics of the release number.
    </p><p><a id="resource-id-mask"></a>
The resource-id-mask contains a single contiguous set of bits (at least 18).
The client allocates resource IDs for types WINDOW, PIXMAP,
CURSOR, FONT, GCONTEXT, and COLORMAP by choosing a value with only
some subset of these bits set and ORing it with resource-id-base.
<a id="idp26864156" class="indexterm"></a>
Only values constructed in this way can be used to name newly created
resources over this connection.
Resource IDs never have the top three bits set.
The client is not restricted to linear or contiguous allocation
of resource IDs.
Once an ID has been freed,
it can be reused.
An ID must be unique with respect to the IDs of all other resources,
not just other resources of the same type.
However, note that the value spaces of resource identifiers,
atoms, visualids, and keysyms are distinguished by context, and
as such, are not required to be disjoint; for example, a given numeric value
might be both a valid window ID, a valid atom, and a valid keysym.
    </p><p>
Although the server is in general responsible for byte-swapping data to
match the client,
images are always transmitted and received in formats (including byte order)
specified by the server.
The byte order for images is given by image-byte-order and applies to each
scanline unit in XY format (bitmap format) and to each pixel value in Z format.
    </p><p><a id="bitmap-format"></a>
A bitmap is represented in <a class="glossterm" href="#glossary:Scanline_order"><em class="glossterm">scanline order</em></a>.
<a id="idp26866732" class="indexterm"></a>
Each <a class="glossterm" href="#glossary:Scanline"><em class="glossterm">scanline</em></a>
is padded to a multiple of bits as given by bitmap-scanline-pad.
The pad bits are of arbitrary value.
The scanline is quantized in multiples of bits as given by bitmap-scanline-unit.
The bitmap-scanline-unit is always less than or equal to the
bitmap-scanline-pad.
Within each unit,
the leftmost bit in the bitmap is either the least significant
or most significant bit in the unit, as given by bitmap-bit-order.
<a id="idp26868084" class="indexterm"></a>
If a pixmap is represented in XY format,
each plane is represented as a bitmap, and the planes appear from
most significant to least significant in bit order with no padding
between planes.
    </p><p><a id="pixmap-formats"></a>
Pixmap-formats contains one entry for each
<a class="glossterm" href="#glossary:Depth"><em class="glossterm">depth</em></a> value.
<a id="idp26869476" class="indexterm"></a>
<a id="idp26870052" class="indexterm"></a>
The entry describes the <a class="glossterm" href="#glossary:ZFormat"><em class="glossterm">Z format</em></a>
used to represent images of that depth.
An entry for a depth is included if any screen supports that depth,
and all screens supporting that depth must support only that Z format for that
depth.
In Z format,
the pixels are in scanline order, left to right within a scanline.
The number of bits used to hold each pixel is given by bits-per-pixel.
Bits-per-pixel may be larger than strictly required by the depth,
in which case the least significant bits are used to hold
the pixmap data, and the values of the unused high-order bits are
undefined.
When the bits-per-pixel is 4,
the order of nibbles in the byte is the same as the image byte-order.
When the bits-per-pixel is 1,
the format is identical for bitmap format.
Each scanline is padded to a multiple of bits as given by scanline-pad.
When bits-per-pixel is 1,
this will be identical to bitmap-scanline-pad.
    </p><p>
How a pointing device roams the screens is up to the server
implementation and is transparent to the protocol.
No geometry is defined among screens.
    </p><p>
The server may retain the recent history of pointer motion and do so to a
finer granularity than is reported by
<a class="link" href="#events:MotionNotify"><span class="bold"><strong>MotionNotify</strong></span></a>
events.
The
<a class="link" href="#requests:GetMotionEvents" title="GetMotionEvents"><span class="bold"><strong>GetMotionEvents</strong></span></a>
request makes such history available.
The motion-buffer-size gives the approximate maximum number
of elements in the history buffer.
    </p><p><a id="Maximum-request-length"></a>
Maximum-request-length specifies the maximum length of a request
accepted by the server, in 4-byte units.
<a id="idp26874196" class="indexterm"></a>
That is, length is the maximum value that can appear in the length field of a
request.
Requests larger than this maximum generate a
<span class="bold"><strong>Length</strong></span>
error,
and the server will read and simply discard the entire request.
Maximum-request-length will always be at least 4096
(that is, requests of length up to and including 16384 bytes
will be accepted by all servers).
    </p><p><a id="keycode_range"></a>
<a id="idp26875852" class="indexterm"></a>
<a id="idp26876428" class="indexterm"></a>
Min-keycode and max-keycode specify the smallest and largest keycode
values transmitted by the server.
Min-keycode is never less than 8,
and max-keycode is never greater than 255.
Not all keycodes in this range are required to have corresponding keys.
    </p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="screen_information"></a>Screen Information</h2></div></div></div><a id="idp26877788" class="indexterm"></a><p>
The information that applies per screen is:
    </p><p>
The allowed-depths specifies what pixmap and window depths are supported.
Pixmaps are supported for each depth listed,
and windows of that depth are supported if at least one visual type is listed
for the depth.
A pixmap depth of one is always supported and listed,
but windows of depth one might not be supported.
A depth of zero is never listed,
but zero-depth
<span class="bold"><strong>InputOnly</strong></span>
windows are always supported.
    </p><p>
Root-depth and root-visual specify the depth and visual type of the
root window.
Width-in-pixels and height-in-pixels specify the size of
the root window (which cannot be changed).
The class of the root window is always
<span class="bold"><strong>InputOutput</strong></span>.
Width-in-millimeters and height-in-millimeters can be used to determine the
physical size and the aspect ratio.
    </p><p>
The default-colormap is the one initially associated with the root window.
Clients with minimal color requirements creating windows of
the same depth as the root may want to allocate from this map by
default.
    </p><p>
Black-pixel and white-pixel can be used in implementing a monochrome
application.
These pixel values are for permanently allocated entries in the
default-colormap.
The actual RGB values may be settable on some screens
and, in any case, may not actually be black and white.
The names are intended to convey the expected relative intensity of the colors.
    </p><p>
The border of the root window is initially a pixmap filled with the black-pixel.
The initial background of the root window is a pixmap filled with some
unspecified two-color pattern using black-pixel and white-pixel.
    </p><p>
Min-installed-maps specifies the number of maps that can be guaranteed
to be installed simultaneously (with
<a class="link" href="#requests:InstallColormap" title="InstallColormap"><span class="bold"><strong>InstallColormap</strong></span></a>),
regardless of the number of entries allocated in each map.
Max-installed-maps specifies the maximum number of maps that might possibly be
installed simultaneously, depending on their allocations.
Multiple static-visual colormaps with identical contents but differing in
resource ID should be considered as a single map for the purposes of this
number.
For the typical case of a single hardware colormap, both values will be 1.
    </p><p><a id="Backing-stores"></a>
<a id="idp26883436" class="indexterm"></a>
Backing-stores indicates when the server supports backing stores for
this screen, although it may be storage limited in the number of
windows it can support at once.
If save-unders is
<span class="bold"><strong>True</strong></span>,
the server can support the save-under mode in
<a class="link" href="#requests:CreateWindow" title="CreateWindow"><span class="bold"><strong>CreateWindow</strong></span></a>
and
<a class="link" href="#requests:ChangeWindowAttributes" title="ChangeWindowAttributes"><span class="bold"><strong>ChangeWindowAttributes</strong></span></a>,
although again it may be storage limited.
    </p><p>
The current-input-events is what
<a class="link" href="#requests:GetWindowAttributes" title="GetWindowAttributes"><span class="bold"><strong>GetWindowAttributes</strong></span></a>
would return for the all-event-masks for the root window.
    </p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="visual_information"></a>Visual Information</h2></div></div></div><a id="idp26887252" class="indexterm"></a><p>
The information that applies per visual-type is:
    </p><p>
A given visual type might be listed for more than one depth or for
more than one screen.
    </p><p><a id="colormap_types"></a>
<a id="idp26888836" class="indexterm"></a>
<a id="idp26889548" class="indexterm"></a>
For
<span class="bold"><strong>PseudoColor</strong></span>,
a pixel value indexes a colormap to produce independent RGB values;
the RGB values can be changed dynamically.
<span class="bold"><strong>GrayScale</strong></span>
is treated in the same way as
<span class="bold"><strong>PseudoColor</strong></span>
except which primary drives the screen is undefined;
thus, the client should always store the
same value for red, green, and blue in colormaps.
For
<span class="bold"><strong>DirectColor</strong></span>,
a pixel value is decomposed into separate RGB subfields,
and each subfield separately indexes the colormap for the corresponding value.
The RGB values can be changed dynamically.
<span class="bold"><strong>TrueColor</strong></span>
is treated in the same way as
<span class="bold"><strong>DirectColor</strong></span>
except the colormap has predefined read-only RGB values.
These values are server-dependent but provide linear or near-linear
increasing ramps in each primary.
<span class="bold"><strong>StaticColor</strong></span>
is treated in the same way as
<span class="bold"><strong>PseudoColor</strong></span>
except the colormap has predefined read-only RGB values,
which are server-dependent.
<span class="bold"><strong>StaticGray</strong></span>
is treated in the same way as
<span class="bold"><strong>StaticColor</strong></span>
except the red, green, and blue values are equal for any
single pixel value, resulting in shades of gray.
<span class="bold"><strong>StaticGray</strong></span>
with a two-entry colormap can be thought of as monochrome.
    </p><p>
The red-mask, green-mask, and blue-mask are only defined for
<span class="bold"><strong>DirectColor</strong></span>
and
<span class="bold"><strong>TrueColor</strong></span>.
Each has one contiguous set of bits set to 1 with no intersections.
Usually each mask has the same number of bits set to 1.
    </p><p>
The bits-per-rgb-value specifies the log base 2 of the number of
distinct color intensity values (individually) of red, green, and blue.
This number need not bear any relation to the number of colormap entries.
Actual RGB values are always passed in the protocol within a
16-bit spectrum, with 0 being minimum intensity and 65535 being the
maximum intensity.
On hardware that provides a linear zero-based intensity ramp,
the following relationship exists:
    </p><p>
</p><pre class="literallayout">
       hw-intensity = protocol-intensity / (65536 / total-hw-intensities)
</pre><p>
    </p><p>
Colormap entries are indexed from 0.
The colormap-entries defines the number of available colormap entries in a
newly created colormap.
For
<span class="bold"><strong>DirectColor</strong></span>
and
<span class="bold"><strong>TrueColor</strong></span>,
this will usually be 2 to the power of the maximum number of bits set to 1 in
red-mask, green-mask, and blue-mask.
    </p></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="Requests"></a>Chapter 9. Requests</h1></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="#requests:CreateWindow">CreateWindow</a></span></dt><dt><span class="section"><a href="#requests:ChangeWindowAttributes">ChangeWindowAttributes</a></span></dt><dt><span class="section"><a href="#requests:GetWindowAttributes">GetWindowAttributes</a></span></dt><dt><span class="section"><a href="#requests:DestroyWindow">DestroyWindow</a></span></dt><dt><span class="section"><a href="#requests:DestroySubwindows">DestroySubwindows</a></span></dt><dt><span class="section"><a href="#requests:ChangeSaveSet">ChangeSaveSet</a></span></dt><dt><span class="section"><a href="#requests:ReparentWindow">ReparentWindow</a></span></dt><dt><span class="section"><a href="#requests:MapWindow">MapWindow</a></span></dt><dt><span class="section"><a href="#requests:MapSubwindows">MapSubwindows</a></span></dt><dt><span class="section"><a href="#requests:UnmapWindow">UnmapWindow</a></span></dt><dt><span class="section"><a href="#requests:UnmapSubwindows">UnmapSubwindows</a></span></dt><dt><span class="section"><a href="#requests:ConfigureWindow">ConfigureWindow</a></span></dt><dt><span class="section"><a href="#requests:CirculateWindow">CirculateWindow</a></span></dt><dt><span class="section"><a href="#requests:GetGeometry">GetGeometry</a></span></dt><dt><span class="section"><a href="#requests:QueryTree">QueryTree</a></span></dt><dt><span class="section"><a href="#requests:InternAtom">InternAtom</a></span></dt><dt><span class="section"><a href="#requests:GetAtomName">GetAtomName</a></span></dt><dt><span class="section"><a href="#requests:ChangeProperty">ChangeProperty</a></span></dt><dt><span class="section"><a href="#requests:DeleteProperty">DeleteProperty</a></span></dt><dt><span class="section"><a href="#requests:GetProperty">GetProperty</a></span></dt><dt><span class="section"><a href="#requests:RotateProperties">RotateProperties</a></span></dt><dt><span class="section"><a href="#requests:ListProperties">ListProperties</a></span></dt><dt><span class="section"><a href="#requests:SetSelectionOwner">SetSelectionOwner</a></span></dt><dt><span class="section"><a href="#requests:GetSelectionOwner">GetSelectionOwner</a></span></dt><dt><span class="section"><a href="#requests:ConvertSelection">ConvertSelection</a></span></dt><dt><span class="section"><a href="#requests:SendEvent">SendEvent</a></span></dt><dt><span class="section"><a href="#requests:GrabPointer">GrabPointer</a></span></dt><dt><span class="section"><a href="#requests:UngrabPointer">UngrabPointer</a></span></dt><dt><span class="section"><a href="#requests:GrabButton">GrabButton</a></span></dt><dt><span class="section"><a href="#requests:UngrabButton">UngrabButton</a></span></dt><dt><span class="section"><a href="#requests:ChangeActivePointerGrab">ChangeActivePointerGrab</a></span></dt><dt><span class="section"><a href="#requests:GrabKeyboard">GrabKeyboard</a></span></dt><dt><span class="section"><a href="#requests:UngrabKeyboard">UngrabKeyboard</a></span></dt><dt><span class="section"><a href="#requests:GrabKey">GrabKey</a></span></dt><dt><span class="section"><a href="#requests:UngrabKey">UngrabKey</a></span></dt><dt><span class="section"><a href="#requests:AllowEvents">AllowEvents</a></span></dt><dt><span class="section"><a href="#requests:GrabServer">GrabServer</a></span></dt><dt><span class="section"><a href="#requests:UngrabServer">UngrabServer</a></span></dt><dt><span class="section"><a href="#requests:QueryPointer">QueryPointer</a></span></dt><dt><span class="section"><a href="#requests:GetMotionEvents">GetMotionEvents</a></span></dt><dt><span class="section"><a href="#requests:TranslateCoordinates">TranslateCoordinates</a></span></dt><dt><span class="section"><a href="#requests:WarpPointer">WarpPointer</a></span></dt><dt><span class="section"><a href="#requests:SetInputFocus">SetInputFocus</a></span></dt><dt><span class="section"><a href="#requests:GetInputFocus">GetInputFocus</a></span></dt><dt><span class="section"><a href="#requests:QueryKeymap">QueryKeymap</a></span></dt><dt><span class="section"><a href="#requests:OpenFont">OpenFont</a></span></dt><dt><span class="section"><a href="#requests:CloseFont">CloseFont</a></span></dt><dt><span class="section"><a href="#requests:QueryFont">QueryFont</a></span></dt><dt><span class="section"><a href="#requests:QueryTextExtents">QueryTextExtents</a></span></dt><dt><span class="section"><a href="#requests:ListFonts">ListFonts</a></span></dt><dt><span class="section"><a href="#requests:ListFontsWithInfo">ListFontsWithInfo</a></span></dt><dt><span class="section"><a href="#requests:SetFontPath">SetFontPath</a></span></dt><dt><span class="section"><a href="#requests:GetFontPath">GetFontPath</a></span></dt><dt><span class="section"><a href="#requests:CreatePixmap">CreatePixmap</a></span></dt><dt><span class="section"><a href="#requests:FreePixmap">FreePixmap</a></span></dt><dt><span class="section"><a href="#requests:CreateGC">CreateGC</a></span></dt><dt><span class="section"><a href="#requests:ChangeGC">ChangeGC</a></span></dt><dt><span class="section"><a href="#requests:CopyGC">CopyGC</a></span></dt><dt><span class="section"><a href="#requests:SetDashes">SetDashes</a></span></dt><dt><span class="section"><a href="#requests:SetClipRectangles">SetClipRectangles</a></span></dt><dt><span class="section"><a href="#requests:FreeGC">FreeGC</a></span></dt><dt><span class="section"><a href="#requests:ClearArea">ClearArea</a></span></dt><dt><span class="section"><a href="#requests:CopyArea">CopyArea</a></span></dt><dt><span class="section"><a href="#requests:CopyPlane">CopyPlane</a></span></dt><dt><span class="section"><a href="#requests:PolyPoint">PolyPoint</a></span></dt><dt><span class="section"><a href="#requests:PolyLine">PolyLine</a></span></dt><dt><span class="section"><a href="#requests:PolySegment">PolySegment</a></span></dt><dt><span class="section"><a href="#requests:PolyRectangle">PolyRectangle</a></span></dt><dt><span class="section"><a href="#requests:PolyArc">PolyArc</a></span></dt><dt><span class="section"><a href="#requests:FillPoly">FillPoly</a></span></dt><dt><span class="section"><a href="#requests:PolyFillRectangle">PolyFillRectangle</a></span></dt><dt><span class="section"><a href="#requests:PolyFillArc">PolyFillArc</a></span></dt><dt><span class="section"><a href="#requests:PutImage">PutImage</a></span></dt><dt><span class="section"><a href="#requests:GetImage">GetImage</a></span></dt><dt><span class="section"><a href="#requests:PolyText8">PolyText8</a></span></dt><dt><span class="section"><a href="#requests:PolyText16">PolyText16</a></span></dt><dt><span class="section"><a href="#requests:ImageText8">ImageText8</a></span></dt><dt><span class="section"><a href="#requests:ImageText16">ImageText16</a></span></dt><dt><span class="section"><a href="#requests:CreateColormap">CreateColormap</a></span></dt><dt><span class="section"><a href="#requests:FreeColormap">FreeColormap</a></span></dt><dt><span class="section"><a href="#requests:CopyColormapAndFree">CopyColormapAndFree</a></span></dt><dt><span class="section"><a href="#requests:InstallColormap">InstallColormap</a></span></dt><dt><span class="section"><a href="#requests:UninstallColormap">UninstallColormap</a></span></dt><dt><span class="section"><a href="#requests:ListInstalledColormaps">ListInstalledColormaps</a></span></dt><dt><span class="section"><a href="#requests:AllocColor">AllocColor</a></span></dt><dt><span class="section"><a href="#requests:AllocNamedColor">AllocNamedColor</a></span></dt><dt><span class="section"><a href="#requests:AllocColorCells">AllocColorCells</a></span></dt><dt><span class="section"><a href="#requests:AllocColorPlanes">AllocColorPlanes</a></span></dt><dt><span class="section"><a href="#requests:FreeColors">FreeColors</a></span></dt><dt><span class="section"><a href="#requests:StoreColors">StoreColors</a></span></dt><dt><span class="section"><a href="#requests:StoreNamedColor">StoreNamedColor</a></span></dt><dt><span class="section"><a href="#requests:QueryColors">QueryColors</a></span></dt><dt><span class="section"><a href="#requests:LookupColor">LookupColor</a></span></dt><dt><span class="section"><a href="#requests:CreateCursor">CreateCursor</a></span></dt><dt><span class="section"><a href="#requests:CreateGlyphCursor">CreateGlyphCursor</a></span></dt><dt><span class="section"><a href="#requests:FreeCursor">FreeCursor</a></span></dt><dt><span class="section"><a href="#requests:RecolorCursor">RecolorCursor</a></span></dt><dt><span class="section"><a href="#requests:QueryBestSize">QueryBestSize</a></span></dt><dt><span class="section"><a href="#requests:QueryExtension">QueryExtension</a></span></dt><dt><span class="section"><a href="#requests:ListExtensions">ListExtensions</a></span></dt><dt><span class="section"><a href="#requests:SetModifierMapping">SetModifierMapping</a></span></dt><dt><span class="section"><a href="#requests:GetModifierMapping">GetModifierMapping</a></span></dt><dt><span class="section"><a href="#requests:ChangeKeyboardMapping">ChangeKeyboardMapping</a></span></dt><dt><span class="section"><a href="#requests:GetKeyboardMapping">GetKeyboardMapping</a></span></dt><dt><span class="section"><a href="#requests:ChangeKeyboardControl">ChangeKeyboardControl</a></span></dt><dt><span class="section"><a href="#requests:GetKeyboardControl">GetKeyboardControl</a></span></dt><dt><span class="section"><a href="#requests:Bell">Bell</a></span></dt><dt><span class="section"><a href="#requests:SetPointerMapping">SetPointerMapping</a></span></dt><dt><span class="section"><a href="#requests:GetPointerMapping">GetPointerMapping</a></span></dt><dt><span class="section"><a href="#requests:ChangePointerControl">ChangePointerControl</a></span></dt><dt><span class="section"><a href="#requests:GetPointerControl">GetPointerControl</a></span></dt><dt><span class="section"><a href="#requests:SetScreenSaver">SetScreenSaver</a></span></dt><dt><span class="section"><a href="#requests:GetScreenSaver">GetScreenSaver</a></span></dt><dt><span class="section"><a href="#requests:ForceScreenSaver">ForceScreenSaver</a></span></dt><dt><span class="section"><a href="#requests:ChangeHosts">ChangeHosts</a></span></dt><dt><span class="section"><a href="#requests:ListHosts">ListHosts</a></span></dt><dt><span class="section"><a href="#requests:SetAccessControl">SetAccessControl</a></span></dt><dt><span class="section"><a href="#requests:SetCloseDownMode">SetCloseDownMode</a></span></dt><dt><span class="section"><a href="#requests:KillClient">KillClient</a></span></dt><dt><span class="section"><a href="#requests:NoOperation">NoOperation</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:CreateWindow"></a>CreateWindow</h2></div></div></div><a id="idp26899676" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>wid</em></span>, <span class="emphasis"><em>parent</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>class</em></span>:
{ <span class="bold"><strong>InputOutput</strong></span>,
<span class="bold"><strong>InputOnly</strong></span>,
<span class="bold"><strong>CopyFromParent</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>depth</em></span>: CARD8
      </td></tr><tr><td align="left">
<span class="emphasis"><em>visual</em></span>: VISUALID or
<span class="bold"><strong>CopyFromParent</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>width</em></span>, <span class="emphasis"><em>height</em></span>, <span class="emphasis"><em>border-width</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>value-mask</em></span>: BITMASK
      </td></tr><tr><td align="left">
<span class="emphasis"><em>value-list</em></span>: LISTofVALUE

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>Colormap</strong></span>,
<span class="bold"><strong>Cursor</strong></span>,
<span class="bold"><strong>IDChoice</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Pixmap</strong></span>,
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request creates an unmapped window and assigns the identifier wid to it.
</p><p>
A class of
<span class="bold"><strong>CopyFromParent</strong></span>
means the class is taken from the parent.
A depth of zero for class
<span class="bold"><strong>InputOutput</strong></span>
or
<span class="bold"><strong>CopyFromParent</strong></span>
means the depth is taken from the parent.
A visual of
<span class="bold"><strong>CopyFromParent</strong></span>
means the visual type is taken from the parent.
For class
<span class="bold"><strong>InputOutput</strong></span>,
the visual type and depth must be a combination supported for the screen
(or a
<span class="bold"><strong>Match</strong></span>
error results).
The depth need not be the same as the parent,
but the parent must not be of class
<span class="bold"><strong>InputOnly</strong></span>
(or a
<span class="bold"><strong>Match</strong></span>
error results).
For class
<span class="bold"><strong>InputOnly</strong></span>,
the depth must be zero (or a
<span class="bold"><strong>Match</strong></span>
error results), and the visual must be one supported for the screen (or a
<span class="bold"><strong>Match</strong></span>
error results).
However, the parent can have any depth and class.
</p><p>
The server essentially acts as if
<span class="bold"><strong>InputOnly</strong></span>
windows do not exist for the purposes of graphics requests,
exposure processing, and
<a class="link" href="#events:VisibilityNotify" title="VisibilityNotify"><span class="bold"><strong>VisibilityNotify</strong></span></a>
events.
An
<span class="bold"><strong>InputOnly</strong></span>
window cannot be used as a drawable (as a source or destination for graphics
requests).
<span class="bold"><strong>InputOnly</strong></span>
and
<span class="bold"><strong>InputOutput</strong></span>
windows act identically in other respects-properties,
grabs, input control, and so on.
</p><p>
The coordinate system has the X axis horizontal and the Y axis vertical
with the origin [0, 0] at the upper-left corner.
Coordinates are integral,
in terms of pixels,
and coincide with pixel centers.
Each window and pixmap has its own coordinate system.
For a window,
the origin is inside the border at the inside, upper-left corner.
</p><p>
The x and y coordinates
for the window are relative to the parent's origin
and specify the position of the upper-left outer corner of the window
(not the origin).
The width and height specify the inside size (not including the border)
and must be nonzero (or a
<span class="bold"><strong>Value</strong></span>
error results).
The border-width for an
<span class="bold"><strong>InputOnly</strong></span>
window must be zero (or a
<span class="bold"><strong>Match</strong></span>
error results).
</p><p>
The window is placed on top in the stacking order with respect to siblings.
</p><p>
The value-mask and value-list specify attributes of the window that are
to be explicitly initialized.
The possible values are:
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Attribute</th><th align="left">Type</th></tr></thead><tbody><tr><td align="left">background-pixmap</td><td align="left">
PIXMAP or
<span class="bold"><strong>None</strong></span>
or
<span class="bold"><strong>ParentRelative</strong></span>
      </td></tr><tr><td align="left">background-pixel</td><td align="left">CARD32</td></tr><tr><td align="left">border-pixmap</td><td align="left">
PIXMAP or
<span class="bold"><strong>CopyFromParent</strong></span>
      </td></tr><tr><td align="left">border-pixel</td><td align="left">CARD32</td></tr><tr><td align="left">bit-gravity</td><td align="left">BITGRAVITY</td></tr><tr><td align="left">win-gravity</td><td align="left">WINGRAVITY</td></tr><tr><td align="left">backing-store</td><td align="left">
{ <span class="bold"><strong>NotUseful</strong></span>,
<span class="bold"><strong>WhenMapped</strong></span>,
<span class="bold"><strong>Always</strong></span> }
      </td></tr><tr><td align="left">backing-planes</td><td align="left">CARD32</td></tr><tr><td align="left">backing-pixel</td><td align="left">CARD32</td></tr><tr><td align="left">save-under</td><td align="left">BOOL</td></tr><tr><td align="left">event-mask</td><td align="left">SETofEVENT</td></tr><tr><td align="left">do-not-propagate-mask</td><td align="left">SETofDEVICEEVENT</td></tr><tr><td align="left">override-redirect</td><td align="left">BOOL</td></tr><tr><td align="left">colormap</td><td align="left">
COLORMAP or
<span class="bold"><strong>CopyFromParent</strong></span>
      </td></tr><tr><td align="left">cursor</td><td align="left">
CURSOR or
<span class="bold"><strong>None</strong></span>
      </td></tr></tbody></table></div><p>
The default values when attributes are not explicitly initialized
are:
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Attribute</th><th align="left">Default</th></tr></thead><tbody><tr><td align="left">background-pixmap</td><td align="left">
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">border-pixmap</td><td align="left">
<span class="bold"><strong>CopyFromParent</strong></span>
      </td></tr><tr><td align="left">bit-gravity</td><td align="left">
<span class="bold"><strong>Forget</strong></span>
      </td></tr><tr><td align="left">win-gravity</td><td align="left">
<span class="bold"><strong>NorthWest</strong></span>
      </td></tr><tr><td align="left">backing-store</td><td align="left">
<span class="bold"><strong>NotUseful</strong></span>
      </td></tr><tr><td align="left">backing-planes</td><td align="left">all ones</td></tr><tr><td align="left">backing-pixel</td><td align="left">zero</td></tr><tr><td align="left">save-under</td><td align="left">
<span class="bold"><strong>False</strong></span>
      </td></tr><tr><td align="left">event-mask</td><td align="left">{} (empty set)</td></tr><tr><td align="left">do-not-propagate-mask</td><td align="left">{} (empty set)</td></tr><tr><td align="left">override-redirect</td><td align="left">
<span class="bold"><strong>False</strong></span>
      </td></tr><tr><td align="left">colormap</td><td align="left">
<span class="bold"><strong>CopyFromParent</strong></span>
      </td></tr><tr><td align="left">cursor</td><td align="left">
<span class="bold"><strong>None</strong></span>
      </td></tr></tbody></table></div><p>
Only the following attributes are defined for
<span class="bold"><strong>InputOnly</strong></span>
windows:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
win-gravity
    </p></li><li class="listitem"><p>
event-mask
    </p></li><li class="listitem"><p>
do-not-propagate-mask
    </p></li><li class="listitem"><p>
override-redirect
    </p></li><li class="listitem"><p>
cursor
    </p></li></ul></div><p>
It is a
<span class="bold"><strong>Match</strong></span>
error to specify any other attributes for
<span class="bold"><strong>InputOnly</strong></span>
windows.
</p><p><a id="requests:CreateWindow:background"></a>
<a id="idp26962668" class="indexterm"></a>
If background-pixmap is given,
it overrides the default background-pixmap.
The background pixmap and the window must have the
same root and the same depth (or a
<span class="bold"><strong>Match</strong></span>
error results).
Any size pixmap can be used, although some sizes may be faster than others.
If background
<span class="bold"><strong>None</strong></span>
is specified, the window has no defined background.
If background
<span class="bold"><strong>ParentRelative</strong></span>
is specified, the parent's background is used,
but the window must have the same depth as the parent (or a
<span class="bold"><strong>Match</strong></span>
error results).
If the parent has background
<span class="bold"><strong>None</strong></span>,
then the window will also have background
<span class="bold"><strong>None</strong></span>.
A copy of the parent's background is not made.
The parent's background is reexamined each time the window background is
required.
If background-pixel is given, it overrides the default
background-pixmap and any background-pixmap given explicitly,
and a pixmap of undefined size filled with background-pixel is used for the
background.
Range checking is not performed on the background-pixel value;
it is simply truncated to the appropriate number of bits.
For a
<span class="bold"><strong>ParentRelative</strong></span>
background,
the background tile origin always aligns with the parent's background tile
origin.
Otherwise, the background tile origin is always the window origin.
</p><p>
When no valid contents are available for regions of a window
and the regions are either visible or the server is maintaining backing store,
the server automatically tiles the regions with the window's background
unless the window has a background of
<span class="bold"><strong>None</strong></span>.
If the background is
<span class="bold"><strong>None</strong></span>,
the previous screen contents from other windows of the same depth as the window
are simply left in place if the contents come from the parent of the window
or an inferior of the parent;
otherwise, the initial contents of the exposed regions are undefined.
Exposure events are then generated for the regions, even if the background is
<span class="bold"><strong>None</strong></span>.
</p><p>
The border tile origin is always the same as the background tile origin.
If border-pixmap is given,
it overrides the default border-pixmap.
The border pixmap and the window must have the same root
and the same depth (or a
<span class="bold"><strong>Match</strong></span>
error results).
Any size pixmap can be used,
although some sizes may be faster than others.
If
<span class="bold"><strong>CopyFromParent</strong></span>
is given, the parent's border pixmap is copied (subsequent changes to
the parent's border attribute do not affect the child),
but the window must have the same depth as the parent (or a
<span class="bold"><strong>Match</strong></span>
error results).
The pixmap might be copied by sharing the same pixmap object between the
child and parent or by making a complete copy of the pixmap contents.
If border-pixel is given,
it overrides the default border-pixmap and any border-pixmap given explicitly,
and a pixmap of undefined size filled with border-pixel is used for the border.
Range checking is not performed on the border-pixel value;
it is simply truncated to the appropriate number of bits.
</p><p>
Output to a window is always clipped to the inside of the window,
so that the border is never affected.
</p><p>
The bit-gravity defines which region of the window should be retained
if the window is resized, and win-gravity defines how the window should
be repositioned if the parent is resized (see
<a class="link" href="#requests:ConfigureWindow" title="ConfigureWindow"><span class="bold"><strong>ConfigureWindow</strong></span></a>
request).
</p><p>
A backing-store of
<span class="bold"><strong>WhenMapped</strong></span>
advises the server that maintaining contents of obscured regions
when the window is mapped would be beneficial.
A backing-store of
<span class="bold"><strong>Always</strong></span>
advises the server that maintaining contents even when the window is
unmapped would be beneficial.
In this case,
the server may generate an exposure event when the window is created.
A value of
<span class="bold"><strong>NotUseful</strong></span>
advises the server that maintaining contents is unnecessary,
although a server may still choose to maintain contents while the window
is mapped.
Note that if the server maintains contents,
then the server should maintain complete contents
not just the region within the parent boundaries,
even if the window is larger than its parent.
While the server maintains contents,
exposure events will not normally be generated,
but the server may stop maintaining contents at any time.
</p><p>
If save-under is
<span class="bold"><strong>True</strong></span>,
the server is advised that when this window is
mapped, saving the contents of windows it obscures would be beneficial.
</p><p>
When the contents of obscured regions of a window are being maintained,
regions obscured by noninferior windows are included in the
destination (and source, when the window is the source) of graphics
requests, but regions obscured by inferior windows are not included.
</p><p>
The backing-planes indicates (with bits set to 1) which bit planes
of the window hold dynamic data that must be preserved in backing-stores
and during save-unders.
The backing-pixel specifies what value to use in planes not
covered by backing-planes.
The server is free to save only the specified bit planes in the backing-store
or save-under and regenerate the remaining planes with the specified pixel
value.
Any bits beyond the specified depth of the window in these
values are simply ignored.
</p><p><a id="requests:CreateWindow:event-mask"></a>
<a id="idp26976588" class="indexterm"></a>
<a id="idp26977180" class="indexterm"></a>
The event-mask defines which events the client is interested in for
this window (or for some event types, inferiors of the window).
The do-not-propagate-mask defines which events should not be propagated to
ancestor windows when no client has the event type selected in this
window.
</p><p>
The override-redirect specifies whether map and configure requests on this
window should override a
<span class="bold"><strong>SubstructureRedirect</strong></span>
on the parent, typically to inform a window manager not to tamper with
the window.
</p><p>
The colormap specifies the colormap that best reflects the true
colors of the window.
Servers capable of supporting multiple hardware colormaps may use this
information, and window managers may use it for
<a class="link" href="#requests:InstallColormap" title="InstallColormap"><span class="bold"><strong>InstallColormap</strong></span></a>
requests.
The colormap must have the same visual type and root as the window (or a
<span class="bold"><strong>Match</strong></span>
error results).
If
<span class="bold"><strong>CopyFromParent</strong></span>
is specified,
the parent's colormap is copied (subsequent changes to the parent's
colormap attribute do not affect the child).
However, the window must have the same visual type as the parent (or a
<span class="bold"><strong>Match</strong></span>
error results), and the parent must not have a colormap of
<span class="bold"><strong>None</strong></span>
(or a
<span class="bold"><strong>Match</strong></span>
error results).
For an explanation of
<span class="bold"><strong>None</strong></span>,
see <a class="link" href="#requests:FreeColormap" title="FreeColormap"><span class="bold"><strong>FreeColormap</strong></span></a>
request.
The colormap is copied by sharing the colormap object between the child
and the parent,
not by making a complete copy of the colormap contents.
</p><p>
If a cursor is specified,
it will be used whenever the pointer is in the window.
If
<span class="bold"><strong>None</strong></span>
is specified,
the parent's cursor will be used when the pointer is in the window,
and any change in the parent's cursor will cause an immediate change
in the displayed cursor.
</p><p>
This request generates a
<a class="link" href="#events:CreateNotify" title="CreateNotify"><span class="bold"><strong>CreateNotify</strong></span></a>
event.
</p><p>
The background and border pixmaps and the cursor may be freed
immediately if no further explicit references to them are to be made.
</p><p>
Subsequent drawing into the background or border pixmap has an
undefined effect on the window state.
The server might or might not make a copy of the pixmap.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ChangeWindowAttributes"></a>ChangeWindowAttributes</h2></div></div></div><a id="idp26986348" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>value-mask</em></span>: BITMASK
      </td></tr><tr><td align="left">
<span class="emphasis"><em>value-list</em></span>: LISTofVALUE

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Access</strong></span>,
<span class="bold"><strong>Colormap</strong></span>,
<span class="bold"><strong>Cursor</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Pixmap</strong></span>,
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
The value-mask and value-list specify which attributes are to be changed.
The values and restrictions are the same as for
<a class="link" href="#requests:CreateWindow" title="CreateWindow"><span class="bold"><strong>CreateWindow</strong></span></a>.
</p><p>
Setting a new background, whether by background-pixmap or
background-pixel, overrides any previous background.
Setting a new border, whether by border-pixel or border-pixmap,
overrides any previous border.
</p><p>
Changing the background does not cause the window contents to be changed.
Setting the border or changing the background such that the
border tile origin changes causes the border to be repainted.
Changing the background of a root window to
<span class="bold"><strong>None</strong></span>
or
<span class="bold"><strong>ParentRelative</strong></span>
restores the default background pixmap.
Changing the border of a root window to
<span class="bold"><strong>CopyFromParent</strong></span>
restores the default border pixmap.
</p><p>
Changing the win-gravity does not affect the current position of the
window.
</p><p>
Changing the backing-store of an obscured window to
<span class="bold"><strong>WhenMapped</strong></span>
or
<span class="bold"><strong>Always</strong></span>
or changing the backing-planes, backing-pixel, or save-under of
a mapped window may have no immediate effect.
</p><p>
Multiple clients can select input on the same window;
their event-masks are disjoint.
When an event is generated,
it will be reported to all interested clients.
However, only one client at a time can select for
<span class="bold"><strong>SubstructureRedirect</strong></span>,
only one client at a time can select for
<span class="bold"><strong>ResizeRedirect</strong></span>,
and only one client at a time can select for
<a class="link" href="#events:ButtonPress"><span class="bold"><strong>ButtonPress</strong></span></a>.
An attempt to violate these restrictions results in an
<span class="bold"><strong>Access</strong></span>
error.
</p><p>
There is only one do-not-propagate-mask for a window, not one per
client.
</p><p>
Changing the colormap of a window (by defining a new map, not by
changing the contents of the existing map) generates a
<a class="link" href="#events:ColormapNotify" title="ColormapNotify"><span class="bold"><strong>ColormapNotify</strong></span></a>
event.
Changing the colormap of a visible window might have no immediate effect
on the screen (see
<a class="link" href="#requests:InstallColormap" title="InstallColormap"><span class="bold"><strong>InstallColormap</strong></span></a>
request).
</p><p>
Changing the cursor of a root window to
<span class="bold"><strong>None</strong></span>
restores the default cursor.
</p><p>
The order in which attributes are verified and altered is server-dependent.
If an error is generated,
a subset of the attributes may have been altered.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetWindowAttributes"></a>GetWindowAttributes</h2></div></div></div><a id="idp27005556" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

visual: VISUALID
      </td></tr><tr><td align="left">
class:
{ <span class="bold"><strong>InputOutput</strong></span>,
<span class="bold"><strong>InputOnly</strong></span>}
      </td></tr><tr><td align="left">
bit-gravity: BITGRAVITY
      </td></tr><tr><td align="left">
win-gravity: WINGRAVITY
      </td></tr><tr><td align="left">
backing-store:
{ <span class="bold"><strong>NotUseful</strong></span>,
<span class="bold"><strong>WhenMapped</strong></span>,
<span class="bold"><strong>Always</strong></span>}
      </td></tr><tr><td align="left">
backing-planes: CARD32
      </td></tr><tr><td align="left">
backing-pixel: CARD32
      </td></tr><tr><td align="left">
save-under: BOOL
      </td></tr><tr><td align="left">
colormap: COLORMAP or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
map-is-installed: BOOL
      </td></tr><tr><td align="left">
map-state:
{ <span class="bold"><strong>Unmapped</strong></span>,
<span class="bold"><strong>Unviewable</strong></span>,
<span class="bold"><strong>Viewable</strong></span>}
      </td></tr><tr><td align="left">
all-event-masks, your-event-mask: SETofEVENT
      </td></tr><tr><td align="left">
do-not-propagate-mask: SETofDEVICEEVENT
      </td></tr><tr><td align="left">
override-redirect: BOOL

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request returns the current attributes of the window.
A window is
<span class="bold"><strong>Unviewable</strong></span>
if it is mapped but some ancestor is unmapped.
All-event-masks is the inclusive-OR of all event masks selected on the window
by clients.
Your-event-mask is the event mask selected by the querying client.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:DestroyWindow"></a>DestroyWindow</h2></div></div></div><a id="idp27022860" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
If the argument window is mapped,
an
<a class="link" href="#requests:UnmapWindow" title="UnmapWindow"><span class="bold"><strong>UnmapWindow</strong></span></a>
request is performed automatically.
The window and all inferiors are then destroyed, and a
<a class="link" href="#events:DestroyNotify" title="DestroyNotify"><span class="bold"><strong>DestroyNotify</strong></span></a>
event is generated for each window.
The ordering of the
<span class="bold"><strong>DestroyNotify</strong></span>
events is such that for any given window,
<span class="bold"><strong>DestroyNotify</strong></span>
is generated on all inferiors of the window before being generated on
the window itself.
The ordering among siblings and across subhierarchies is not otherwise
constrained.
</p><p>
Normal exposure processing on formerly obscured windows is performed.
</p><p>
If the window is a root window,
this request has no effect.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:DestroySubwindows"></a>DestroySubwindows</h2></div></div></div><a id="idp27031788" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request performs a
<a class="link" href="#requests:DestroyWindow" title="DestroyWindow"><span class="bold"><strong>DestroyWindow</strong></span></a>
request on all children of the window, in bottom-to-top stacking order.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ChangeSaveSet"></a>ChangeSaveSet</h2></div></div></div><a id="idp27038548" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>mode</em></span>:
{ <span class="bold"><strong>Insert</strong></span>,
<span class="bold"><strong>Delete</strong></span>}

      </td></tr><tr><td align="left">
Errors:

<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request adds or removes the specified window from the client's
save-set.
The window must have been created by some other client (or a
<span class="bold"><strong>Match</strong></span>
error results).
For further information about the use of the save-set,
see <a class="link" href="#Connection_Close" title="Chapter 10. Connection Close">section 10</a>.
</p><p>
When windows are destroyed,
the server automatically removes them from the save-set.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ReparentWindow"></a>ReparentWindow</h2></div></div></div><a id="idp27048140" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>, <span class="emphasis"><em>parent</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>: INT16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
If the window is mapped,
an
<a class="link" href="#requests:UnmapWindow" title="UnmapWindow"><span class="bold"><strong>UnmapWindow</strong></span></a>
request is performed automatically first.
The window is then removed from its current position in the hierarchy
and is inserted as a child of the specified parent.
The x and y coordinates are relative to the parent's origin
and specify the new position of the upper-left outer corner of the
window.
The window is placed on top in the stacking order with respect
to siblings.
A
<a class="link" href="#events:ReparentNotify" title="ReparentNotify"><span class="bold"><strong>ReparentNotify</strong></span></a>
event is then generated.
The override-redirect attribute of the window is passed on in this event;
a value of
<span class="bold"><strong>True</strong></span>
indicates that a window manager should not tamper with this window.
Finally, if the window was originally mapped, a
<a class="link" href="#requests:MapWindow" title="MapWindow"><span class="bold"><strong>MapWindow</strong></span></a>
request is performed automatically.
</p><p>
Normal exposure processing on formerly obscured windows is performed.
The server might not generate exposure events for regions from the
initial unmap that are immediately obscured by the final map.
</p><p>
A
<span class="bold"><strong>Match</strong></span>
error is generated if:

The new parent is not on the same screen as the old parent.

The new parent is the window itself or an inferior of the window.

The new parent is
<span class="bold"><strong>InputOnly</strong></span>,
and the window is not.

The window has a
<span class="bold"><strong>ParentRelative</strong></span>
background, and the new parent is not the same depth as the window.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:MapWindow"></a>MapWindow</h2></div></div></div><a id="idp27061436" class="indexterm"></a><a id="idp27062004" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
If the window is already mapped, this request has no effect.
</p><p>
If the override-redirect attribute of the window is
<span class="bold"><strong>False</strong></span>
and some other client has selected
<span class="bold"><strong>SubstructureRedirect</strong></span>
on the parent, then a
<a class="link" href="#events:MapRequest" title="MapRequest"><span class="bold"><strong>MapRequest</strong></span></a>
event is generated, but the window remains unmapped.
Otherwise, the window is mapped,
and a
<a class="link" href="#events:MapNotify" title="MapNotify"><span class="bold"><strong>MapNotify</strong></span></a>
event is generated.
</p><p>
If the window is now viewable and its contents have been discarded,
the window is tiled with its background (if no background is defined,
the existing screen contents are not altered), and zero or more exposure
events are generated.
If a backing-store has been maintained while the window was unmapped,
no exposure events are generated.
If a backing-store will now be maintained,
a full-window exposure is always generated.
Otherwise, only visible regions may be reported.
Similar tiling and exposure take place for any newly viewable inferiors.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:MapSubwindows"></a>MapSubwindows</h2></div></div></div><a id="idp27071068" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request performs a
<a class="link" href="#requests:MapWindow" title="MapWindow"><span class="bold"><strong>MapWindow</strong></span></a>
request on all unmapped children of the window,
in top-to-bottom stacking order.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:UnmapWindow"></a>UnmapWindow</h2></div></div></div><a id="idp27077812" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
If the window is already unmapped, this request has no effect.
Otherwise, the window is unmapped, and an
<a class="link" href="#events:UnmapNotify" title="UnmapNotify"><span class="bold"><strong>UnmapNotify</strong></span></a>
event is generated.
Normal exposure processing on formerly obscured windows is performed.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:UnmapSubwindows"></a>UnmapSubwindows</h2></div></div></div><a id="idp27084644" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request performs an
<a class="link" href="#requests:UnmapWindow" title="UnmapWindow"><span class="bold"><strong>UnmapWindow</strong></span></a>
request on all mapped children of the window,
in bottom-to-top stacking order.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ConfigureWindow"></a>ConfigureWindow</h2></div></div></div><a id="idp27091404" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>value-mask</em></span>: BITMASK
      </td></tr><tr><td align="left">
<span class="emphasis"><em>value-list</em></span>: LISTofVALUE

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request changes the configuration of the window.
The value-mask and value-list specify which values are to be given.
The possible values are:
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Attribute</th><th align="left">Type</th></tr></thead><tbody><tr><td align="left">x</td><td align="left">INT16</td></tr><tr><td align="left">y</td><td align="left">INT16</td></tr><tr><td align="left">width</td><td align="left">CARD16</td></tr><tr><td align="left">height</td><td align="left">CARD16</td></tr><tr><td align="left">border-width</td><td align="left">CARD16</td></tr><tr><td align="left">sibling</td><td align="left">WINDOW</td></tr><tr><td align="left">stack-mode</td><td align="left">
{ <span class="bold"><strong>Above</strong></span>,
<span class="bold"><strong>Below</strong></span>,
<span class="bold"><strong>TopIf</strong></span>,
<span class="bold"><strong>BottomIf</strong></span>,
<span class="bold"><strong>Opposite</strong></span> }
      </td></tr></tbody></table></div><p>
The x and y coordinates are relative to the parent's origin
and specify the position of the upper-left outer corner of the window.
The width and height specify the inside size, not including the border, and
must be nonzero (or a
<span class="bold"><strong>Value</strong></span>
error results).
Those values not specified are taken from the existing geometry of the window.
Note that changing just the border-width leaves the outer-left corner
of the window in a fixed position but moves the absolute position of the
window's origin.
It is a
<span class="bold"><strong>Match</strong></span>
error to attempt to make the border-width of an
<span class="bold"><strong>InputOnly</strong></span>
window nonzero.
</p><p>
If the override-redirect attribute of the window is
<span class="bold"><strong>False</strong></span>
and some other client has selected
<span class="bold"><strong>SubstructureRedirect</strong></span>
on the parent, a
<a class="link" href="#events:ConfigureRequest" title="ConfigureRequest"><span class="bold"><strong>ConfigureRequest</strong></span></a>
event is generated, and no further processing is performed.
Otherwise, the following is performed:
</p><p>
If some other client has selected
<span class="bold"><strong>ResizeRedirect</strong></span>
on the window and the inside width or height of the window is being changed,
a
<a class="link" href="#events:ResizeRequest" title="ResizeRequest"><span class="bold"><strong>ResizeRequest</strong></span></a>
event is generated,
and the current inside width and height are used instead.
Note that the override-redirect attribute of the window has no effect on
<span class="bold"><strong>ResizeRedirect</strong></span>
and that
<span class="bold"><strong>SubstructureRedirect</strong></span>
on the parent has precedence over
<span class="bold"><strong>ResizeRedirect</strong></span>
on the window.
</p><p><a id="requests:ConfigureWindow:gravity"></a>
<a id="idp27115564" class="indexterm"></a>
<a id="idp27116012" class="indexterm"></a>
<a id="idp27116604" class="indexterm"></a>
The geometry of the window is changed as specified,
the window is restacked among siblings, and a
<a class="link" href="#events:ConfigureNotify" title="ConfigureNotify"><span class="bold"><strong>ConfigureNotify</strong></span></a>
event is generated if the state of the window actually changes.
If the inside width or height of the window has actually changed,
then children of the window are affected,
according to their win-gravity.
Exposure processing is performed on formerly obscured windows
(including the window itself and its inferiors if regions of them were
obscured but now are not).
Exposure processing is also performed on any new regions of the window
(as a result of increasing the width or height)
and on any regions where window contents are lost.
</p><p>
If the inside width or height of a window is not changed
but the window is moved or its border is changed,
then the contents of the window are not lost but move with the window.
Changing the inside width or height of the window causes its contents to be
moved or lost, depending on the bit-gravity of the window.
It also causes children to be reconfigured, depending on their win-gravity.
For a change of width and height of W and H,
we define the [x, y] pairs as:
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Direction</th><th align="left">Deltas</th></tr></thead><tbody><tr><td align="left">
<span class="bold"><strong>NorthWest</strong></span>
      </td><td align="left">[0, 0]</td></tr><tr><td align="left">
<span class="bold"><strong>North</strong></span>
      </td><td align="left">[W/2, 0]</td></tr><tr><td align="left">
<span class="bold"><strong>NorthEast</strong></span>
      </td><td align="left">[W, 0]</td></tr><tr><td align="left">
<span class="bold"><strong>West</strong></span>
      </td><td align="left">[0, H/2]</td></tr><tr><td align="left">
<span class="bold"><strong>Center</strong></span>
      </td><td align="left">[W/2, H/2]</td></tr><tr><td align="left">
<span class="bold"><strong>East</strong></span>
      </td><td align="left">[W, H/2]</td></tr><tr><td align="left">
<span class="bold"><strong>SouthWest</strong></span>
      </td><td align="left">[0, H]</td></tr><tr><td align="left">
<span class="bold"><strong>South</strong></span>
      </td><td align="left">[W/2, H]</td></tr><tr><td align="left">
<span class="bold"><strong>SouthEast</strong></span>
      </td><td align="left">[W, H]</td></tr></tbody></table></div><p>
When a window with one of these bit-gravities is resized,
the corresponding pair defines the change in position of each pixel in the
window.
When a window with one of these win-gravities has its parent window resized,
the corresponding pair defines the change in position
of the window within the parent.
This repositioning generates a
<a class="link" href="#events:GravityNotify" title="GravityNotify"><span class="bold"><strong>GravityNotify</strong></span></a>
event.
<span class="bold"><strong>GravityNotify</strong></span>
events are generated after the
<a class="link" href="#events:ConfigureNotify" title="ConfigureNotify"><span class="bold"><strong>ConfigureNotify</strong></span></a>
event is generated.
</p><p>
A gravity of
<span class="bold"><strong>Static</strong></span>
indicates that the contents or origin should not move relative to the origin
of the root window.
If the change in size of the window is coupled with a change
in position of [X, Y],
then for bit-gravity the change in position of each pixel is [-X, -Y] and for
win-gravity the change in position of a child when its parent is so
resized is [-X, -Y].
Note that
<span class="bold"><strong>Static</strong></span>
gravity still only takes effect when the width or height of the
window is changed, not when the window is simply moved.
</p><p>
A bit-gravity of
<span class="bold"><strong>Forget</strong></span>
indicates that the window contents are always discarded after a size change,
even if backing-store or save-under has been requested.
The window is tiled with its background (except, if no background is defined,
the existing screen contents are not altered)
and zero or more exposure events are generated.
</p><p>
The contents and borders of inferiors are not affected by their parent's
bit-gravity.
A server is permitted to ignore the specified bit-gravity and use
<span class="bold"><strong>Forget</strong></span>
instead.
</p><p>
A win-gravity of
<span class="bold"><strong>Unmap</strong></span>
is like
<span class="bold"><strong>NorthWest</strong></span>,
but the child is also unmapped when the parent is resized,
and an
<a class="link" href="#events:UnmapNotify" title="UnmapNotify"><span class="bold"><strong>UnmapNotify</strong></span></a>
event is generated.
<span class="bold"><strong>UnmapNotify</strong></span>
events are generated after the
<a class="link" href="#events:ConfigureNotify" title="ConfigureNotify"><span class="bold"><strong>ConfigureNotify</strong></span></a>
event is generated.
</p><p>
If a sibling and a stack-mode are specified,
the window is restacked as follows:
</p><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><tbody><tr><td align="left">
<span class="bold"><strong>Above</strong></span>
      </td><td align="left">
The window is placed just above the sibling.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Below</strong></span>
      </td><td align="left">
The window is placed just below the sibling.
      </td></tr><tr><td align="left">
<span class="bold"><strong>TopIf</strong></span>
      </td><td align="left">
If the sibling occludes the window,
then the window is placed at the top of the stack.
      </td></tr><tr><td align="left">
<span class="bold"><strong>BottomIf</strong></span>
      </td><td align="left">
If the window occludes the sibling,
then the window is placed at the bottom of the stack.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Opposite</strong></span>
      </td><td align="left">
If the sibling occludes the window,
then the window is placed at the top of the stack.
Otherwise, if the window occludes the sibling,
then the window is placed at the bottom of the stack.
      </td></tr></tbody></table></div><p>
If a stack-mode is specified but no sibling is specified,
the window is restacked as follows:
</p><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><tbody><tr><td align="left">
<span class="bold"><strong>Above</strong></span>
      </td><td align="left">
The window is placed at the top of the stack.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Below</strong></span>
      </td><td align="left">
The window is placed at the bottom of the stack.
      </td></tr><tr><td align="left">
<span class="bold"><strong>TopIf</strong></span>
      </td><td align="left">
If any sibling occludes the window,
then the window is placed at the top of the stack.
      </td></tr><tr><td align="left">
<span class="bold"><strong>BottomIf</strong></span>
      </td><td align="left">
If the window occludes any sibling,
then the window is placed at the bottom of the stack.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Opposite</strong></span>
      </td><td align="left">
If any sibling occludes the window,
then the window is placed at the top of the stack.
Otherwise, if the window occludes any sibling,
then the window is placed at the bottom of the stack.
      </td></tr></tbody></table></div><p>
It is a
<span class="bold"><strong>Match</strong></span>
error if a sibling is specified without a stack-mode
or if the window is not actually a sibling.
</p><p>
Note that the computations for
<span class="bold"><strong>BottomIf</strong></span>,
<span class="bold"><strong>TopIf</strong></span>,
and
<span class="bold"><strong>Opposite</strong></span>
are performed with respect to the window's final geometry (as controlled by
the other arguments to the request), not to its initial geometry.
</p><p>
Attempts to configure a root window have no effect.
</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:CirculateWindow"></a>CirculateWindow</h2></div></div></div><a id="idp27159156" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>direction</em></span>:
{ <span class="bold"><strong>RaiseLowest</strong></span>,
<span class="bold"><strong>LowerHighest</strong></span>}

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
If some other client has selected
<span class="bold"><strong>SubstructureRedirect</strong></span>
on the window, then a
<a class="link" href="#events:CirculateRequest" title="CirculateRequest"><span class="bold"><strong>CirculateRequest</strong></span></a>
event is generated, and no further processing is performed.
Otherwise, the following is performed, and then a
<a class="link" href="#events:CirculateNotify" title="CirculateNotify"><span class="bold"><strong>CirculateNotify</strong></span></a>
event is generated if the window is actually restacked.
</p><p>
For
<span class="bold"><strong>RaiseLowest</strong></span>,
<span class="bold"><strong>CirculateWindow</strong></span>
raises the lowest mapped child (if any) that is
occluded by another child to the top of the stack.
For
<span class="bold"><strong>LowerHighest</strong></span>,
<span class="bold"><strong>CirculateWindow</strong></span>
lowers the highest mapped child (if any) that occludes another child to
the bottom of the stack.
Exposure processing is performed on formerly obscured windows.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetGeometry"></a>GetGeometry</h2></div></div></div><a id="idp27170820" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

root: WINDOW
      </td></tr><tr><td align="left">
depth: CARD8
      </td></tr><tr><td align="left">
x, y: INT16
      </td></tr><tr><td align="left">
width, height, border-width: CARD16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>


      </td></tr></tbody></table></div><p>
This request returns the root and current geometry of the drawable.
The depth is the number of bits per pixel for the object.
The x, y, and border-width will always be zero for pixmaps.
For a window,
the x and y coordinates specify the upper-left outer corner of the window
relative to its parent's origin,
and the width and height specify the inside size, not including the border.
</p><p>
It is legal to pass an
<span class="bold"><strong>InputOnly</strong></span>
window as a drawable to this request.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:QueryTree"></a>QueryTree</h2></div></div></div><a id="idp27180540" class="indexterm"></a><a id="idp27181108" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

root: WINDOW
      </td></tr><tr><td align="left">
parent: WINDOW or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
children: LISTofWINDOW

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request returns the root, the parent, and the children of the window.
The children are listed in bottom-to-top stacking order.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:InternAtom"></a>InternAtom</h2></div></div></div><a id="idp27189684" class="indexterm"></a><a id="idp27190252" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>name</em></span>: STRING8
      </td></tr><tr><td align="left">
<span class="emphasis"><em>only-if-exists</em></span>: BOOL

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

atom: ATOM or
<span class="bold"><strong>None</strong></span>

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request returns the atom for the given name.
If only-if-exists is
<span class="bold"><strong>False</strong></span>,
then the atom is created if it does not exist.
The string should use the ISO Latin-1 encoding.
Uppercase and lowercase matter.
</p><p>
The lifetime of an atom is not tied to the interning client.
Atoms remain defined until server reset (see <a class="link" href="#Connection_Close" title="Chapter 10. Connection Close">section 10</a>).

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetAtomName"></a>GetAtomName</h2></div></div></div><a id="idp27200196" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>atom</em></span>: ATOM

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

name: STRING8

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Atom</strong></span>


      </td></tr></tbody></table></div><p>
This request returns the name for the given atom.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ChangeProperty"></a>ChangeProperty</h2></div></div></div><a id="idp27207556" class="indexterm"></a><a id="idp27208140" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>property</em></span>, <span class="emphasis"><em>type</em></span>: ATOM
      </td></tr><tr><td align="left">
<span class="emphasis"><em>format</em></span>: {8, 16, 32}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>mode</em></span>:
{ <span class="bold"><strong>Replace</strong></span>,
<span class="bold"><strong>Prepend</strong></span>,
<span class="bold"><strong>Append</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>data</em></span>: LISTofINT8 or LISTofINT16 or LISTofINT32

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>Atom</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request alters the property for the specified window.
The type is uninterpreted by the server.
The format specifies whether the data should be viewed as a list of 8-bit,
16-bit, or 32-bit quantities so that the server can correctly byte-swap
as necessary.
</p><p>
If the mode is
<span class="bold"><strong>Replace</strong></span>,
the previous property value is discarded.
If the mode is
<span class="bold"><strong>Prepend</strong></span>
or
<span class="bold"><strong>Append</strong></span>,
then the type and format must match the existing property value (or a
<span class="bold"><strong>Match</strong></span>
error results).
If the property is undefined,
it is treated as defined with the correct type
and format with zero-length data.
For
<span class="bold"><strong>Prepend</strong></span>,
the data is tacked on to the beginning of the existing data, and for
<span class="bold"><strong>Append</strong></span>,
it is tacked on to the end of the existing data.
</p><p>
This request generates a
<a class="link" href="#events:PropertyNotify" title="PropertyNotify"><span class="bold"><strong>PropertyNotify</strong></span></a>
event on the window.
</p><p>
The lifetime of a property is not tied to the storing client.
Properties remain until explicitly deleted, until the window is destroyed,
or until server reset (see <a class="link" href="#Connection_Close" title="Chapter 10. Connection Close">section 10</a>).
</p><p>
The maximum size of a property is server-dependent and may vary dynamically.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:DeleteProperty"></a>DeleteProperty</h2></div></div></div><a id="idp27225148" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>property</em></span>: ATOM

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Atom</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request deletes the property from the specified window
if the property exists and generates a
<a class="link" href="#events:PropertyNotify" title="PropertyNotify"><span class="bold"><strong>PropertyNotify</strong></span></a>
event on the window unless the property does not exist.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetProperty"></a>GetProperty</h2></div></div></div><a id="idp27233140" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>property</em></span>: ATOM
      </td></tr><tr><td align="left">
<span class="emphasis"><em>type</em></span>: ATOM or
<span class="bold"><strong>AnyPropertyType</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>long-offset</em></span>, <span class="emphasis"><em>long-length</em></span>: CARD32
      </td></tr><tr><td align="left">
<span class="emphasis"><em>delete</em></span>: BOOL

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

type: ATOM or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
format: {0, 8, 16, 32}
      </td></tr><tr><td align="left">
bytes-after: CARD32
      </td></tr><tr><td align="left">
value: LISTofINT8 or LISTofINT16 or LISTofINT32

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Atom</strong></span>,
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
If the specified property does not exist for the specified window,
then the return type is
<span class="bold"><strong>None</strong></span>,
the format and bytes-after are zero,
and the value is empty.
The delete argument is ignored in this case.
If the specified property exists but its type does not match the specified type,
then the return type is the actual type of the property,
the format is the actual format of the property (never zero),
the bytes-after is the length of the property in bytes
(even if the format is 16 or 32),
and the value is empty.
The delete argument is ignored in this case.
If the specified property exists and either
<span class="bold"><strong>AnyPropertyType</strong></span>
is specified or the specified type matches the actual type of the property,
then the return type is the actual type of the property,
the format is the actual format of the property (never zero),
and the bytes-after and value are as follows, given:
</p><pre class="literallayout">
	N = actual length of the stored property in bytes
	    (even if the format is 16 or 32)
	I = 4 * long-offset
	T = N - I
	L = MINIMUM(T, 4 * long-length)
	A = N - (I + L)
</pre><p>
</p><p>
The returned value starts at byte index I in the property (indexing from 0),
and its length in bytes is L.
However, it is a
<span class="bold"><strong>Value</strong></span>
error if long-offset is given such that L is negative.
The value of bytes-after is A,
giving the number of trailing unread bytes in the stored
property.
If delete is
<span class="bold"><strong>True</strong></span>
and the bytes-after is zero,
the property is also deleted from the window,
and a
<a class="link" href="#events:PropertyNotify" title="PropertyNotify"><span class="bold"><strong>PropertyNotify</strong></span></a>
event is generated on the window.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:RotateProperties"></a>RotateProperties</h2></div></div></div><a id="idp27250940" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>delta</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>properties</em></span>: LISTofATOM

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Atom</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
If the property names in the list are viewed as being numbered starting
from zero, and there are N property names in the list,
then the value associated with property name I becomes the value
associated with property name (I + delta) mod N, for all I from zero to N - 1.
The effect is to rotate the states by delta places around the virtual ring
of property names (right for positive delta, left for negative delta).
</p><p>
If delta mod N is nonzero,
a
<a class="link" href="#events:PropertyNotify" title="PropertyNotify"><span class="bold"><strong>PropertyNotify</strong></span></a>
event is generated for each property in the order listed.
</p><p>
If an atom occurs more than once in the list or no property with that
name is defined for the window,
a
<span class="bold"><strong>Match</strong></span>
error is generated.
If an
<span class="bold"><strong>Atom</strong></span>
or
<span class="bold"><strong>Match</strong></span>
error is generated, no properties are changed.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ListProperties"></a>ListProperties</h2></div></div></div><a id="idp27262140" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

atoms: LISTofATOM

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request returns the atoms of properties currently defined on the window.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:SetSelectionOwner"></a>SetSelectionOwner</h2></div></div></div><a id="idp27269540" class="indexterm"></a><a id="idp27270124" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>selection</em></span>: ATOM
      </td></tr><tr><td align="left">
<span class="emphasis"><em>owner</em></span>: WINDOW or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>time</em></span>: TIMESTAMP or
<span class="bold"><strong>CurrentTime</strong></span>

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Atom</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request changes the owner, owner window,
and last-change time of the specified selection.
This request has no effect if the specified time is earlier
than the current last-change time of the specified selection or is
later than the current server time.
Otherwise, the last-change time is set to the specified time
with
<span class="bold"><strong>CurrentTime</strong></span>
replaced by the current server time.
If the owner window is specified as
<span class="bold"><strong>None</strong></span>,
then the owner of the selection becomes
<span class="bold"><strong>None</strong></span>
(that is, no owner).
Otherwise, the owner of the selection becomes the client executing the request.
If the new owner (whether a client or
<span class="bold"><strong>None</strong></span>)
is not the same as the current owner
and the current owner is not
<span class="bold"><strong>None</strong></span>,
then the current owner is sent a
<a class="link" href="#events:SelectionClear" title="SelectionClear"><span class="bold"><strong>SelectionClear</strong></span></a>
event.
</p><p>
If the client that is the owner of a selection is later terminated
(that is, its connection is closed) or if the owner window it has
specified in the request is later destroyed,
then the owner of the selection automatically reverts to
<span class="bold"><strong>None</strong></span>,
but the last-change time is not affected.
</p><p>
The selection atom is uninterpreted by the server.
The owner window is returned by the
<a class="link" href="#requests:GetSelectionOwner" title="GetSelectionOwner"><span class="bold"><strong>GetSelectionOwner</strong></span></a>
request and is reported in
<a class="link" href="#events:SelectionRequest" title="SelectionRequest"><span class="bold"><strong>SelectionRequest</strong></span></a>
and
<a class="link" href="#events:SelectionClear" title="SelectionClear"><span class="bold"><strong>SelectionClear</strong></span></a>
events.
</p><p>
Selections are global to the server.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetSelectionOwner"></a>GetSelectionOwner</h2></div></div></div><a id="idp27285012" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>selection</em></span>: ATOM

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

owner: WINDOW or
<span class="bold"><strong>None</strong></span>

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Atom</strong></span>


      </td></tr></tbody></table></div><p>
This request returns the current owner window of the specified selection,
if any.
If
<span class="bold"><strong>None</strong></span>
is returned, then there is no owner for the selection.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ConvertSelection"></a>ConvertSelection</h2></div></div></div><a id="idp27293188" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>selection</em></span>, <span class="emphasis"><em>target</em></span>: ATOM
      </td></tr><tr><td align="left">
<span class="emphasis"><em>property</em></span>: ATOM or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>requestor</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>time</em></span>: TIMESTAMP or
<span class="bold"><strong>CurrentTime</strong></span>

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Atom</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
If the specified selection has an owner,
the server sends a
<a class="link" href="#events:SelectionRequest" title="SelectionRequest"><span class="bold"><strong>SelectionRequest</strong></span></a>
event to that owner.
If no owner for the specified selection exists,
the server generates a
<a class="link" href="#events:SelectionNotify" title="SelectionNotify"><span class="bold"><strong>SelectionNotify</strong></span></a>
event to the requestor with property
<span class="bold"><strong>None</strong></span>.
The arguments are passed on unchanged in either of the events.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:SendEvent"></a>SendEvent</h2></div></div></div><a id="idp27304916" class="indexterm"></a><a id="idp27305484" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>destination</em></span>: WINDOW or
<span class="bold"><strong>PointerWindow</strong></span>
or
<span class="bold"><strong>InputFocus</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>propagate</em></span>: BOOL
      </td></tr><tr><td align="left">
<span class="emphasis"><em>event-mask</em></span>: SETofEVENT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>event</em></span>: &lt;normal-event-format&gt;

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
If
<span class="bold"><strong>PointerWindow</strong></span>
is specified,
destination is replaced with the window that the pointer is in.
If
<span class="bold"><strong>InputFocus</strong></span>
is specified and the focus window contains the pointer,
destination is replaced with the window that the pointer is in.
Otherwise, destination is replaced with the focus window.
</p><p>
If the event-mask is the empty set,
then the event is sent to the client that created the destination window.
If that client no longer exists, no event is sent.
</p><p>
If propagate is
<span class="bold"><strong>False</strong></span>,
then the event is sent to every client selecting
on destination any of the event types in event-mask.
</p><p>
If propagate is
<span class="bold"><strong>True</strong></span>
and no clients have selected on destination any
of the event types in event-mask,
then destination is replaced with the
closest ancestor of destination for which some client has selected a
type in event-mask and no intervening window has that type in its
do-not-propagate-mask.
If no such window exists or if the window is an ancestor of the focus window
and
<span class="bold"><strong>InputFocus</strong></span>
was originally specified as the destination,
then the event is not sent to any clients.
Otherwise, the event is reported to every client selecting on the final
destination any of the types specified in event-mask.
</p><p>
The event code must be one of the core events or one of the events
defined by an extension (or a
<span class="bold"><strong>Value</strong></span>
error results) so that the server can correctly byte-swap the
contents as necessary.
The contents of the event are otherwise unaltered and unchecked
by the server except to force on the most significant bit of the event code
and to set the sequence number in the event correctly.
</p><p>
Active grabs are ignored for this request.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GrabPointer"></a>GrabPointer</h2></div></div></div><a id="idp27320004" class="indexterm"></a><a id="idp27320580" class="indexterm"></a><a id="idp27321164" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>grab-window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>owner-events</em></span>: BOOL
      </td></tr><tr><td align="left">
<span class="emphasis"><em>event-mask</em></span>: SETofPOINTEREVENT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>pointer-mode</em></span>, <span class="emphasis"><em>keyboard-mode</em></span>:
{ <span class="bold"><strong>Synchronous</strong></span>,
<span class="bold"><strong>Asynchronous</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>confine-to</em></span>: WINDOW or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>cursor</em></span>: CURSOR or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>time</em></span>: TIMESTAMP or
<span class="bold"><strong>CurrentTime</strong></span>

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

status:
{ <span class="bold"><strong>Success</strong></span>,
<span class="bold"><strong>AlreadyGrabbed</strong></span>,
<span class="bold"><strong>Frozen</strong></span>,
<span class="bold"><strong>InvalidTime</strong></span>,
<span class="bold"><strong>NotViewable</strong></span>}

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Cursor</strong></span>,
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request actively grabs control of the pointer.
Further pointer events are only reported to the grabbing client.
The request overrides any active pointer grab by this client.
</p><p>
If owner-events is
<span class="bold"><strong>False</strong></span>,
all generated pointer events are reported with respect to grab-window
and are only reported if selected by event-mask.
If owner-events is
<span class="bold"><strong>True</strong></span>
and a generated pointer event would normally be reported to this client,
it is reported normally.
Otherwise, the event is reported with respect to the grab-window and is
only reported if selected by event-mask.
For either value of owner-events,
unreported events are simply discarded.
</p><p>
If pointer-mode is
<span class="bold"><strong>Asynchronous</strong></span>,
pointer event processing continues normally.
If the pointer is currently frozen by this client,
then processing of pointer events is resumed.
If pointer-mode is
<span class="bold"><strong>Synchronous</strong></span>,
the state of the pointer (as seen by means of the protocol) appears to freeze,
and no further pointer events are generated by the server until the
grabbing client issues a releasing
<a class="link" href="#requests:AllowEvents" title="AllowEvents"><span class="bold"><strong>AllowEvents</strong></span></a>
request or until the pointer grab is released.
Actual pointer changes are not lost while the pointer is frozen.
They are simply queued for later processing.
</p><p>
If keyboard-mode is
<span class="bold"><strong>Asynchronous</strong></span>,
keyboard event processing is unaffected by activation of the grab.
If keyboard-mode is
<span class="bold"><strong>Synchronous</strong></span>,
the state of the keyboard (as seen by means of the protocol) appears to freeze,
and no further keyboard events are generated by the server until the grabbing
client issues a releasing
<span class="bold"><strong>AllowEvents</strong></span>
request or until the pointer grab is released.
Actual keyboard changes are not lost while the keyboard is frozen.
They are simply queued for later processing.
</p><p>
If a cursor is specified,
then it is displayed regardless of what window the pointer is in.
If no cursor is specified,
then when the pointer is in grab-window or one of its subwindows,
the normal cursor for that window is displayed.
Otherwise, the cursor for grab-window is displayed.
</p><p>
If a confine-to window is specified,
then the pointer will be restricted to stay contained in that window.
The confine-to window need have no relationship to the grab-window.
If the pointer is not initially in the confine-to window,
then it is warped automatically to the closest edge
(and enter/leave events are generated normally) just before the grab activates.
If the confine-to window is subsequently reconfigured,
the pointer will be warped automatically as necessary to
keep it contained in the window.
</p><p>
This request generates
<a class="link" href="#events:EnterNotify"><span class="bold"><strong>EnterNotify</strong></span></a>
and
<a class="link" href="#events:LeaveNotify"><span class="bold"><strong>LeaveNotify</strong></span></a>
events.
</p><p>
The request fails with status
<span class="bold"><strong>AlreadyGrabbed</strong></span>
if the pointer is actively grabbed by some other client.
The request fails with status
<span class="bold"><strong>Frozen</strong></span>
if the pointer is frozen by an active grab of another client.
The request fails with status
<span class="bold"><strong>NotViewable</strong></span>
if grab-window or confine-to window is not viewable
or if the confine-to window lies completely outside the boundaries
of the root window.
The request fails with status
<span class="bold"><strong>InvalidTime</strong></span>
if the specified time is earlier than the last-pointer-grab time or later than
the current server time.
Otherwise, the last-pointer-grab time is set to the specified time, with
<span class="bold"><strong>CurrentTime</strong></span>
replaced by the current server time.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:UngrabPointer"></a>UngrabPointer</h2></div></div></div><a id="idp27348612" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>time</em></span>: TIMESTAMP or
<span class="bold"><strong>CurrentTime</strong></span>


      </td></tr></tbody></table></div><p>
This request releases the pointer if this client has it actively grabbed (from
either
<a class="link" href="#requests:GrabPointer" title="GrabPointer"><span class="bold"><strong>GrabPointer</strong></span></a>
or
<a class="link" href="#requests:GrabButton" title="GrabButton"><span class="bold"><strong>GrabButton</strong></span></a>
or from a normal button press) and releases any queued events.
The request has no effect if the specified time is earlier than
the last-pointer-grab time or is later than the current server time.
</p><p>
This request generates
<a class="link" href="#events:EnterNotify"><span class="bold"><strong>EnterNotify</strong></span></a>
and
<a class="link" href="#events:LeaveNotify"><span class="bold"><strong>LeaveNotify</strong></span></a>
events.
</p><p>
An
<a class="link" href="#requests:UngrabPointer" title="UngrabPointer"><span class="bold"><strong>UngrabPointer</strong></span></a>
request is performed automatically if the event window or
confine-to window for an active pointer grab becomes not viewable
or if window reconfiguration causes the confine-to window to lie
completely outside the boundaries of the root window.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GrabButton"></a>GrabButton</h2></div></div></div><a id="idp27357772" class="indexterm"></a><a id="idp27358340" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>modifiers</em></span>: SETofKEYMASK or
<span class="bold"><strong>AnyModifier</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>button</em></span>: BUTTON or
<span class="bold"><strong>AnyButton</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>grab-window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>owner-events</em></span>: BOOL
      </td></tr><tr><td align="left">
<span class="emphasis"><em>event-mask</em></span>: SETofPOINTEREVENT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>pointer-mode</em></span>, <span class="emphasis"><em>keyboard-mode</em></span>:
{ <span class="bold"><strong>Synchronous</strong></span>,
<span class="bold"><strong>Asynchronous</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>confine-to</em></span>: WINDOW or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>cursor</em></span>: CURSOR or
<span class="bold"><strong>None</strong></span>

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Access</strong></span>,
<span class="bold"><strong>Cursor</strong></span>,
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request establishes a passive grab.
<a id="idp27372964" class="indexterm"></a>
In the future,
the pointer is actively grabbed as described in
<a class="link" href="#requests:GrabPointer" title="GrabPointer"><span class="bold"><strong>GrabPointer</strong></span></a>,
the last-pointer-grab time is set to the time at which the button was
pressed (as transmitted in the
<a class="link" href="#events:ButtonPress"><span class="bold"><strong>ButtonPress</strong></span></a>
event), and the
<span class="bold"><strong>ButtonPress</strong></span>
event is reported if all of the following conditions are true:

The pointer is not grabbed and the specified button is logically pressed
when the specified modifier keys are logically down,
and no other buttons or modifier keys are logically down.

The grab-window contains the pointer.

The confine-to window (if any) is viewable.

A passive grab on the same button/key combination does not exist
on any ancestor of grab-window.
</p><p>
The interpretation of the remaining arguments is the same as for
<a class="link" href="#requests:GrabPointer" title="GrabPointer"><span class="bold"><strong>GrabPointer</strong></span></a>.
The active grab is terminated automatically when
the logical state of the pointer has all buttons released,
independent of the logical state of modifier keys.
Note that the logical state of a device (as seen by means of the protocol)
may lag the physical state if device event processing is frozen.
</p><p>
This request overrides all previous passive grabs by the same client on
the same button/key combinations on the same window.
A modifier of
<span class="bold"><strong>AnyModifier</strong></span>
is equivalent to issuing the request for all possible modifier combinations
(including the combination of no modifiers).
It is not required that all specified modifiers have currently assigned
keycodes.
A button of
<span class="bold"><strong>AnyButton</strong></span>
is equivalent to issuing the request for all possible buttons.
Otherwise, it is not required that the button specified currently be assigned
to a physical button.
</p><p>
An
<span class="bold"><strong>Access</strong></span>
error is generated if some other client has already issued a
<span class="bold"><strong>GrabButton</strong></span>
request with the same button/key combination on the same window.
When using
<span class="bold"><strong>AnyModifier</strong></span>
or
<span class="bold"><strong>AnyButton</strong></span>,
the request fails completely (no grabs are established), and an
<span class="bold"><strong>Access</strong></span>
error is generated if there is a conflicting grab for any combination.
The request has no effect on an active grab.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:UngrabButton"></a>UngrabButton</h2></div></div></div><a id="idp27382012" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>modifiers</em></span>: SETofKEYMASK or
<span class="bold"><strong>AnyModifier</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>button</em></span>: BUTTON or
<span class="bold"><strong>AnyButton</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>grab-window</em></span>: WINDOW

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request releases the passive button/key combination
on the specified window if it was grabbed by this client.
A modifiers argument of
<span class="bold"><strong>AnyModifier</strong></span>
is equivalent to issuing the request for all possible modifier
combinations (including the combination of no modifiers).
A button of
<span class="bold"><strong>AnyButton</strong></span>
is equivalent to issuing the request for all possible buttons.
The request has no effect on an active grab.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ChangeActivePointerGrab"></a>ChangeActivePointerGrab</h2></div></div></div><a id="idp27391924" class="indexterm"></a><a id="idp27392524" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>event-mask</em></span>: SETofPOINTEREVENT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>cursor</em></span>: CURSOR or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>time</em></span>: TIMESTAMP or
<span class="bold"><strong>CurrentTime</strong></span>

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Cursor</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request changes the specified dynamic parameters if the pointer is
actively grabbed by the client and the specified time is no earlier than the
last-pointer-grab time and no later than the current server time.
The interpretation of event-mask and cursor are the same as in
<a class="link" href="#requests:GrabPointer" title="GrabPointer"><span class="bold"><strong>GrabPointer</strong></span></a>.
This request has no effect on the parameters of any passive grabs established
with
<a class="link" href="#requests:GrabButton" title="GrabButton"><span class="bold"><strong>GrabButton</strong></span></a>.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GrabKeyboard"></a>GrabKeyboard</h2></div></div></div><a id="idp27402852" class="indexterm"></a><a id="idp27403436" class="indexterm"></a><a id="idp27404020" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>grab-window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>owner-events</em></span>: BOOL
      </td></tr><tr><td align="left">
<span class="emphasis"><em>pointer-mode</em></span>, <span class="emphasis"><em>keyboard-mode</em></span>:
{ <span class="bold"><strong>Synchronous</strong></span>,
<span class="bold"><strong>Asynchronous</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>time</em></span>: TIMESTAMP or
<span class="bold"><strong>CurrentTime</strong></span>

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

status:
{ <span class="bold"><strong>Success</strong></span>,
<span class="bold"><strong>AlreadyGrabbed</strong></span>,
<span class="bold"><strong>Frozen</strong></span>,
<span class="bold"><strong>InvalidTime</strong></span>,
<span class="bold"><strong>NotViewable</strong></span>}

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request actively grabs control of the keyboard.
Further key events are reported only to the grabbing client.
This request overrides any active keyboard grab by this client.
</p><p>
If owner-events is
<span class="bold"><strong>False</strong></span>,
all generated key events are reported with respect to grab-window.
If owner-events is
<span class="bold"><strong>True</strong></span>
and if a generated key event would normally be reported to this client,
it is reported normally.
Otherwise, the event is reported with respect to the grab-window.
Both
<a class="link" href="#events:KeyPress"><span class="bold"><strong>KeyPress</strong></span></a>
and
<a class="link" href="#events:KeyRelease"><span class="bold"><strong>KeyRelease</strong></span></a>
events are always reported,
independent of any event selection made by the client.
</p><p>
If keyboard-mode is
<span class="bold"><strong>Asynchronous</strong></span>,
keyboard event processing continues normally.
If the keyboard is currently frozen by this client,
then processing of keyboard events is resumed.
If keyboard-mode is
<span class="bold"><strong>Synchronous</strong></span>,
the state of the keyboard (as seen by means of the protocol) appears to freeze.
No further keyboard events are generated by the server until the
grabbing client issues a releasing
<a class="link" href="#requests:AllowEvents" title="AllowEvents"><span class="bold"><strong>AllowEvents</strong></span></a>
request or until the keyboard grab is released.
Actual keyboard changes are not lost while the keyboard is frozen.
They are simply queued for later processing.
</p><p>
If pointer-mode is
<span class="bold"><strong>Asynchronous</strong></span>,
pointer event processing is unaffected by activation of the grab.
If pointer-mode is
<span class="bold"><strong>Synchronous</strong></span>,
the state of the pointer (as seen by means of the protocol) appears to freeze.
No further pointer events are generated by the server
until the grabbing client issues a releasing
<a class="link" href="#requests:AllowEvents" title="AllowEvents"><span class="bold"><strong>AllowEvents</strong></span></a>
request or until the keyboard grab is released.
Actual pointer changes are not lost while the pointer is frozen.
They are simply queued for later processing.
</p><p>
This request generates
<a class="link" href="#events:FocusIn"><span class="bold"><strong>FocusIn</strong></span></a>
and
<a class="link" href="#events:FocusOut"><span class="bold"><strong>FocusOut</strong></span></a>
events.
</p><p>
The request fails with status
<span class="bold"><strong>AlreadyGrabbed</strong></span>
if the keyboard is actively grabbed by some other client.
The request fails with status
<span class="bold"><strong>Frozen</strong></span>
if the keyboard is frozen by an active grab of another client.
The request fails with status
<span class="bold"><strong>NotViewable</strong></span>
if grab-window is not viewable.
The request fails with status
<span class="bold"><strong>InvalidTime</strong></span>
if the specified time is earlier than the last-keyboard-grab time
or later than the current server time.
Otherwise, the last-keyboard-grab time is set to the specified time with
<span class="bold"><strong>CurrentTime</strong></span>
replaced by the current server time.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:UngrabKeyboard"></a>UngrabKeyboard</h2></div></div></div><a id="idp27427852" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>time</em></span>: TIMESTAMP or
<span class="bold"><strong>CurrentTime</strong></span>


      </td></tr></tbody></table></div><p>
This request releases the keyboard if this client has it actively grabbed
(as a result of either
<a class="link" href="#requests:GrabKeyboard" title="GrabKeyboard"><span class="bold"><strong>GrabKeyboard</strong></span></a>
or
<a class="link" href="#requests:GrabKey" title="GrabKey"><span class="bold"><strong>GrabKey</strong></span></a>)
and releases any queued events.
The request has no effect if the specified time is earlier than the
last-keyboard-grab time or is later than the current server time.
</p><p>
This request generates
<a class="link" href="#events:FocusIn"><span class="bold"><strong>FocusIn</strong></span></a>
and
<a class="link" href="#events:FocusOut"><span class="bold"><strong>FocusOut</strong></span></a>
events.
</p><p>
An
<a class="link" href="#requests:UngrabKeyboard" title="UngrabKeyboard"><span class="bold"><strong>UngrabKeyboard</strong></span></a>
is performed automatically if the event window for an active keyboard grab
becomes not viewable.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GrabKey"></a>GrabKey</h2></div></div></div><a id="idp27436844" class="indexterm"></a><a id="idp27437412" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>key</em></span>: KEYCODE or
<span class="bold"><strong>AnyKey</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>modifiers</em></span>: SETofKEYMASK or
<span class="bold"><strong>AnyModifier</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>grab-window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>owner-events</em></span>: BOOL
      </td></tr><tr><td align="left">
<span class="emphasis"><em>pointer-mode</em></span>, <span class="emphasis"><em>keyboard-mode</em></span>:
{ <span class="bold"><strong>Synchronous</strong></span>,
<span class="bold"><strong>Asynchronous</strong></span>}

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Access</strong></span>,
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request establishes a passive grab on the keyboard.
<a id="idp27448516" class="indexterm"></a>
In the future,
the keyboard is actively grabbed as described in
<a class="link" href="#requests:GrabKeyboard" title="GrabKeyboard"><span class="bold"><strong>GrabKeyboard</strong></span></a>,
the last-keyboard-grab time is set to the time at which the key was pressed
(as transmitted in the
<a class="link" href="#events:KeyPress"><span class="bold"><strong>KeyPress</strong></span></a>
event), and the
<span class="bold"><strong>KeyPress</strong></span>
event is reported if all of the following conditions are true:

The keyboard is not grabbed and the specified key
(which can itself be a modifier key) is logically pressed
when the specified modifier keys are logically down,
and no other modifier keys are logically down.

Either the grab-window is an ancestor of (or is) the focus window,
or the grab-window is a descendent of the focus window and contains the pointer.

A passive grab on the same key combination does not exist
on any ancestor of grab-window.
</p><p>
The interpretation of the remaining arguments is the same as for
<a class="link" href="#requests:GrabKeyboard" title="GrabKeyboard"><span class="bold"><strong>GrabKeyboard</strong></span></a>.
The active grab is terminated automatically when the logical state
of the keyboard has the specified key released,
independent of the logical state of modifier keys.
Note that the logical state of a device (as seen by means of the protocol)
may lag the physical state if device event processing is frozen.
</p><p>
This request overrides all previous passive grabs by the same client
on the same key combinations on the same window.
A modifier of
<span class="bold"><strong>AnyModifier</strong></span>
is equivalent to issuing the request for all possible modifier combinations
(including the combination of no modifiers).
It is not required that all modifiers specified have
currently assigned keycodes.
A key of
<span class="bold"><strong>AnyKey</strong></span>
is equivalent to issuing the request for all possible keycodes.
Otherwise, the key must be in the range specified by min-keycode
and max-keycode in the connection setup (or a
<span class="bold"><strong>Value</strong></span>
error results).
</p><p>
An
<span class="bold"><strong>Access</strong></span>
error is generated if some other client has issued a
<span class="bold"><strong>GrabKey</strong></span>
with the same key combination on the same window.
When using
<span class="bold"><strong>AnyModifier</strong></span>
or
<span class="bold"><strong>AnyKey</strong></span>,
the request fails completely (no grabs are established),
and an
<span class="bold"><strong>Access</strong></span>
error is generated if there is a conflicting grab for any combination.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:UngrabKey"></a>UngrabKey</h2></div></div></div><a id="idp27457796" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>key</em></span>: KEYCODE or
<span class="bold"><strong>AnyKey</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>modifiers</em></span>: SETofKEYMASK or
<span class="bold"><strong>AnyModifier</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>grab-window</em></span>: WINDOW

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request releases the key combination on the specified window
if it was grabbed by this client.
A modifiers argument of
<span class="bold"><strong>AnyModifier</strong></span>
is equivalent to issuing the request for all possible modifier combinations
(including the combination of no modifiers).
A key of
<span class="bold"><strong>AnyKey</strong></span>
is equivalent to issuing the request for all possible keycodes.
This request has no effect on an active grab.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:AllowEvents"></a>AllowEvents</h2></div></div></div><a id="idp27467644" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>mode</em></span>:
{ <span class="bold"><strong>AsyncPointer</strong></span>,
<span class="bold"><strong>SyncPointer</strong></span>,
<span class="bold"><strong>ReplayPointer</strong></span>,
<span class="bold"><strong>AsyncKeyboard</strong></span>,
      </td></tr><tr><td align="left">
<span class="bold"><strong>SyncKeyboard</strong></span>,
<span class="bold"><strong>ReplayKeyboard</strong></span>,
<span class="bold"><strong>AsyncBoth</strong></span>,
<span class="bold"><strong>SyncBoth</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>time</em></span>: TIMESTAMP or
<span class="bold"><strong>CurrentTime</strong></span>

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request releases some queued events if the client has caused a device to
freeze.
The request has no effect if the specified time is earlier
than the last-grab time of the most recent active grab for the client
or if the specified time is later than the current server time.
</p><p>
For
<span class="bold"><strong>AsyncPointer</strong></span>,
if the pointer is frozen by the client,
pointer event processing continues normally.
If the pointer is frozen twice by the client on behalf of two separate grabs,
<span class="bold"><strong>AsyncPointer</strong></span>
thaws for both.
<span class="bold"><strong>AsyncPointer</strong></span>
has no effect if the pointer is not frozen by the client,
but the pointer need not be grabbed by the client.
</p><p>
For
<span class="bold"><strong>SyncPointer</strong></span>,
if the pointer is frozen and actively grabbed by the client,
pointer event processing continues normally until the next
<a class="link" href="#events:ButtonPress"><span class="bold"><strong>ButtonPress</strong></span></a>
or
<a class="link" href="#events:ButtonRelease"><span class="bold"><strong>ButtonRelease</strong></span></a>
event is reported to the client,
at which time the pointer again appears to freeze.
However, if the reported event causes the pointer grab to be released,
then the pointer does not freeze.
<span class="bold"><strong>SyncPointer</strong></span>
has no effect if the pointer is not frozen by the
client or if the pointer is not grabbed by the client.
</p><p>
For
<span class="bold"><strong>ReplayPointer</strong></span>,
if the pointer is actively grabbed by the client and
is frozen as the result of an event having been sent to the client
(either from the activation of a
<a class="link" href="#requests:GrabButton" title="GrabButton"><span class="bold"><strong>GrabButton</strong></span></a>
or from a previous
<span class="bold"><strong>AllowEvents</strong></span>
with mode
<span class="bold"><strong>SyncPointer</strong></span>
but not from a
<a class="link" href="#requests:GrabPointer" title="GrabPointer"><span class="bold"><strong>GrabPointer</strong></span></a>),
then the pointer grab is released and that event is completely reprocessed,
this time ignoring any passive grabs at or above (towards the root)
the grab-window of the grab just released.
The request has no effect if the pointer is not grabbed by the client
or if the pointer is not frozen as the result of an event.
</p><p>
For
<span class="bold"><strong>AsyncKeyboard</strong></span>,
if the keyboard is frozen by the client,
keyboard event processing continues normally.
If the keyboard is frozen twice by the client on behalf of two separate grabs,
<span class="bold"><strong>AsyncKeyboard</strong></span>
thaws for both.
<span class="bold"><strong>AsyncKeyboard</strong></span>
has no effect if the keyboard is not frozen by the client,
but the keyboard need not be grabbed by the client.
</p><p>
For
<span class="bold"><strong>SyncKeyboard</strong></span>,
if the keyboard is frozen and actively grabbed by the client,
keyboard event processing continues normally until the next
<a class="link" href="#events:KeyPress"><span class="bold"><strong>KeyPress</strong></span></a>
or
<a class="link" href="#events:KeyRelease"><span class="bold"><strong>KeyRelease</strong></span></a>
event is reported to the client,
at which time the keyboard again appears to freeze.
However, if the reported event causes the keyboard grab to be released,
then the keyboard does not freeze.
<span class="bold"><strong>SyncKeyboard</strong></span>
has no effect if the keyboard is not frozen by the client or
if the keyboard is not grabbed by the client.
</p><p>
For
<span class="bold"><strong>ReplayKeyboard</strong></span>,
if the keyboard is actively grabbed by the client
and is frozen as the result of an event having been sent to the client
(either from the activation of a
<a class="link" href="#requests:GrabKey" title="GrabKey"><span class="bold"><strong>GrabKey</strong></span></a>
or from a previous
<span class="bold"><strong>AllowEvents</strong></span>
with mode
<span class="bold"><strong>SyncKeyboard</strong></span>
but not from a
<a class="link" href="#requests:GrabKeyboard" title="GrabKeyboard"><span class="bold"><strong>GrabKeyboard</strong></span></a>),
then the keyboard grab is released and that event is completely reprocessed,
this time ignoring any passive grabs at or above (towards the root)
the grab-window of the grab just released.
The request has no effect if the keyboard is not grabbed by the client
or if the keyboard is not frozen as the result of an event.
</p><p>
For
<span class="bold"><strong>SyncBoth</strong></span>,
if both pointer and keyboard are frozen by the client,
event processing (for both devices) continues normally until the next
<a class="link" href="#events:ButtonPress"><span class="bold"><strong>ButtonPress</strong></span></a>,
<a class="link" href="#events:ButtonRelease"><span class="bold"><strong>ButtonRelease</strong></span></a>,
<a class="link" href="#events:KeyPress"><span class="bold"><strong>KeyPress</strong></span></a>,
or
<a class="link" href="#events:KeyRelease"><span class="bold"><strong>KeyRelease</strong></span></a>
event is reported to the client for a grabbed device
(button event for the pointer, key event for the keyboard),
at which time the devices again appear to freeze.
However, if the reported event causes the grab to be released,
then the devices do not freeze (but if the other device is still
grabbed, then a subsequent event for it will still cause both devices
to freeze).
<span class="bold"><strong>SyncBoth</strong></span>
has no effect unless both pointer and keyboard are frozen by the client.
If the pointer or keyboard is frozen twice by the client on behalf
of two separate grabs,
<span class="bold"><strong>SyncBoth</strong></span>
thaws for both (but a subsequent freeze for
<span class="bold"><strong>SyncBoth</strong></span>
will only freeze each device once).
</p><p>
For
<span class="bold"><strong>AsyncBoth</strong></span>,
if the pointer and the keyboard are frozen by the client,
event processing for both devices continues normally.
If a device is frozen twice by the client on behalf of two separate grabs,
<span class="bold"><strong>AsyncBoth</strong></span>
thaws for both.
<span class="bold"><strong>AsyncBoth</strong></span>
has no effect unless both pointer and keyboard are frozen by the client.
</p><p>
<span class="bold"><strong>AsyncPointer</strong></span>,
<span class="bold"><strong>SyncPointer</strong></span>,
and
<span class="bold"><strong>ReplayPointer</strong></span>
have no effect on processing of keyboard events.
<span class="bold"><strong>AsyncKeyboard</strong></span>,
<span class="bold"><strong>SyncKeyboard</strong></span>,
and
<span class="bold"><strong>ReplayKeyboard</strong></span>
have no effect on processing of pointer events.
</p><p>
It is possible for both a pointer grab and a keyboard grab to be active
simultaneously (by the same or different clients).
When a device is frozen on behalf of either grab,
no event processing is performed for the device.
It is possible for a single device to be frozen because of both grabs.
In this case, the freeze must be released on behalf of both grabs
before events can again be processed.
If a device is frozen twice by a single client, then a single
<span class="bold"><strong>AllowEvents</strong></span>
releases both.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GrabServer"></a>GrabServer</h2></div></div></div><a id="idp27502404" class="indexterm"></a><a id="idp27502972" class="indexterm"></a><p>
This request disables processing of requests and close-downs on all
connections other than the one this request arrived on.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:UngrabServer"></a>UngrabServer</h2></div></div></div><a id="idp27504660" class="indexterm"></a><p>
This request restarts processing of requests and close-downs
on other connections.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:QueryPointer"></a>QueryPointer</h2></div></div></div><a id="idp27506316" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

root: WINDOW
      </td></tr><tr><td align="left">
child: WINDOW or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
same-screen: BOOL
      </td></tr><tr><td align="left">
root-x, root-y, win-x, win-y: INT16
      </td></tr><tr><td align="left">
mask: SETofKEYBUTMASK

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
The root window the pointer is logically on and the pointer coordinates
relative to the root's origin are returned.
If same-screen is
<span class="bold"><strong>False</strong></span>,
then the pointer is not on the same screen as the argument window,
child is
<span class="bold"><strong>None</strong></span>,
and win-x and win-y are zero.
If same-screen is
<span class="bold"><strong>True</strong></span>,
then win-x and win-y are the pointer coordinates relative to the
argument window's origin, and child is the child containing the
pointer, if any.
The current logical state of the modifier keys and the buttons
are also returned.
Note that the logical state of a device (as seen by means of the protocol)
may lag the physical state if device event processing is frozen.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetMotionEvents"></a>GetMotionEvents</h2></div></div></div><a id="idp27517556" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>start</em></span>,
<span class="emphasis"><em>stop</em></span>: TIMESTAMP or
<span class="bold"><strong>CurrentTime</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>window</em></span>: WINDOW

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

events: LISTofTIMECOORD

      </td></tr><tr><td align="left">
where:
      </td></tr><tr><td align="left">
TIMECOORD:	[x, y: INT16
      </td></tr><tr><td align="left">
      time: TIMESTAMP]


      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request returns all events in the motion history buffer that fall
between the specified start and stop times (inclusive)
and that have coordinates that lie within (including borders)
the specified window at its present placement.
The x and y coordinates are reported relative to the origin of the window.
</p><p>
If the start time is later than the stop time or if the start time is
in the future, no events are returned.
If the stop time is in the future, it is equivalent to specifying
<span class="bold"><strong>CurrentTime</strong></span>.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:TranslateCoordinates"></a>TranslateCoordinates</h2></div></div></div><a id="idp27529212" class="indexterm"></a><a id="idp27529812" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>src-window</em></span>, <span class="emphasis"><em>dst-window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>src-x</em></span>, <span class="emphasis"><em>src-y</em></span>: INT16

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

same-screen: BOOL
      </td></tr><tr><td align="left">
child: WINDOW or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
dst-x, dst-y: INT16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
The src-x and src-y coordinates are taken relative to src-window's
origin and are returned as dst-x and dst-y coordinates relative to
dst-window's origin.
If same-screen is
<span class="bold"><strong>False</strong></span>,
then src-window and dst-window are on different screens,
and dst-x and dst-y are zero.
If the coordinates are contained in a mapped child of dst-window,
then that child is returned.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:WarpPointer"></a>WarpPointer</h2></div></div></div><a id="idp27540668" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>src-window</em></span>: WINDOW or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>dst-window</em></span>: WINDOW or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>src-x</em></span>, <span class="emphasis"><em>src-y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>src-width</em></span>, <span class="emphasis"><em>src-height</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>dst-x</em></span>, <span class="emphasis"><em>dst-y</em></span>: INT16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
If dst-window is
<span class="bold"><strong>None</strong></span>,
this request moves the pointer by offsets [dst-x, dst-y]
relative to the current position of the pointer.
If dst-window is a window,
this request moves the pointer to [dst-x, dst-y] relative to dst-window's
origin.
However, if src-window is not
<span class="bold"><strong>None</strong></span>,
the move only takes place if src-window contains the pointer
and the pointer is contained in the specified rectangle of src-window.
</p><p>
The src-x and src-y coordinates are relative to src-window's origin.
If src-height is zero,
it is replaced with the current height of src-window minus src-y.
If src-width is zero,
it is replaced with the current width of src-window minus src-x.
</p><p>
This request cannot be used to move the pointer outside the confine-to
window of an active pointer grab.
An attempt will only move the pointer as far as the closest edge
of the confine-to window.
</p><p>
This request will generate events just as if the user had instantaneously
moved the pointer.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:SetInputFocus"></a>SetInputFocus</h2></div></div></div><a id="idp27554108" class="indexterm"></a><a id="idp27554692" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>focus</em></span>: WINDOW or
<span class="bold"><strong>PointerRoot</strong></span>
or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>revert-to</em></span>:
{ <span class="bold"><strong>Parent</strong></span>,
<span class="bold"><strong>PointerRoot</strong></span>,
<span class="bold"><strong>None</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>time</em></span>: TIMESTAMP or
<span class="bold"><strong>CurrentTime</strong></span>

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request changes the input focus and the last-focus-change time.
The request has no effect if the specified time is earlier than the current
last-focus-change time or is later than the current server time.
Otherwise, the last-focus-change time is set to the specified time
with
<span class="bold"><strong>CurrentTime</strong></span>
replaced by the current server time.
</p><p>
If
<span class="bold"><strong>None</strong></span>
is specified as the focus,
all keyboard events are discarded until a new focus window is set.
In this case, the revert-to argument is ignored.
</p><p>
If a window is specified as the focus,
it becomes the keyboard's focus window.
If a generated keyboard event would normally be reported to
this window or one of its inferiors, the event is reported normally.
Otherwise, the event is reported with respect to the focus window.
</p><p>
If
<span class="bold"><strong>PointerRoot</strong></span>
is specified as the focus,
the focus window is dynamically taken to be the root window of whatever screen
the pointer is on at each keyboard event.
In this case,
the revert-to argument is ignored.
</p><p>
This request generates
<a class="link" href="#events:FocusIn"><span class="bold"><strong>FocusIn</strong></span></a>
and
<a class="link" href="#events:FocusOut"><span class="bold"><strong>FocusOut</strong></span></a>
events.
</p><p>
The specified focus window must be viewable at the time of the request (or a
<span class="bold"><strong>Match</strong></span>
error results).
If the focus window later becomes not viewable,
the new focus window depends on the revert-to argument.
If revert-to is
<span class="bold"><strong>Parent</strong></span>,
the focus reverts to the parent (or the closest viewable ancestor)
and the new revert-to value is taken to be
<span class="bold"><strong>None</strong></span>.
If revert-to is
<span class="bold"><strong>PointerRoot</strong></span>
or
<span class="bold"><strong>None</strong></span>,
the focus reverts to that value.
When the focus reverts,
<a class="link" href="#events:FocusIn"><span class="bold"><strong>FocusIn</strong></span></a>
and
<a class="link" href="#events:FocusOut"><span class="bold"><strong>FocusOut</strong></span></a>
events are generated,
but the last-focus-change time is not affected.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetInputFocus"></a>GetInputFocus</h2></div></div></div><a id="idp27572772" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

focus: WINDOW or
<span class="bold"><strong>PointerRoot</strong></span>
or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
revert-to:
{ <span class="bold"><strong>Parent</strong></span>,
<span class="bold"><strong>PointerRoot</strong></span>,
<span class="bold"><strong>None</strong></span>}


      </td></tr></tbody></table></div><p>
This request returns the current focus state.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:QueryKeymap"></a>QueryKeymap</h2></div></div></div><a id="idp27580132" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

keys: LISTofCARD8


      </td></tr></tbody></table></div><p>
This request returns a bit vector for the logical state of the keyboard.
Each bit set to 1 indicates that the corresponding key is currently pressed.
The vector is represented as 32 bytes.
Byte N (from 0) contains the bits for keys 8N to 8N + 7
with the least significant bit in the byte representing key 8N.
Note that the logical state of a device (as seen by means of the protocol)
may lag the physical state if device event processing is frozen.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:OpenFont"></a>OpenFont</h2></div></div></div><a id="idp27585620" class="indexterm"></a><a id="idp27586188" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>fid</em></span>: FONT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>name</em></span>: STRING8

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>IDChoice</strong></span>,
<span class="bold"><strong>Name</strong></span>


      </td></tr></tbody></table></div><p>
This request loads the specified font, if necessary,
and associates identifier fid with it.
The font name should use the ISO Latin-1 encoding,
and uppercase and lowercase do not matter.
When the characters <span class="quote">“<span class="quote">?</span>”</span> and <span class="quote">“<span class="quote">*</span>”</span> are used in a font name, a
pattern match is performed and any matching font is used.
In the pattern,
the <span class="quote">“<span class="quote">?</span>”</span> character (octal value 77) will match any single character,
and the <span class="quote">“<span class="quote">*</span>”</span> character (octal value 52) will match any number
of characters.
A structured format for font names is specified in the
X.Org standard <em class="citetitle">X Logical Font Description Conventions</em>.
</p><p>
Fonts are not associated with a particular screen
and can be stored as a component of any graphics context.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:CloseFont"></a>CloseFont</h2></div></div></div><a id="idp27595620" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>font</em></span>: FONT

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Font</strong></span>


      </td></tr></tbody></table></div><p>
This request deletes the association between the resource ID and the font.
The font itself will be freed when no other resource references it.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:QueryFont"></a>QueryFont</h2></div></div></div><a id="idp27601820" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><tbody><tr><td colspan="3" align="left">

<span class="emphasis"><em>font</em></span>: FONTABLE

      </td></tr><tr><td colspan="3" align="left">
   ▶
      </td></tr><tr><td colspan="3" align="left">

font-info: FONTINFO
      </td></tr><tr><td colspan="3" align="left">
char-infos: LISTofCHARINFO

      </td></tr><tr><td rowspan="19" align="left" valign="top">

where:
      </td><td class="auto-generated"> </td><td class="auto-generated"> </td></tr><tr><td rowspan="10" align="left" valign="top">
FONTINFO:
      </td><td align="left">
[draw-direction:
{ <span class="bold"><strong>LeftToRight</strong></span>,
<span class="bold"><strong>RightToLeft</strong></span> }
      </td></tr><tr><td align="left">
min-char-or-byte2, max-char-or-byte2: CARD16
      </td></tr><tr><td align="left">
min-byte1, max-byte1: CARD8
      </td></tr><tr><td align="left">
all-chars-exist: BOOL
      </td></tr><tr><td align="left">
default-char: CARD16
      </td></tr><tr><td align="left">
min-bounds: CHARINFO
      </td></tr><tr><td align="left">
max-bounds: CHARINFO
      </td></tr><tr><td align="left">
font-ascent: INT16
      </td></tr><tr><td align="left">
font-descent: INT16
      </td></tr><tr><td align="left">
properties: LISTofFONTPROP]
      </td></tr><tr><td rowspan="2" align="left" valign="top">
FONTPROP:
      </td><td align="left">
[name: ATOM
      </td></tr><tr><td align="left">
value: &lt;32-bit-value&gt;]
      </td></tr><tr><td rowspan="6" align="left" valign="top">
CHARINFO:
      </td><td align="left">
[left-side-bearing: INT16
      </td></tr><tr><td align="left">
right-side-bearing: INT16
      </td></tr><tr><td align="left">
character-width: INT16
      </td></tr><tr><td align="left">
ascent: INT16
      </td></tr><tr><td align="left">
descent: INT16
      </td></tr><tr><td align="left">
attributes: CARD16]
      </td></tr><tr><td colspan="3" align="left">

Errors:
<span class="bold"><strong>Font</strong></span>


      </td></tr></tbody></table></div><p>
This request returns logical information about a font.
If a gcontext is given for font,
the currently contained font is used.
</p><p>
The draw-direction is just a hint
and indicates whether most char-infos have a positive,
<span class="bold"><strong>LeftToRight</strong></span>,
or a negative,
<span class="bold"><strong>RightToLeft</strong></span>,
character-width metric.
The core protocol defines no support for vertical text.
</p><p>
If min-byte1 and max-byte1 are both zero,
then min-char-or-byte2 specifies the linear character index corresponding
to the first element of char-infos,
and max-char-or-byte2 specifies the linear character index of the last element.
If either min-byte1 or max-byte1 are nonzero,
then both min-char-or-byte2 and max-char-or-byte2 will be less than 256,
and the 2-byte character index values corresponding to char-infos element N
(counting from 0) are:
</p><pre class="literallayout">
	byte1 = N/D + min-byte1
	byte2 = N\\D + min-char-or-byte2
</pre><p>
</p><p>
where:
</p><pre class="literallayout">
	D = max-char-or-byte2 - min-char-or-byte2 + 1
	/ = integer division
	\\ = integer modulus
</pre><p>
</p><p>
If char-infos has length zero,
then min-bounds and max-bounds will be identical,
and the effective char-infos is one filled with this char-info, of length:
</p><pre class="literallayout">
	L = D * (max-byte1 - min-byte1 + 1)
</pre><p>
</p><p>
That is,
all glyphs in the specified linear or matrix range have the same information,
as given by min-bounds (and max-bounds).
If all-chars-exist is
<span class="bold"><strong>True</strong></span>,
then all characters in char-infos have nonzero bounding boxes.
</p><p>
The default-char specifies the character that will be used when an
undefined or nonexistent character is used.
Note that default-char is a CARD16, not CHAR2B.
For a font using 2-byte matrix format,
the default-char has byte1 in the most significant byte
and byte2 in the least significant byte.
If the default-char itself specifies an undefined or nonexistent character,
then no printing is performed for an undefined or nonexistent character.
</p><p>
The min-bounds and max-bounds contain the minimum and maximum values of
each individual CHARINFO component over all char-infos (ignoring
nonexistent characters).
The bounding box of the font (that is, the
smallest rectangle enclosing the shape obtained by superimposing all
characters at the same origin [x,y]) has its upper-left coordinate at:
</p><pre class="literallayout">
	[x + min-bounds.left-side-bearing, y - max-bounds.ascent]
</pre><p>
with a width of:
</p><pre class="literallayout">
	max-bounds.right-side-bearing - min-bounds.left-side-bearing
</pre><p>
</p><p>
and a height of:
</p><pre class="literallayout">
	max-bounds.ascent + max-bounds.descent
</pre><p>
</p><p>
The font-ascent is the logical extent of the font above the baseline
and is used for determining line spacing.
Specific characters may extend beyond this.
The font-descent is the logical extent of the font at or below the baseline
and is used for determining line spacing.
Specific characters may extend beyond this.
If the baseline is at Y-coordinate y,
then the logical extent of the font is inclusive
between the Y-coordinate values (y - font-ascent) and (y + font-descent - 1).
</p><p>
A font is not guaranteed to have any properties.
The interpretation of the property value (for example, INT32, CARD32)
must be derived from <span class="emphasis"><em>a priori</em></span> knowledge of the property.
A basic set of font properties is specified in the X.Org
standard <em class="citetitle">X Logical Font Description Conventions</em>.
</p><p>
For a character origin at [x,y],
the bounding box of a character (that is,
the smallest rectangle enclosing the character's shape), described in
terms of CHARINFO components, is a rectangle with its upper-left corner at:
</p><pre class="literallayout">
	[x + left-side-bearing, y - ascent]
</pre><p>
</p><p>
with a width of:
</p><pre class="literallayout">
	right-side-bearing - left-side-bearing
</pre><p>
</p><p>
and a height of:
</p><pre class="literallayout">
	ascent + descent
</pre><p>
</p><p>
and the origin for the next character is defined to be:
</p><pre class="literallayout">
	[x + character-width, y]
</pre><p>
</p><p>
Note that the baseline is logically viewed as being just below
nondescending characters (when descent is zero, only pixels with
Y-coordinates less than y are drawn) and that the origin is logically
viewed as being coincident with the left edge of a nonkerned character
(when left-side-bearing is zero, no pixels with X-coordinate less than
x are drawn).
</p><p>
Note that CHARINFO metric values can be negative.
</p><p>
A nonexistent character is represented with all CHARINFO components
zero.
</p><p>
The interpretation of the per-character attributes field is
server-dependent.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:QueryTextExtents"></a>QueryTextExtents</h2></div></div></div><a id="idp27636348" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>font</em></span>: FONTABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>string</em></span>: STRING16

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

draw-direction:
{ <span class="bold"><strong>LeftToRight</strong></span>,
<span class="bold"><strong>RightToLeft</strong></span>}
      </td></tr><tr><td align="left">
font-ascent: INT16
      </td></tr><tr><td align="left">
font-descent: INT16
      </td></tr><tr><td align="left">
overall-ascent: INT16
      </td></tr><tr><td align="left">
overall-descent: INT16
      </td></tr><tr><td align="left">
overall-width: INT32
      </td></tr><tr><td align="left">
overall-left: INT32
      </td></tr><tr><td align="left">
overall-right: INT32

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Font</strong></span>


      </td></tr></tbody></table></div><p>
This request returns the logical extents of the specified string of characters
in the specified font.
If a gcontext is given for font,
the currently contained font is used.
The draw-direction, font-ascent, and font-descent are the same as
described in
<a class="link" href="#requests:QueryFont" title="QueryFont"><span class="bold"><strong>QueryFont</strong></span></a>.
The overall-ascent is the maximum of the ascent metrics of all characters
in the string, and the overall-descent is the maximum of the descent metrics.
The overall-width is the sum of the character-width metrics of all characters
in the string.
For each character in the string,
let W be the sum of the character-width metrics of all characters preceding it
in the string,
let L be the left-side-bearing metric of the character plus W,
and let R be the right-side-bearing metric of the character plus W.
The overall-left is the minimum L of all characters in the string,
and the overall-right is the maximum R.
</p><p>
For fonts defined with linear indexing rather than 2-byte matrix indexing,
the server will interpret each CHAR2B as a 16-bit number that
has been transmitted most significant byte first (that is, byte1 of the
CHAR2B is taken as the most significant byte).
</p><p>
Characters with all zero metrics are ignored.
If the font has no defined default-char,
then undefined characters in the string are also ignored.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ListFonts"></a>ListFonts</h2></div></div></div><a id="idp27650724" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>pattern</em></span>: STRING8
      </td></tr><tr><td align="left">
<span class="emphasis"><em>max-names</em></span>: CARD16

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

names: LISTofSTRING8


      </td></tr></tbody></table></div><p>
This request returns a list
of available font names (as controlled by the font search path; see
<a class="link" href="#requests:SetFontPath" title="SetFontPath"><span class="bold"><strong>SetFontPath</strong></span></a>
request)
that match the pattern.
At most, max-names names will be returned.
The pattern should use the ISO Latin-1 encoding,
and uppercase and lowercase do not matter.
In the pattern,
the <span class="quote">“<span class="quote">?</span>”</span> character (octal value 77) will match any single character,
and the <span class="quote">“<span class="quote">*</span>”</span> character (octal value 52) will match any number
of characters.
The returned names are in lowercase.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ListFontsWithInfo"></a>ListFontsWithInfo</h2></div></div></div><a id="idp27659188" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>pattern</em></span>: STRING8
      </td></tr><tr><td align="left">
<span class="emphasis"><em>max-names</em></span>: CARD16

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

name: STRING8
      </td></tr><tr><td align="left">
info FONTINFO
      </td></tr><tr><td align="left">
replies-hint: CARD32

      </td></tr><tr><td align="left">

where:

      </td></tr><tr><td align="left">

FONTINFO: &lt;same type definition as in
<a class="link" href="#requests:QueryFont" title="QueryFont"><span class="bold"><strong>QueryFont</strong></span></a>&gt;

      </td></tr></tbody></table></div><p>
This request is similar to
<a class="link" href="#requests:ListFonts" title="ListFonts"><span class="bold"><strong>ListFonts</strong></span></a>,
but it also returns information about each font.
The information returned for each font is identical to what
<a class="link" href="#requests:QueryFont" title="QueryFont"><span class="bold"><strong>QueryFont</strong></span></a>
would return except that the per-character metrics are not returned.
Note that this request can generate multiple replies.
With each reply,
replies-hint may provide an indication of how many more fonts will be returned.
This number is a hint only and may be larger or smaller than
the number of fonts actually returned.
A zero value does not guarantee that no more fonts will be returned.
After the font replies,
a reply with a zero-length name is sent to indicate the end of the reply
sequence.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:SetFontPath"></a>SetFontPath</h2></div></div></div><a id="idp27670860" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>path</em></span>: LISTofSTRING8

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request defines the search path for font lookup.
There is only one search path per server, not one per client.
The interpretation of the strings is operating-system-dependent,
but the strings are intended to specify directories to be searched in the
order listed.
</p><p>
Setting the path to the empty list restores the default path defined
for the server.
</p><p>
As a side effect of executing this request,
the server is guaranteed to flush all cached information about fonts
for which there currently are no explicit resource IDs allocated.
</p><p>
The meaning of an error from this request is system specific.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetFontPath"></a>GetFontPath</h2></div></div></div><a id="idp27678196" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

path: LISTofSTRING8


      </td></tr></tbody></table></div><p>
This request returns the current search path for fonts.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:CreatePixmap"></a>CreatePixmap</h2></div></div></div><a id="idp27683316" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>pid</em></span>: PIXMAP
      </td></tr><tr><td align="left">
<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>depth</em></span>: CARD8
      </td></tr><tr><td align="left">
<span class="emphasis"><em>width</em></span>, <span class="emphasis"><em>height</em></span>: CARD16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>IDChoice</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request creates a pixmap and assigns the identifier pid to it.
The width and height must be nonzero (or a
<span class="bold"><strong>Value</strong></span>
error results).
The depth must be one of the depths supported by the root of the specified
drawable (or a
<span class="bold"><strong>Value</strong></span>
error results).
The initial contents of the pixmap are undefined.
</p><p>
It is legal to pass an
<span class="bold"><strong>InputOnly</strong></span>
window as a drawable to this request.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:FreePixmap"></a>FreePixmap</h2></div></div></div><a id="idp27694892" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>pixmap</em></span>: PIXMAP

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Pixmap</strong></span>


      </td></tr></tbody></table></div><p>
This request deletes the association between the resource ID and the pixmap.
The pixmap storage will be freed when no other resource references it.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:CreateGC"></a>CreateGC</h2></div></div></div><a id="idp27701100" class="indexterm"></a><a id="idp27701668" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cid</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>value-mask</em></span>: BITMASK
      </td></tr><tr><td align="left">
<span class="emphasis"><em>value-list</em></span>: LISTofVALUE

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>Font</strong></span>,
<span class="bold"><strong>IDChoice</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Pixmap</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request creates a graphics context
and assigns the identifier cid to it.
The gcontext can be used with any destination drawable having the same root
and depth as the specified drawable;
use with other drawables results in a
<span class="bold"><strong>Match</strong></span>
error.
</p><p>
The value-mask and value-list specify which components are to be
explicitly initialized.
The context components are:
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Component</th><th align="left">Type</th></tr></thead><tbody><tr><td align="left">function</td><td align="left">
{ <span class="bold"><strong>Clear</strong></span>,
<span class="bold"><strong>And</strong></span>,
<span class="bold"><strong>AndReverse</strong></span>,
<span class="bold"><strong>Copy</strong></span>,
<span class="bold"><strong>AndInverted</strong></span>,
<span class="bold"><strong>NoOp</strong></span>,
<span class="bold"><strong>Xor</strong></span>,
<span class="bold"><strong>Or</strong></span>,
<span class="bold"><strong>Nor</strong></span>,
<span class="bold"><strong>Equiv</strong></span>,
<span class="bold"><strong>Invert</strong></span>,
<span class="bold"><strong>OrReverse</strong></span>,
<span class="bold"><strong>CopyInverted</strong></span>,
<span class="bold"><strong>OrInverted</strong></span>,
<span class="bold"><strong>Nand</strong></span>,
<span class="bold"><strong>Set</strong></span> }
      </td></tr><tr><td align="left">plane-mask</td><td align="left">CARD32</td></tr><tr><td align="left">foreground</td><td align="left">CARD32</td></tr><tr><td align="left">background</td><td align="left">CARD32</td></tr><tr><td align="left">line-width</td><td align="left">CARD16</td></tr><tr><td align="left">line-style</td><td align="left">
{ <span class="bold"><strong>Solid</strong></span>,
<span class="bold"><strong>OnOffDash</strong></span>,
<span class="bold"><strong>DoubleDash</strong></span> }
      </td></tr><tr><td align="left">cap-style</td><td align="left">
{ <span class="bold"><strong>NotLast</strong></span>,
<span class="bold"><strong>Butt</strong></span>,
<span class="bold"><strong>Round</strong></span>,
<span class="bold"><strong>Projecting</strong></span> }
      </td></tr><tr><td align="left">join-style</td><td align="left">
{ <span class="bold"><strong>Miter</strong></span>,
<span class="bold"><strong>Round</strong></span>,
<span class="bold"><strong>Bevel</strong></span> }
      </td></tr><tr><td align="left">fill-style</td><td align="left">
{ <span class="bold"><strong>Solid</strong></span>,
<span class="bold"><strong>Tiled</strong></span>,
<span class="bold"><strong>OpaqueStippled</strong></span>,
<span class="bold"><strong>Stippled</strong></span> }
      </td></tr><tr><td align="left">fill-rule</td><td align="left">
{ <span class="bold"><strong>EvenOdd</strong></span>,
<span class="bold"><strong>Winding</strong></span> }
      </td></tr><tr><td align="left">arc-mode</td><td align="left">
{ <span class="bold"><strong>Chord</strong></span>,
<span class="bold"><strong>PieSlice</strong></span> }
      </td></tr><tr><td align="left">tile</td><td align="left">PIXMAP</td></tr><tr><td align="left">stipple</td><td align="left">PIXMAP</td></tr><tr><td align="left">tile-stipple-x-origin</td><td align="left">INT16</td></tr><tr><td align="left">tile-stipple-y-origin</td><td align="left">INT16</td></tr><tr><td align="left">font</td><td align="left">FONT</td></tr><tr><td align="left">subwindow-mode</td><td align="left">
{ <span class="bold"><strong>ClipByChildren</strong></span>,
<span class="bold"><strong>IncludeInferiors</strong></span> }
      </td></tr><tr><td align="left">graphics-exposures</td><td align="left">BOOL</td></tr><tr><td align="left">clip-x-origin</td><td align="left">INT16</td></tr><tr><td align="left">clip-y-origin</td><td align="left">INT16</td></tr><tr><td align="left">clip-mask</td><td align="left">
PIXMAP or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">dash-offset</td><td align="left">CARD16</td></tr><tr><td align="left">dashes</td><td align="left">CARD8</td></tr></tbody></table></div><p><a id="requests:CreateGC:plane-mask"></a>
<a id="idp27744796" class="indexterm"></a>
In graphics operations,
given a source and destination pixel,
the result is computed bitwise on corresponding bits of the pixels;
that is, a Boolean operation is performed in each bit plane.
The plane-mask restricts the operation to a subset of planes,
so the result is:
</p><pre class="literallayout">
	((src FUNC dst) AND plane-mask) OR (dst AND (NOT plane-mask))
</pre><p>
Range checking is not performed on the values for foreground, background,
or plane-mask.
They are simply truncated to the appropriate number of bits.
</p><p><a id="requests:CreateGC:function"></a>
The meanings of the functions are:
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Function</th><th align="left">Operation</th></tr></thead><tbody><tr><td align="left">
<span class="bold"><strong>Clear</strong></span>
      </td><td align="left">0</td></tr><tr><td align="left">
<span class="bold"><strong>And</strong></span>
      </td><td align="left">src AND dst</td></tr><tr><td align="left">
<span class="bold"><strong>AndReverse</strong></span>
      </td><td align="left">src AND (NOT dst)</td></tr><tr><td align="left">
<span class="bold"><strong>Copy</strong></span>
      </td><td align="left">src</td></tr><tr><td align="left">
<span class="bold"><strong>AndInverted</strong></span>
      </td><td align="left">(NOT src) AND dst</td></tr><tr><td align="left">
<span class="bold"><strong>NoOp</strong></span>
      </td><td align="left">dst</td></tr><tr><td align="left">
<span class="bold"><strong>Xor</strong></span>
      </td><td align="left">src XOR dst</td></tr><tr><td align="left">
<span class="bold"><strong>Or</strong></span>
      </td><td align="left">src OR dst</td></tr><tr><td align="left">
<span class="bold"><strong>Nor</strong></span>
      </td><td align="left">(NOT src) AND (NOT dst)</td></tr><tr><td align="left">
<span class="bold"><strong>Equiv</strong></span>
      </td><td align="left">(NOT src) XOR dst</td></tr><tr><td align="left">
<span class="bold"><strong>Invert</strong></span>
      </td><td align="left">NOT dst</td></tr><tr><td align="left">
<span class="bold"><strong>OrReverse</strong></span>
      </td><td align="left">src OR (NOT dst)</td></tr><tr><td align="left">
<span class="bold"><strong>CopyInverted</strong></span>
      </td><td align="left">NOT src</td></tr><tr><td align="left">
<span class="bold"><strong>OrInverted</strong></span>
      </td><td align="left">(NOT src) OR dst</td></tr><tr><td align="left">
<span class="bold"><strong>Nand</strong></span>
      </td><td align="left">(NOT src) OR (NOT dst)</td></tr><tr><td align="left">
<span class="bold"><strong>Set</strong></span>
      </td><td align="left">1</td></tr></tbody></table></div><p><a id="requests:CreateGC:line-width"></a>
<a id="idp27767212" class="indexterm"></a>
The line-width is measured in pixels and can be greater than or equal to
one, a wide line, or the special value zero, a thin line.
</p><p>
Wide lines are drawn centered on the path described by the graphics request.
Unless otherwise specified by the join or cap style,
the bounding box of a wide line with endpoints [x1, y1], [x2, y2] and
width w is a rectangle with vertices at the following real coordinates:
</p><pre class="literallayout">
	[x1-(w*sn/2), y1+(w*cs/2)], [x1+(w*sn/2), y1-(w*cs/2)],
	[x2-(w*sn/2), y2+(w*cs/2)], [x2+(w*sn/2), y2-(w*cs/2)]
</pre><p>
The sn is the sine of the angle of the line and cs is the cosine of
the angle of the line.
A pixel is part of the line (and hence drawn) if the center of the pixel
is fully inside the bounding box, which is viewed as having infinitely thin
edges.
If the center of the pixel is exactly on the bounding box,
it is part of the line if and only if the interior is immediately to its right
(x increasing direction).
Pixels with centers on a horizontal edge are a special case and are part of
the line if and only if the interior or the boundary is immediately below
(y increasing direction) and if the interior or the boundary is immediately
to the right (x increasing direction).
Note that this description is a mathematical model describing the pixels
that are drawn for a wide line and does not imply that trigonometry is required
to implement such a model.
Real or fixed point arithmetic is recommended for computing the corners of the
line endpoints for lines greater than one pixel in width.
</p><p>
Thin lines (zero line-width) are nominally one pixel wide lines drawn using an
unspecified, device-dependent algorithm.
There are only two constraints on this algorithm.
First, if a line is drawn unclipped from [x1,y1] to [x2,y2]
and another line is drawn unclipped from [x1+dx,y1+dy] to [x2+dx,y2+dy],
then a point [x,y] is touched by drawing the first line if
and only if the point [x+dx,y+dy] is touched by drawing the second line.
Second, the effective set of points comprising a line cannot be affected
by clipping.
Thus, a point is touched in a clipped line if and only if the point lies
inside the clipping region and the point would be touched by the line
when drawn unclipped.
</p><p>
Note that a wide line drawn from [x1,y1] to [x2,y2] always draws the
same pixels as a wide line drawn from [x2,y2] to [x1,y1], not counting
cap-style and join-style.
Implementors are encouraged to make this property true for thin lines,
but it is not required.
A line-width of zero may differ from a line-width of one in which pixels
are drawn.
In general,
drawing a thin line will be faster than drawing a wide line of width one,
but thin lines may not mix well aesthetically with wide lines
because of the different drawing algorithms.
If it is desirable to obtain precise and uniform results across all displays,
a client should always use a line-width of one, rather than a line-width of
zero.
</p><p><a id="requests:CreateGC:line-style"></a>
The line-style defines which sections of a line are drawn:
</p><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><tbody><tr><td align="left">
<span class="bold"><strong>Solid</strong></span>
      </td><td align="left">
The full path of the line is drawn.
      </td></tr><tr><td align="left">
<span class="bold"><strong>DoubleDash</strong></span>
      </td><td align="left">
The full path of the line is drawn,
but the even dashes are filled differently than the odd dashes
(see fill-style), with
<span class="bold"><strong>Butt</strong></span>
cap-style used where even and odd dashes meet.
      </td></tr><tr><td align="left">
<span class="bold"><strong>OnOffDash</strong></span>
      </td><td align="left">
Only the even dashes are drawn,
and cap-style applies to all internal ends of the individual dashes
(except
<span class="bold"><strong>NotLast</strong></span>
is treated as
<span class="bold"><strong>Butt</strong></span>).
      </td></tr></tbody></table></div><p><a id="requests:CreateGC:cap-style"></a>
The cap-style defines how the endpoints of a path are drawn:
</p><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><tbody><tr><td align="left">
<span class="bold"><strong>NotLast</strong></span>
      </td><td align="left">
The result is equivalent to
<span class="bold"><strong>Butt</strong></span>,
except that for a line-width of zero the final endpoint is not drawn.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Butt</strong></span>
      </td><td align="left">
The result is square at the endpoint (perpendicular to the slope of the
line) with no projection beyond.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Round</strong></span>
      </td><td align="left">
The result is a circular arc with its diameter equal to the line-width,
centered on the endpoint; it is equivalent to
<span class="bold"><strong>Butt</strong></span>
for line-width zero.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Projecting</strong></span>
      </td><td align="left">
The result is square at the end, but the path continues beyond the
endpoint for a distance equal to half the line-width;
it is equivalent to
<span class="bold"><strong>Butt</strong></span>
for line-width zero.
      </td></tr></tbody></table></div><p><a id="requests:CreateGC:join-style"></a>
The join-style defines how corners are drawn for wide lines:
</p><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><tbody><tr><td align="left">
<span class="bold"><strong>Miter</strong></span>
      </td><td align="left">
The outer edges of the two lines extend to meet at an angle.
However, if the angle is less than 11 degrees, a
<span class="bold"><strong>Bevel</strong></span>
join-style is used instead.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Round</strong></span>
      </td><td align="left">
The result is a circular arc with a diameter equal to the line-width,
centered on the joinpoint.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Bevel</strong></span>
      </td><td align="left">
The result is
<span class="bold"><strong>Butt</strong></span>
endpoint styles, and then the triangular notch is filled.
      </td></tr></tbody></table></div><p>
For a line with coincident endpoints (x1=x2, y1=y2), when the cap-style
is applied to both endpoints, the semantics depends on the line-width
and the cap-style:
</p><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><tbody><tr><td align="left">
<span class="bold"><strong>NotLast</strong></span>
      </td><td align="left">thin</td><td align="left">
This is device-dependent, but the desired effect is that nothing is drawn.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Butt</strong></span>
      </td><td align="left">thin</td><td align="left">
This is device-dependent, but the desired effect is that
a single pixel is drawn.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Round</strong></span>
      </td><td align="left">thin</td><td align="left">
This is the same as
<span class="bold"><strong>Butt</strong></span>/thin.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Projecting</strong></span>
      </td><td align="left">thin</td><td align="left">
This is the same as
<span class="bold"><strong>Butt</strong></span>/thin.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Butt</strong></span>
      </td><td align="left">wide</td><td align="left">
Nothing is drawn.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Round</strong></span>
      </td><td align="left">wide</td><td align="left">
The closed path is a circle, centered at the endpoint and
with a diameter equal to the line-width.
      </td></tr><tr><td align="left">
<span class="bold"><strong>Projecting</strong></span>
      </td><td align="left">wide</td><td align="left">
The closed path is a square, aligned with the coordinate axes,
centered at the endpoint and with sides equal to the line-width.
      </td></tr></tbody></table></div><p>
For a line with coincident endpoints (x1=x2, y1=y2),
when the join-style is applied at one or both endpoints,
the effect is as if the line was removed from the overall path.
However, if the total path consists of (or is reduced to) a single point
joined with itself,
the effect is the same as when the cap-style is applied at both endpoints.
</p><p>
The tile/stipple represents an infinite two-dimensional plane
with the tile/stipple
replicated in all dimensions.  When that plane is superimposed on
the drawable for use in a graphics operation, the upper-left corner
of some instance of the tile/stipple is at the coordinates within
the drawable specified by the tile/stipple origin.
The tile/stipple and clip origins are interpreted relative to the
origin of whatever destination drawable is specified in a graphics
request.
</p><p>
The tile pixmap must have the same root and depth as the gcontext (or a
<span class="bold"><strong>Match</strong></span>
error results).
The stipple pixmap must have depth one and must have the same root
as the gcontext (or a
<span class="bold"><strong>Match</strong></span>
error results).
For fill-style
<span class="bold"><strong>Stippled</strong></span>
(but not fill-style
<span class="bold"><strong>OpaqueStippled</strong></span>),
the stipple pattern is tiled in a single plane
and acts as an additional clip mask to be ANDed with the clip-mask.
Any size pixmap can be used for tiling or stippling,
although some sizes may be faster to use than others.
</p><p>
The fill-style defines the contents of the source for line, text, and
fill requests.
For all text and fill requests (for example,
<a class="link" href="#requests:PolyText8" title="PolyText8"><span class="bold"><strong>PolyText8</strong></span></a>,
<a class="link" href="#requests:PolyText16" title="PolyText16"><span class="bold"><strong>PolyText16</strong></span></a>,
<a class="link" href="#requests:PolyFillRectangle" title="PolyFillRectangle"><span class="bold"><strong>PolyFillRectangle</strong></span></a>,
<a class="link" href="#requests:FillPoly" title="FillPoly"><span class="bold"><strong>FillPoly</strong></span></a>,
and
<a class="link" href="#requests:PolyFillArc" title="PolyFillArc"><span class="bold"><strong>PolyFillArc</strong></span></a>)
as well as for line requests with line-style
<span class="bold"><strong>Solid</strong></span>,
(for example,
<a class="link" href="#requests:PolyLine" title="PolyLine"><span class="bold"><strong>PolyLine</strong></span></a>,
<a class="link" href="#requests:PolySegment" title="PolySegment"><span class="bold"><strong>PolySegment</strong></span></a>,
<a class="link" href="#requests:PolyRectangle" title="PolyRectangle"><span class="bold"><strong>PolyRectangle</strong></span></a>,
<a class="link" href="#requests:PolyArc" title="PolyArc"><span class="bold"><strong>PolyArc</strong></span></a> )
and for the even dashes for line requests with line-style
<span class="bold"><strong>OnOffDash</strong></span>
or
<span class="bold"><strong>DoubleDash</strong></span>:
</p><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><tbody><tr><td align="left">
<span class="bold"><strong>Solid</strong></span>
      </td><td align="left">Foreground</td></tr><tr><td align="left">
<span class="bold"><strong>Tiled</strong></span>
      </td><td align="left">Tile</td></tr><tr><td align="left">
<span class="bold"><strong>OpaqueStippled</strong></span>
      </td><td align="left">
A tile with the same width and height as stipple
but with background everywhere stipple has a zero
and with foreground everywhere stipple has a one
      </td></tr><tr><td align="left">
<span class="bold"><strong>Stippled</strong></span>
      </td><td align="left">
Foreground masked by stipple
      </td></tr></tbody></table></div><p>
For the odd dashes for line requests with line-style
<span class="bold"><strong>DoubleDash</strong></span>:
</p><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><tbody><tr><td align="left">
<span class="bold"><strong>Solid</strong></span>
      </td><td align="left">Background</td></tr><tr><td align="left">
<span class="bold"><strong>Tiled</strong></span>
      </td><td align="left">Same as for even dashes</td></tr><tr><td align="left">
<span class="bold"><strong>OpaqueStippled</strong></span>
      </td><td align="left">Same as for even dashes</td></tr><tr><td align="left">
<span class="bold"><strong>Stippled</strong></span>
      </td><td align="left">Background masked by stipple</td></tr></tbody></table></div><p>
The dashes value allowed here is actually a simplified form of the more
general patterns that can be set with
<a class="link" href="#requests:SetDashes" title="SetDashes"><span class="bold"><strong>SetDashes</strong></span></a>.
Specifying a value of N here is equivalent to specifying
the two element list [N, N] in
<a class="link" href="#requests:SetDashes" title="SetDashes"><span class="bold"><strong>SetDashes</strong></span></a>.
The value must be nonzero (or a
<span class="bold"><strong>Value</strong></span>
error results).
The meaning of dash-offset and dashes are explained in the
<a class="link" href="#requests:SetDashes" title="SetDashes"><span class="bold"><strong>SetDashes</strong></span></a>
request.
</p><p><a id="requests:CreateGC:clip-mask"></a>
<a id="idp27834524" class="indexterm"></a>
The clip-mask restricts writes to the destination drawable.
Only pixels where the clip-mask has bits set to 1 are drawn.
Pixels are not drawn outside the area covered by the clip-mask
or where the clip-mask has bits set to 0.
The clip-mask affects all graphics requests,
but it does not clip sources.
The clip-mask origin is interpreted relative to the origin of whatever
destination drawable is specified in a graphics request.
If a pixmap is specified as the clip-mask,
it must have depth 1 and have the same root as the gcontext (or a
<span class="bold"><strong>Match</strong></span>
error results).
If clip-mask is
<span class="bold"><strong>None</strong></span>,
then pixels are always drawn, regardless of the clip origin.
The clip-mask can also be set with the
<a class="link" href="#requests:SetClipRectangles" title="SetClipRectangles"><span class="bold"><strong>SetClipRectangles</strong></span></a>
request.
</p><p>
For
<span class="bold"><strong>ClipByChildren</strong></span>,
both source and destination windows are additionally clipped by all viewable
<span class="bold"><strong>InputOutput</strong></span>
children.
For
<span class="bold"><strong>IncludeInferiors</strong></span>,
neither source nor destination window is clipped by inferiors.
This will result in including subwindow contents in the
source and drawing through subwindow boundaries of the destination.
The use of
<span class="bold"><strong>IncludeInferiors</strong></span>
with a source or destination window of one depth with mapped inferiors
of differing depth is not illegal,
but the semantics is undefined by the core protocol.
</p><p><a id="requests:CreateGC:fill-rule"></a>
<a id="idp27839412" class="indexterm"></a>
<a id="idp27839996" class="indexterm"></a>
The fill-rule defines what pixels are inside (that is, are drawn) for
paths given in
<a class="link" href="#requests:FillPoly" title="FillPoly"><span class="bold"><strong>FillPoly</strong></span></a>
requests.
<span class="bold"><strong>EvenOdd</strong></span>
means a point is inside if an infinite ray with the point as origin crosses
the path an odd number of times.
For
<span class="bold"><strong>Winding</strong></span>,
a point is inside if an infinite ray with the point as origin crosses an
unequal number of clockwise and counterclockwise directed path segments.
A clockwise directed path segment is one that crosses the ray from left
to right as observed from the point.
A counter-clockwise segment is one that crosses the ray from right to left
as observed from the point.
The case where a directed line segment is coincident with the ray is
uninteresting because one can simply choose a different ray that is not
coincident with a segment.
</p><p>
For both fill rules,
a point is infinitely small and the path is an infinitely thin line.
A pixel is inside if the center point of the pixel is inside
and the center point is not on the boundary.
If the center point is on the boundary,
the pixel is inside if and only if the polygon interior is immediately
to its right (x increasing direction).
Pixels with centers along a horizontal edge are a special case
and are inside if and only if the polygon interior is immediately below
(y increasing direction).
</p><p>
The arc-mode controls filling in the
<a class="link" href="#requests:PolyFillArc" title="PolyFillArc"><span class="bold"><strong>PolyFillArc</strong></span></a>
request.
</p><p>
The graphics-exposures flag controls
<a class="link" href="#events:GraphicsExposure" title="GraphicsExposure"><span class="bold"><strong>GraphicsExposure</strong></span></a>
event generation for
<a class="link" href="#requests:CopyArea" title="CopyArea"><span class="bold"><strong>CopyArea</strong></span></a>
and
<a class="link" href="#requests:CopyPlane" title="CopyPlane"><span class="bold"><strong>CopyPlane</strong></span></a>
requests (and any similar requests defined by extensions).
</p><p>
The default component values are:
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Component</th><th align="left">Default</th></tr></thead><tbody><tr><td align="left">function</td><td align="left">
<span class="bold"><strong>Copy</strong></span>
      </td></tr><tr><td align="left">plane-mask</td><td align="left">all ones</td></tr><tr><td align="left">foreground</td><td align="left">0</td></tr><tr><td align="left">background</td><td align="left">1</td></tr><tr><td align="left">line-width</td><td align="left">0</td></tr><tr><td align="left">line-style</td><td align="left"><span class="bold"><strong>Solid</strong></span></td></tr><tr><td align="left">cap-style</td><td align="left"><span class="bold"><strong>Butt</strong></span></td></tr><tr><td align="left">join-style</td><td align="left"><span class="bold"><strong>Miter</strong></span></td></tr><tr><td align="left">fill-style</td><td align="left"><span class="bold"><strong>Solid</strong></span></td></tr><tr><td align="left">fill-rule</td><td align="left"><span class="bold"><strong>EvenOdd</strong></span></td></tr><tr><td align="left">arc-mode</td><td align="left"><span class="bold"><strong>PieSlice</strong></span></td></tr><tr><td align="left">tile</td><td align="left">
<p>
Pixmap of unspecified size filled with foreground pixel
</p>
<p>
(that is, client specified pixel if any, else 0)
</p>
<p>
(subsequent changes to foreground do not affect this pixmap)
</p>
      </td></tr><tr><td align="left">stipple</td><td align="left">
Pixmap of unspecified size filled with ones
      </td></tr><tr><td align="left">tile-stipple-x-origin</td><td align="left">0</td></tr><tr><td align="left">tile-stipple-y-origin</td><td align="left">0</td></tr><tr><td align="left">font</td><td align="left">&lt;server-dependent-font&gt;</td></tr><tr><td align="left">subwindow-mode</td><td align="left">
<span class="bold"><strong>ClipByChildren</strong></span>
      </td></tr><tr><td align="left">graphics-exposures</td><td align="left">
<span class="bold"><strong>True</strong></span>
      </td></tr><tr><td align="left">clip-x-origin</td><td align="left">0</td></tr><tr><td align="left">clip-y-origin</td><td align="left">0</td></tr><tr><td align="left">clip-mask</td><td align="left">
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">dash-offset</td><td align="left">0</td></tr><tr><td align="left">dashes</td><td align="left">4 (that is, the list [4, 4])</td></tr></tbody></table></div><p>
Storing a pixmap in a gcontext might or might not result in a copy
being made.
If the pixmap is later used as the destination for a graphics request,
the change might or might not be reflected in the gcontext.
If the pixmap is used simultaneously in a graphics request
as both a destination and as a tile or stipple,
the results are not defined.
</p><p>
It is quite likely that some amount of gcontext information will be
cached in display hardware and that such hardware can only cache a
small number of gcontexts.
Given the number and complexity of components,
clients should view switching between gcontexts with nearly
identical state as significantly more expensive than making minor
changes to a single gcontext.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ChangeGC"></a>ChangeGC</h2></div></div></div><a id="idp27870852" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>value-mask</em></span>: BITMASK
      </td></tr><tr><td align="left">
<span class="emphasis"><em>value-list</em></span>: LISTofVALUE

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>Font</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Pixmap</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request changes components in gc.
The value-mask and value-list specify which components are to be changed.
The values and restrictions are the same
as for
<a class="link" href="#requests:CreateGC" title="CreateGC"><span class="bold"><strong>CreateGC</strong></span></a>.
</p><p>
Changing the clip-mask also overrides any previous
<a class="link" href="#requests:SetClipRectangles" title="SetClipRectangles"><span class="bold"><strong>SetClipRectangles</strong></span></a>
request on the context.
Changing dash-offset or dashes overrides any previous
<a class="link" href="#requests:SetDashes" title="SetDashes"><span class="bold"><strong>SetDashes</strong></span></a>
request on the context.
</p><p>
The order in which components are verified and altered is server-dependent.
If an error is generated,
a subset of the components may have been altered.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:CopyGC"></a>CopyGC</h2></div></div></div><a id="idp27882956" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>src-gc</em></span>, <span class="emphasis"><em>dst-gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>value-mask</em></span>: BITMASK

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request copies components from src-gc to dst-gc.
The value-mask specifies which components to copy, as for
<a class="link" href="#requests:CreateGC" title="CreateGC"><span class="bold"><strong>CreateGC</strong></span></a>.
The two gcontexts must have the same root and the same depth (or a
<span class="bold"><strong>Match</strong></span>
error results).

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:SetDashes"></a>SetDashes</h2></div></div></div><a id="idp27892380" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>dash-offset</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>dashes</em></span>: LISTofCARD8

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request sets dash-offset and dashes in gc for dashed line styles.
Dashes cannot be empty (or a
<span class="bold"><strong>Value</strong></span>
error results).
Specifying an odd-length list is equivalent to specifying the same list
concatenated with itself to produce an even-length list.
The initial and alternating elements of dashes are the even dashes;
the others are the odd dashes.
Each element specifies a dash length in pixels.
All of the elements must be nonzero (or a
<span class="bold"><strong>Value</strong></span>
error results).
The dash-offset defines the phase of the pattern,
specifying how many pixels into dashes the pattern should actually begin in
any single graphics request.
Dashing is continuous through path elements combined with a join-style
but is reset to the dash-offset between each sequence of joined lines.
</p><p>
The unit of measure for dashes is the same as in the ordinary
coordinate system.
Ideally, a dash length is measured along the slope of the line,
but implementations are only required to match this ideal
for horizontal and vertical lines.
Failing the ideal semantics,
it is suggested that the length be measured along the major axis of the line.
The major axis is defined as the x axis for lines drawn at an angle of
between -45 and +45 degrees or between 135 and 225 degrees from the x axis.
For all other lines, the major axis is the y axis.
</p><p>
For any graphics primitive, the computation of the endpoint of an individual
dash only depends on the geometry of the primitive, the start position
of the dash, the direction of the dash, and the dash length.
</p><p>
For any graphics primitive, the total set of pixels used to render the
primitive (both even and odd numbered dash elements) with
<span class="bold"><strong>DoubleDash</strong></span>
line-style is the same as the set of pixels used to render the
primitive with
<span class="bold"><strong>Solid</strong></span>
line-style.
</p><p>
For any graphics primitive, if the primitive is drawn with
<span class="bold"><strong>OnOffDash</strong></span>
or
<span class="bold"><strong>DoubleDash</strong></span>
line-style unclipped at position [x,y] and again at position
[x+dx,y+dy], then a point [x1,y1] is included in a dash in the first
instance if and only if the point [x1+dx,y1+dy] is included in the dash in
the second instance.  In addition, the effective set of points comprising a
dash cannot be affected by clipping.  A point is included in a clipped dash
if and only if the point lies inside the clipping region and the point
would be included in the dash when drawn unclipped.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:SetClipRectangles"></a>SetClipRectangles</h2></div></div></div><a id="idp27906068" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>clip-x-origin</em></span>, <span class="emphasis"><em>clip-y-origin</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>rectangles</em></span>: LISTofRECTANGLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>ordering</em></span>:
{ <span class="bold"><strong>UnSorted</strong></span>,
<span class="bold"><strong>YSorted</strong></span>,
<span class="bold"><strong>YXSorted</strong></span>,
<span class="bold"><strong>YXBanded</strong></span>}

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request changes clip-mask in gc to the specified list of rectangles
and sets the clip origin.
Output will be clipped to remain contained within the rectangles.
The clip origin is interpreted relative to the origin of
whatever destination drawable is specified in a graphics request.
The rectangle coordinates are interpreted relative to the clip origin.
The rectangles should be nonintersecting, or graphics results will be
undefined.
Note that the list of rectangles can be empty,
which effectively disables output.
This is the opposite of passing
<span class="bold"><strong>None</strong></span>
as the clip-mask in
<a class="link" href="#requests:CreateGC" title="CreateGC"><span class="bold"><strong>CreateGC</strong></span></a>
and
<a class="link" href="#requests:ChangeGC" title="ChangeGC"><span class="bold"><strong>ChangeGC</strong></span></a>.
</p><p>
If known by the client,
ordering relations on the rectangles can be specified with the ordering
argument.
This may provide faster operation by the server.
If an incorrect ordering is specified,
the server may generate a
<span class="bold"><strong>Match</strong></span>
error, but it is not required to do so.
If no error is generated,
the graphics results are undefined.
<span class="bold"><strong>UnSorted</strong></span>
means that the rectangles are in arbitrary order.
<span class="bold"><strong>YSorted</strong></span>
means that the rectangles are nondecreasing in their Y origin.
<span class="bold"><strong>YXSorted</strong></span>
additionally constrains
<span class="bold"><strong>YSorted</strong></span>
order in that all rectangles with an equal Y origin are
nondecreasing in their X origin.
<span class="bold"><strong>YXBanded</strong></span>
additionally constrains
<span class="bold"><strong>YXSorted</strong></span>
by requiring that, for every possible Y scanline,
all rectangles that include that scanline have identical Y origins and Y
extents.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:FreeGC"></a>FreeGC</h2></div></div></div><a id="idp27922948" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>gc</em></span>: GCONTEXT

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>GContext</strong></span>


      </td></tr></tbody></table></div><p>
This request deletes the association between the resource ID and the gcontext
and destroys the gcontext.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ClearArea"></a>ClearArea</h2></div></div></div><a id="idp27929108" class="indexterm"></a><a id="idp27929676" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>width</em></span>, <span class="emphasis"><em>height</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>exposures</em></span>: BOOL

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
The x and y coordinates are relative to the window's origin
and specify the upper-left corner of the rectangle.
If width is zero,
it is replaced with the current width of the window minus x.
If height is zero,
it is replaced with the current height of the window minus y.
If the window has a defined background tile,
the rectangle is tiled with a plane-mask of all ones and function of
<span class="bold"><strong>Copy</strong></span>
and a subwindow-mode of
<span class="bold"><strong>ClipByChildren</strong></span>.
If the window has background
<span class="bold"><strong>None</strong></span>,
the contents of the window are not changed.
In either case,
if exposures is
<span class="bold"><strong>True</strong></span>,
then one or more exposure events are generated for regions of the rectangle
that are either visible or are being retained in a backing store.
</p><p>
It is a
<span class="bold"><strong>Match</strong></span>
error to use an
<span class="bold"><strong>InputOnly</strong></span>
window in this request.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:CopyArea"></a>CopyArea</h2></div></div></div><a id="idp27942452" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>src-drawable</em></span>, <span class="emphasis"><em>dst-drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>src-x</em></span>, <span class="emphasis"><em>src-y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>width</em></span>, <span class="emphasis"><em>height</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>dst-x</em></span>, <span class="emphasis"><em>dst-y</em></span>: INT16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>


      </td></tr></tbody></table></div><p>
This request combines the specified rectangle of src-drawable with the
specified rectangle of dst-drawable.
The src-x and src-y coordinates are relative to src-drawable's origin.
The dst-x and dst-y are relative to dst-drawable's origin,
each pair specifying the upper-left corner of the rectangle.
The src-drawable must have the same root and the same depth
as dst-drawable (or a
<span class="bold"><strong>Match</strong></span>
error results).
</p><p>
If regions of the source rectangle are obscured and have not been retained
in backing store
or if regions outside the boundaries of the source drawable are specified,
then those regions are not copied,
but the following occurs on all corresponding destination regions that are
either visible or are retained in backing-store.
If the dst-drawable is a window with a background other than
<span class="bold"><strong>None</strong></span>,
these corresponding destination regions are tiled
(with plane-mask of all ones and function
<span class="bold"><strong>Copy</strong></span>)
with that background.
Regardless of tiling and whether the destination is a window or a pixmap,
if graphics-exposures in gc is
<span class="bold"><strong>True</strong></span>,
then
<a class="link" href="#events:GraphicsExposure" title="GraphicsExposure"><span class="bold"><strong>GraphicsExposure</strong></span></a>
events for all corresponding destination regions are generated.
</p><p>
If graphics-exposures is
<span class="bold"><strong>True</strong></span>
but no
<span class="bold"><strong>GraphicsExposure</strong></span>
events are generated,
then a
<a class="link" href="#events:NoExposure" title="NoExposure"><span class="bold"><strong>NoExposure</strong></span></a>
event is generated.
</p><p>
GC components: function, plane-mask, subwindow-mode,
graphics-exposures, clip-x-origin, clip-y-origin, clip-mask

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:CopyPlane"></a>CopyPlane</h2></div></div></div><a id="idp27959140" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>src-drawable</em></span>, <span class="emphasis"><em>dst-drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>src-x</em></span>, <span class="emphasis"><em>src-y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>width</em></span>, <span class="emphasis"><em>height</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>dst-x</em></span>, <span class="emphasis"><em>dst-y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>bit-plane</em></span>: CARD32

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
The src-drawable must have the same root as dst-drawable (or a
<span class="bold"><strong>Match</strong></span>
error results), but it need not have the same depth.
The bit-plane must have exactly one bit set to 1 and the value of bit-plane
must be less than %2 sup n% where <span class="emphasis"><em>n</em></span> is the depth of src-drawable (or a
<span class="bold"><strong>Value</strong></span>
error results).
Effectively, a pixmap of the same depth as dst-drawable and with size specified
by the source region is formed using the foreground/background pixels in gc
(foreground everywhere the bit-plane in src-drawable contains a bit set to 1,
background everywhere the bit-plane contains a bit set to 0),
and the equivalent of a
<a class="link" href="#requests:CopyArea" title="CopyArea"><span class="bold"><strong>CopyArea</strong></span></a>
is performed, with all the same exposure semantics.
This can also be thought of as using the specified region of the source
bit-plane as a stipple with a fill-style of
<span class="bold"><strong>OpaqueStippled</strong></span>
for filling a rectangular area of the destination.
</p><p>
GC components: function, plane-mask, foreground, background,
subwindow-mode, graphics-exposures, clip-x-origin, clip-y-origin,
clip-mask

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:PolyPoint"></a>PolyPoint</h2></div></div></div><a id="idp27974972" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>coordinate-mode</em></span>:
{ <span class="bold"><strong>Origin</strong></span>,
<span class="bold"><strong>Previous</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>points</em></span>: LISTofPOINT

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request combines the foreground pixel in gc with the pixel
at each point in the drawable.
The points are drawn in the order listed.
</p><p>
The first point is always relative to the drawable's origin.
The rest are relative either to that origin or the previous point,
depending on the coordinate-mode.
</p><p>
GC components: function, plane-mask, foreground, subwindow-mode,
clip-x-origin, clip-y-origin, clip-mask

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:PolyLine"></a>PolyLine</h2></div></div></div><a id="idp27986116" class="indexterm"></a><a id="idp27986684" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>coordinate-mode</em></span>:
{ <span class="bold"><strong>Origin</strong></span>,
<span class="bold"><strong>Previous</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>points</em></span>: LISTofPOINT

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request draws lines between each pair of points (point[i], point[i+1]).
The lines are drawn in the order listed.
The lines join correctly at all intermediate points,
and if the first and last points coincide,
the first and last lines also join correctly.
</p><p>
For any given line,
no pixel is drawn more than once.
If thin (zero line-width) lines intersect,
the intersecting pixels are drawn multiple times.
If wide lines intersect,
the intersecting pixels are drawn only once, as though the entire
<span class="bold"><strong>PolyLine</strong></span>
were a single filled shape.
</p><p>
The first point is always relative to the drawable's origin.
The rest are relative either to that origin or the previous point,
depending on the coordinate-mode.
</p><p>
When either of the two lines involved in a
<span class="bold"><strong>Bevel</strong></span>
join is neither vertical
nor horizontal, then the slope and position of the line segment defining
the bevel join edge is implementation dependent.  However, the computation
of the slope and distance (relative to the join point) only depends on
the line width and the slopes of the two lines.
</p><p>
GC components: function, plane-mask, line-width, line-style,
cap-style, join-style, fill-style, subwindow-mode, clip-x-origin,
clip-y-origin, clip-mask
</p><p>
GC mode-dependent components: foreground, background, tile, stipple,
tile-stipple-x-origin, tile-stipple-y-origin, dash-offset, dashes

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:PolySegment"></a>PolySegment</h2></div></div></div><a id="idp28000124" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>segments</em></span>: LISTofSEGMENT

      </td></tr><tr><td align="left">

where:

      </td></tr><tr><td align="left">

SEGMENT: [x1, y1, x2, y2: INT16]

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>


      </td></tr></tbody></table></div><p>
For each segment,
this request draws a line between [x1, y1] and [x2, y2].
The lines are drawn in the order listed.
No joining is performed at coincident endpoints.
For any given line,
no pixel is drawn more than once.
If lines intersect,
the intersecting pixels are drawn multiple times.
</p><p>
GC components: function, plane-mask, line-width, line-style,
cap-style, fill-style, subwindow-mode, clip-x-origin, clip-y-origin,
clip-mask
</p><p>
GC mode-dependent components: foreground, background, tile, stipple,
tile-stipple-x-origin, tile-stipple-y-origin, dash-offset, dashes

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:PolyRectangle"></a>PolyRectangle</h2></div></div></div><a id="idp28011124" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>rectangles</em></span>: LISTofRECTANGLE

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>


      </td></tr></tbody></table></div><p>
This request draws the outlines of the specified rectangles, as if a five-point
<a class="link" href="#requests:PolyLine" title="PolyLine"><span class="bold"><strong>PolyLine</strong></span></a>
were specified for each rectangle:
</p><p>
</p><pre class="literallayout">
	[x,y] [x+width,y] [x+width,y+height] [x,y+height] [x,y]
</pre><p>
</p><p>
The x and y coordinates of each rectangle are relative to the drawable's origin
and define the upper-left corner of the rectangle.
</p><p>
The rectangles are drawn in the order listed.
For any given rectangle,
no pixel is drawn more than once.
If rectangles intersect,
the intersecting pixels are drawn multiple times.
</p><p>
GC components: function, plane-mask, line-width, line-style,
cap-style, join-style, fill-style, subwindow-mode, clip-x-origin,
clip-y-origin, clip-mask
</p><p>
GC mode-dependent components: foreground, background, tile, stipple,
tile-stipple-x-origin, tile-stipple-y-origin, dash-offset, dashes

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:PolyArc"></a>PolyArc</h2></div></div></div><a id="idp28022340" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>arcs</em></span>: LISTofARC

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>


      </td></tr></tbody></table></div><p>
This request draws circular or elliptical arcs.
Each arc is specified by a rectangle and two angles.
The angles are signed integers in degrees scaled by 64,
with positive indicating counterclockwise motion and
negative indicating clockwise motion.
The start of the arc is specified by angle1 relative to the three-o'clock
position from the center of the rectangle,
and the path and extent of the arc is specified by angle2 relative to the
start of the arc.
If the magnitude of angle2 is greater than 360 degrees,
it is truncated to 360 degrees.
The x and y coordinates of the rectangle are relative to the origin of
the drawable.
For an arc specified as [x,y,w,h,a1,a2],
the origin of the major and minor axes is at [x+(w/2),y+(h/2)],
and the infinitely thin path describing the entire circle/ellipse intersects
the horizontal axis at [x,y+(h/2)] and [x+w,y+(h/2)] and intersects the
vertical axis at [x+(w/2),y] and [x+(w/2),y+h].
These coordinates are not necessarily integral; that is,
they are not truncated to discrete coordinates.
</p><p>
For a wide line with line-width lw, the ideal bounding outlines for filling
are given by the two infinitely thin paths consisting of all points whose
perpendicular distance from a tangent to the path of the circle/ellipse is
equal to lw/2 (which may be a fractional value).  When the width and height
of the arc are not equal and both are nonzero, then the actual bounding
outlines are implementation dependent.  However, the computation of the
shape and position of the bounding outlines (relative to the center of the
arc) only depends on the width and height of the arc and the
line-width.
</p><p>
The cap-style is applied the same as for a line corresponding to the
tangent of the circle/ellipse at the endpoint.  When the angle of an arc
face is not an integral multiple of 90 degrees, and the width and height of
the arc are both are nonzero, then the shape and position of the cap at
that face is implementation dependent.  However, for a
<span class="bold"><strong>Butt</strong></span>
cap, the face
is defined by a straight line, and the computation of the position
(relative to the center of the arc) and the slope of the line only
depends on the width and height of the arc and the angle of the arc face.
For other cap styles, the computation of the position (relative to the
center of the arc) and the shape of the cap only depends on the width
and height of the arc, the line-width, the angle of the arc face, and the
direction (clockwise or counter clockwise) of the arc from the endpoint.
</p><p>
The join-style is applied the same as for two lines corresponding to the
tangents of the circles/ellipses at the join point.  When the width and
height of both arcs are nonzero, and the angle of either arc face is not an
integral multiple of 90 degrees, then the shape of the join is
implementation dependent.  However, the computation of the shape only
depends on the width and height of each arc, the line-width, the angles of
the two arc faces, the direction (clockwise or counter clockwise) of the
arcs from the join point, and the relative orientation of the two arc
center points.
</p><p>
For an arc specified as [x,y,w,h,a1,a2],
the angles must be specified in the effectively skewed coordinate system of
the ellipse (for a circle, the angles and coordinate systems are identical).
The relationship between these angles and angles expressed in the normal
coordinate system of the screen (as measured with a protractor) is as
follows:
</p><pre class="literallayout">
	skewed-angle = atan(tan(normal-angle) * w/h) + adjust
</pre><p>
</p><p>
The skewed-angle and normal-angle are expressed in radians (rather
than in degrees scaled by 64) in the range [0,2*PI).
The atan returns a value in the range [-PI/2,PI/2].
The adjust is:
</p><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><tbody><tr><td align="left">0</td><td align="left">for normal-angle in the range [0,PI/2)</td></tr><tr><td align="left">PI</td><td align="left">for normal-angle in the range [PI/2,(3*PI)/2)</td></tr><tr><td align="left">2*PI</td><td align="left">for normal-angle in the range [(3*PI)/2,2*PI)</td></tr></tbody></table></div><p>
</p><p>
The arcs are drawn in the order listed.
If the last point in one arc coincides with the first point in the following
arc,
the two arcs will join correctly.
If the first point in the first arc coincides with the last point
in the last arc,
the two arcs will join correctly.
For any given arc,
no pixel is drawn more than once.
If two arcs join correctly and the line-width is greater than zero
and the arcs intersect,
no pixel is drawn more than once.
Otherwise, the intersecting pixels of intersecting arcs are drawn multiple
times.
Specifying an arc with one endpoint and a clockwise extent draws the
same pixels as specifying the other endpoint and an equivalent
counterclockwise extent, except as it affects joins.
</p><p>
By specifying one axis to be zero,
a horizontal or vertical line can be drawn.
</p><p>
Angles are computed based solely on the coordinate system,
ignoring the aspect ratio.
</p><p>
GC components: function, plane-mask, line-width, line-style,
cap-style, join-style, fill-style, subwindow-mode, clip-x-origin,
clip-y-origin, clip-mask
</p><p>
GC mode-dependent components: foreground, background, tile, stipple,
tile-stipple-x-origin, tile-stipple-y-origin, dash-offset, dashes

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:FillPoly"></a>FillPoly</h2></div></div></div><a id="idp28042956" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>shape</em></span>:
{ <span class="bold"><strong>Complex</strong></span>,
<span class="bold"><strong>Nonconvex</strong></span>,
<span class="bold"><strong>Convex</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>coordinate-mode</em></span>:
{ <span class="bold"><strong>Origin</strong></span>,
<span class="bold"><strong>Previous</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>points</em></span>: LISTofPOINT

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request fills the region closed by the specified path.
The path is closed automatically if the last point in the list does not
coincide with the first point.
No pixel of the region is drawn more than once.
</p><p>
The first point is always relative to the drawable's origin.
The rest are relative either to that origin or the previous point,
depending on the coordinate-mode.
</p><p>
The shape parameter may be used by the server to improve performance.
<span class="bold"><strong>Complex</strong></span>
means the path may self-intersect.
Contiguous coincident points in the path are not treated
as self-intersection.
</p><p>
<span class="bold"><strong>Nonconvex</strong></span>
means the path does not self-intersect,
but the shape is not wholly convex.
If known by the client,
specifying
<span class="bold"><strong>Nonconvex</strong></span>
over
<span class="bold"><strong>Complex</strong></span>
may improve performance.
If
<span class="bold"><strong>Nonconvex</strong></span>
is specified for a self-intersecting path,
the graphics results are undefined.
</p><p>
<span class="bold"><strong>Convex</strong></span>
means that for every pair of points inside the polygon,
the line segment connecting them does not intersect the path.
If known by the client,
specifying
<span class="bold"><strong>Convex</strong></span>
can improve performance.
If
<span class="bold"><strong>Convex</strong></span>
is specified for a path that is not convex,
the graphics results are undefined.
</p><p>
GC components: function, plane-mask, fill-style, fill-rule,
subwindow-mode, clip-x-origin, clip-y-origin, clip-mask
</p><p>
GC mode-dependent components: foreground, background, tile, stipple,
tile-stipple-x-origin, tile-stipple-y-origin

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:PolyFillRectangle"></a>PolyFillRectangle</h2></div></div></div><a id="idp28060588" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>rectangles</em></span>: LISTofRECTANGLE

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>


      </td></tr></tbody></table></div><p>
This request fills the specified rectangles, as if a four-point
<a class="link" href="#requests:FillPoly" title="FillPoly"><span class="bold"><strong>FillPoly</strong></span></a>
were specified for each rectangle:
</p><pre class="literallayout">
	[x,y] [x+width,y] [x+width,y+height] [x,y+height]
</pre><p>
</p><p>
The x and y coordinates of each rectangle are relative to the drawable's origin
and define the upper-left corner of the rectangle.
</p><p>
The rectangles are drawn in the order listed.
For any given rectangle,
no pixel is drawn more than once.
If rectangles intersect,
the intersecting pixels are drawn multiple times.
</p><p>
GC components: function, plane-mask, fill-style, subwindow-mode,
clip-x-origin, clip-y-origin, clip-mask
</p><p>
GC mode-dependent components: foreground, background, tile, stipple,
tile-stipple-x-origin, tile-stipple-y-origin

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:PolyFillArc"></a>PolyFillArc</h2></div></div></div><a id="idp28071500" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>arcs</em></span>: LISTofARC

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>


      </td></tr></tbody></table></div><p>
For each arc,
this request fills the region closed by the infinitely thin path
described by the specified arc and one or two line segments,
depending on the arc-mode.
For
<span class="bold"><strong>Chord</strong></span>,
the single line segment joining the endpoints of the arc is used.
For
<span class="bold"><strong>PieSlice</strong></span>,
the two line segments joining the endpoints of the arc with the center point
are used.
</p><p>
For an arc specified as [x,y,w,h,a1,a2], the origin of the major and minor
axes is at [x+(w/2),y+(h/2)], and the infinitely thin path describing the
entire circle/ellipse intersects the horizontal axis at [x,y+(h/2)] and
[x+w,y+(h/2)] and intersects the vertical axis at [x+(w/2),y] and
[x+(w/2),y+h].  These coordinates are not necessarily integral; that is,
they are not truncated to discrete coordinates.
</p><p>
The arc angles are interpreted as specified in the
<a class="link" href="#requests:PolyArc" title="PolyArc"><span class="bold"><strong>PolyArc</strong></span></a>
request.  When
the angle of an arc face is not an integral multiple of 90 degrees, then
the precise endpoint on the arc is implementation dependent.  However, for
<span class="bold"><strong>Chord</strong></span>
arc-mode, the computation of the pair of endpoints (relative to the
center of the arc) only depends on the width and height of the arc and
the angles of the two arc faces.  For
<span class="bold"><strong>PieSlice</strong></span>
arc-mode, the computation of
an endpoint only depends on the angle of the arc face for that
endpoint and the ratio of the arc width to arc height.
</p><p>
The arcs are filled in the order listed.
For any given arc,
no pixel is drawn more than once.
If regions intersect,
the intersecting pixels are drawn multiple times.
</p><p>
GC components: function, plane-mask, fill-style, arc-mode,
subwindow-mode, clip-x-origin, clip-y-origin, clip-mask
</p><p>
GC mode-dependent components: foreground, background, tile, stipple,
tile-stipple-x-origin, tile-stipple-y-origin

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:PutImage"></a>PutImage</h2></div></div></div><a id="idp28084668" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>depth</em></span>: CARD8
      </td></tr><tr><td align="left">
<span class="emphasis"><em>width</em></span>, <span class="emphasis"><em>height</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>dst-x</em></span>, <span class="emphasis"><em>dst-y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>left-pad</em></span>: CARD8
      </td></tr><tr><td align="left">
<span class="emphasis"><em>format</em></span>:
{ <span class="bold"><strong>Bitmap</strong></span>,
<span class="bold"><strong>XYPixmap</strong></span>,
<span class="bold"><strong>ZPixmap</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>data</em></span>: LISTofBYTE

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request combines an image with a rectangle of the drawable.
The dst-x and dst-y coordinates are relative to the drawable's origin.
</p><p>
If
<span class="bold"><strong>Bitmap</strong></span>
format is used,
then depth must be one (or a
<span class="bold"><strong>Match</strong></span>
error results), and the image must be in XY format.
The foreground pixel in gc defines the source for bits set to 1 in the image,
and the background pixel defines the source for the bits set to 0.
</p><p>
For
<span class="bold"><strong>XYPixmap</strong></span>
and
<span class="bold"><strong>ZPixmap</strong></span>,
the depth must match the depth of the drawable (or a
<span class="bold"><strong>Match</strong></span>
error results).
For
<span class="bold"><strong>XYPixmap</strong></span>,
the image must be sent in XY format.
For
<span class="bold"><strong>ZPixmap</strong></span>,
the image must be sent in the Z format defined for the given depth.
</p><p>
The left-pad must be zero for
<span class="bold"><strong>ZPixmap</strong></span>
format (or a
<span class="bold"><strong>Match</strong></span>
error results).
For
<span class="bold"><strong>Bitmap</strong></span>
and
<span class="bold"><strong>XYPixmap</strong></span>
format,
left-pad must be less than bitmap-scanline-pad as given in the server
connection setup information (or a
<span class="bold"><strong>Match</strong></span>
error results).
The first left-pad bits in every scanline are to be ignored by the server.
The actual image begins that many bits into the data.
The width argument defines the width of the actual image
and does not include left-pad.
</p><p>
GC components: function, plane-mask, subwindow-mode, clip-x-origin,
clip-y-origin, clip-mask
</p><p>
GC mode-dependent components: foreground, background

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetImage"></a>GetImage</h2></div></div></div><a id="idp28105796" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>width</em></span>, <span class="emphasis"><em>height</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>plane-mask</em></span>: CARD32
      </td></tr><tr><td align="left">
<span class="emphasis"><em>format</em></span>:
{ <span class="bold"><strong>XYPixmap</strong></span>,
<span class="bold"><strong>ZPixmap</strong></span>}

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

depth: CARD8
      </td></tr><tr><td align="left">
visual: VISUALID or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
data: LISTofBYTE

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request returns the contents of the given rectangle of the drawable in the
given format.
The x and y coordinates are relative to the drawable's origin
and define the upper-left corner of the rectangle.
If
<span class="bold"><strong>XYPixmap</strong></span>
is specified,
only the bit planes specified in plane-mask are transmitted,
with the planes appearing from most significant to least significant
in bit order.
If
<span class="bold"><strong>ZPixmap</strong></span>
is specified, then bits in all planes not specified in plane-mask are
transmitted as zero.
Range checking is not performed on plane-mask;
extraneous bits are simply ignored.
The returned depth is as specified when the drawable was created
and is the same as a depth component in a FORMAT structure (in the connection
setup), not a bits-per-pixel component.
If the drawable is a window,
its visual type is returned.
If the drawable is a pixmap,
the visual is
<span class="bold"><strong>None</strong></span>.
</p><p>
If the drawable is a pixmap,
then the given rectangle must be wholly contained within the pixmap (or a
<span class="bold"><strong>Match</strong></span>
error results).
If the drawable is a window,
the window must be viewable,
and it must be the case that,
if there were no inferiors or overlapping windows,
the specified rectangle of the window would be fully visible on the screen
and wholly contained within the outside edges of the window (or a
<span class="bold"><strong>Match</strong></span>
error results).
Note that the borders of the window can be included and read with this request.
If the window has a backing store,
then the backing-store contents are returned for regions of the window
that are obscured by noninferior windows;
otherwise, the returned contents of such obscured regions are undefined.
Also undefined are the returned contents of visible
regions of inferiors of different depth than the specified window.
The pointer cursor image is not included in the contents returned.
</p><p>
This request is not general-purpose in the same sense as other
graphics-related requests.
It is intended specifically for rudimentary hardcopy support.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:PolyText8"></a>PolyText8</h2></div></div></div><a id="idp28123876" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><tbody><tr><td colspan="3" align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td colspan="3" align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td colspan="3" align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>: INT16
      </td></tr><tr><td colspan="3" align="left">
<span class="emphasis"><em>items</em></span>: LISTofTEXTITEM8

      </td></tr><tr><td rowspan="4" align="left" valign="top">

where:
      </td><td class="auto-generated"> </td><td class="auto-generated"> </td></tr><tr><td align="left">
TEXTITEM8:
      </td><td align="left">
TEXTELT8 or FONT
      </td></tr><tr><td rowspan="2" align="left" valign="top">
TEXTELT8:
      </td><td align="left">
[delta: INT8
      </td></tr><tr><td align="left">
string: STRING8]

      </td></tr><tr><td colspan="3" align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>Font</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>


      </td></tr></tbody></table></div><p>
The x and y coordinates are relative to the drawable's origin
and specify the baseline starting position (the initial character origin).
Each text item is processed in turn.
A font item causes the font to be stored in gc
and to be used for subsequent text.
Switching among fonts does not affect the next character origin.
A text element delta specifies an additional change in the position
along the x axis before the string is drawn;
the delta is always added to the character origin.
Each character image, as defined by the font in gc,
is treated as an additional mask for a fill operation on the drawable.
</p><p>
All contained FONTs are always transmitted most significant byte first.
</p><p>
If a
<span class="bold"><strong>Font</strong></span>
error is generated for an item,
the previous items may have been drawn.
</p><p>
For fonts defined with 2-byte matrix indexing,
each STRING8 byte is interpreted as a byte2 value of a CHAR2B with a byte1
value of zero.
</p><p>
GC components: function, plane-mask, fill-style, font,
subwindow-mode, clip-x-origin, clip-y-origin, clip-mask
</p><p>
GC mode-dependent components: foreground, background, tile, stipple,
tile-stipple-x-origin, tile-stipple-y-origin

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:PolyText16"></a>PolyText16</h2></div></div></div><a id="idp28141612" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><tbody><tr><td colspan="3" align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td colspan="3" align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td colspan="3" align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>: INT16
      </td></tr><tr><td colspan="3" align="left">
<span class="emphasis"><em>items</em></span>: LISTofTEXTITEM16

      </td></tr><tr><td rowspan="4" align="left" valign="top">

where:
      </td><td class="auto-generated"> </td><td class="auto-generated"> </td></tr><tr><td align="left">
TEXTITEM16:
      </td><td align="left">
TEXTELT16 or FONT
      </td></tr><tr><td rowspan="2" align="left" valign="top">
TEXTELT16:
      </td><td align="left">
[delta: INT8
      </td></tr><tr><td align="left">
string: STRING16]

      </td></tr><tr><td colspan="3" align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>Font</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>


      </td></tr></tbody></table></div><p>
This request is similar to
<a class="link" href="#requests:PolyText8" title="PolyText8"><span class="bold"><strong>PolyText8</strong></span></a>,
except 2-byte (or 16-bit) characters are used.
For fonts defined with linear indexing rather than 2-byte matrix indexing,
the server will interpret each CHAR2B as a 16-bit number that
has been transmitted most significant byte first (that is, byte1 of the
CHAR2B is taken as the most significant byte).

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ImageText8"></a>ImageText8</h2></div></div></div><a id="idp28157692" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>string</em></span>: STRING8

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>


      </td></tr></tbody></table></div><p>
The x and y coordinates are relative to the drawable's origin
and specify the baseline starting position (the initial character origin).
The effect is first to fill a destination rectangle with the background
pixel defined in gc and then to paint the text with the foreground pixel.
The upper-left corner of the filled rectangle is at:
</p><pre class="literallayout">
	[x, y - font-ascent]
</pre><p>
</p><p>
the width is:
</p><pre class="literallayout">
	overall-width
</pre><p>
</p><p>
and the height is:
</p><pre class="literallayout">
	font-ascent + font-descent
</pre><p>
</p><p>
The overall-width, font-ascent, and font-descent are as
they would be returned by a
<a class="link" href="#requests:QueryTextExtents" title="QueryTextExtents"><span class="bold"><strong>QueryTextExtents</strong></span></a>
call using gc and string.
</p><p>
The function and fill-style defined in gc are ignored for this request.
The effective function is
<span class="bold"><strong>Copy</strong></span>,
and the effective fill-style
<span class="bold"><strong>Solid</strong></span>.
</p><p>
For fonts defined with 2-byte matrix indexing,
each STRING8 byte is interpreted as a byte2 value of a CHAR2B with a byte1
value of zero.
</p><p>
GC components: plane-mask, foreground, background, font,
subwindow-mode, clip-x-origin, clip-y-origin, clip-mask

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ImageText16"></a>ImageText16</h2></div></div></div><a id="idp28171860" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>gc</em></span>: GCONTEXT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>string</em></span>: STRING16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>GContext</strong></span>,
<span class="bold"><strong>Match</strong></span>


      </td></tr></tbody></table></div><p>
This request is similar to
<a class="link" href="#requests:ImageText8" title="ImageText8"><span class="bold"><strong>ImageText8</strong></span></a>,
except 2-byte (or 16-bit) characters are used.
For fonts defined with linear indexing rather than 2-byte matrix indexing,
the server will interpret each CHAR2B as a 16-bit number that
has been transmitted most significant byte first (that is, byte1 of the
CHAR2B is taken as the most significant byte).

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:CreateColormap"></a>CreateColormap</h2></div></div></div><a id="idp28182364" class="indexterm"></a><a id="idp28182948" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>mid</em></span>: COLORMAP
      </td></tr><tr><td align="left">
<span class="emphasis"><em>visual</em></span>: VISUALID
      </td></tr><tr><td align="left">
<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>alloc</em></span>:
{ <span class="bold"><strong>None</strong></span>,
<span class="bold"><strong>All</strong></span>}

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>IDChoice</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>,
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request creates a colormap of the specified visual type for the screen
on which the window resides and associates the identifier mid with it.
The visual type must be one supported by the screen (or a
<span class="bold"><strong>Match</strong></span>
error results).
The initial values of the colormap entries are undefined for classes
<span class="bold"><strong>GrayScale</strong></span>,
<span class="bold"><strong>PseudoColor</strong></span>,
and
<span class="bold"><strong>DirectColor</strong></span>.
For
<span class="bold"><strong>StaticGray</strong></span>,
<span class="bold"><strong>StaticColor</strong></span>,
and
<span class="bold"><strong>TrueColor</strong></span>,
the entries will have defined values,
but those values are specific to the visual and are not defined
by the core protocol.
For
<span class="bold"><strong>StaticGray</strong></span>,
<span class="bold"><strong>StaticColor</strong></span>,
and
<span class="bold"><strong>TrueColor</strong></span>,
alloc must be specified as
<span class="bold"><strong>None</strong></span>
(or a
<span class="bold"><strong>Match</strong></span>
error results).
For the other classes, if alloc is
<span class="bold"><strong>None</strong></span>,
the colormap initially has no allocated entries,
and clients can allocate entries.
</p><p>
If alloc is
<span class="bold"><strong>All</strong></span>,
then the entire colormap is allocated writable.
The initial values of all allocated entries are undefined.
For
<span class="bold"><strong>GrayScale</strong></span>
and
<span class="bold"><strong>PseudoColor</strong></span>,
the effect is as if an
<a class="link" href="#requests:AllocColorCells" title="AllocColorCells"><span class="bold"><strong>AllocColorCells</strong></span></a>
request returned all pixel values from zero to N - 1,
where N is the colormap-entries value in the specified visual.
For
<span class="bold"><strong>DirectColor</strong></span>,
the effect is as if an
<a class="link" href="#requests:AllocColorPlanes" title="AllocColorPlanes"><span class="bold"><strong>AllocColorPlanes</strong></span></a>
request returned a pixel value of zero and red-mask,
green-mask, and blue-mask values containing the same bits as the
corresponding masks in the specified visual.
However,
in all cases, none of these entries can be freed with
<a class="link" href="#requests:FreeColors" title="FreeColors"><span class="bold"><strong>FreeColors</strong></span></a>.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:FreeColormap"></a>FreeColormap</h2></div></div></div><a id="idp28202612" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cmap</em></span>: COLORMAP

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Colormap</strong></span>


      </td></tr></tbody></table></div><p>
This request deletes the association between the resource ID and the colormap
and frees the colormap storage.
If the colormap is an installed map for a screen,
it is uninstalled (see
<a class="link" href="#requests:UninstallColormap" title="UninstallColormap"><span class="bold"><strong>UninstallColormap</strong></span></a>
request).
If the colormap is defined as the colormap for a window (by means of
<a class="link" href="#requests:CreateWindow" title="CreateWindow"><span class="bold"><strong>CreateWindow</strong></span></a>
or
<a class="link" href="#requests:ChangeWindowAttributes" title="ChangeWindowAttributes"><span class="bold"><strong>ChangeWindowAttributes</strong></span></a>),
the colormap for the window is changed to
<span class="bold"><strong>None</strong></span>,
and a
<a class="link" href="#events:ColormapNotify" title="ColormapNotify"><span class="bold"><strong>ColormapNotify</strong></span></a>
event is generated.
The protocol does not define the colors displayed for a window with a colormap of
<span class="bold"><strong>None</strong></span>.
</p><p>
This request has no effect on a default colormap for a screen.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:CopyColormapAndFree"></a>CopyColormapAndFree</h2></div></div></div><a id="idp28212452" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>mid</em></span>, <span class="emphasis"><em>src-cmap</em></span>: COLORMAP

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>Colormap</strong></span>,
<span class="bold"><strong>IDChoice</strong></span>


      </td></tr></tbody></table></div><p>
This request creates a colormap of the same visual type
and for the same screen as src-cmap,
and it associates identifier mid with it.
It also moves all of the client's existing allocations from src-cmap
to the new colormap with their color values intact
and their read-only or writable characteristics intact,
and it frees those entries in src-cmap.
Color values in other entries in the new colormap are undefined.
If src-cmap was created by the client with alloc
<span class="bold"><strong>All</strong></span>
(see
<a class="link" href="#requests:CreateColormap" title="CreateColormap"><span class="bold"><strong>CreateColormap</strong></span></a>
request),
then the new colormap is also created with alloc
<span class="bold"><strong>All</strong></span>,
all color values for all entries are copied from src-cmap,
and then all entries in src-cmap are freed.
If src-cmap was not created by the client with alloc
<span class="bold"><strong>All</strong></span>,
then the allocations to be moved are all those pixels and planes that have
been allocated by the client using either
<a class="link" href="#requests:AllocColor" title="AllocColor"><span class="bold"><strong>AllocColor</strong></span></a>,
<a class="link" href="#requests:AllocNamedColor" title="AllocNamedColor"><span class="bold"><strong>AllocNamedColor</strong></span></a>,
<a class="link" href="#requests:AllocColorCells" title="AllocColorCells"><span class="bold"><strong>AllocColorCells</strong></span></a>,
or
<a class="link" href="#requests:AllocColorPlanes" title="AllocColorPlanes"><span class="bold"><strong>AllocColorPlanes</strong></span></a>
and that have not been freed since they were allocated.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:InstallColormap"></a>InstallColormap</h2></div></div></div><a id="idp28224444" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cmap</em></span>: COLORMAP

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Colormap</strong></span>


      </td></tr></tbody></table></div><p>
This request makes this colormap an installed map for its screen.
All windows associated with this colormap immediately display with true colors.
As a side effect,
additional colormaps might be implicitly installed
or uninstalled by the server.
Which other colormaps get installed or uninstalled is server-dependent
except that the required list must remain installed.
</p><p>
If cmap is not already an installed map, a
<a class="link" href="#events:ColormapNotify" title="ColormapNotify"><span class="bold"><strong>ColormapNotify</strong></span></a>
event is generated on every window having cmap as an attribute.
In addition,
for every other colormap that is installed or uninstalled as a result
of the request, a
<span class="bold"><strong>ColormapNotify</strong></span>
event is generated on every window having that colormap as an attribute.
</p><p>
At any time, there is a subset of the installed maps that are viewed as an
ordered list and are called the required list.
The length of the required list is at most M,
where M is the min-installed-maps specified for the screen in the
connection setup.
The required list is maintained as follows.
When a colormap is an explicit argument to
<span class="bold"><strong>InstallColormap</strong></span>,
it is added to the head of the list; the list is truncated at the
tail, if necessary, to keep the length of the list to at most M.
When a colormap is an explicit argument to
<a class="link" href="#requests:UninstallColormap" title="UninstallColormap"><span class="bold"><strong>UninstallColormap</strong></span></a>
and it is in the required list, it is removed from the list.
A colormap is not added to the required list when it is installed implicitly
by the server, and the server cannot implicitly uninstall a colormap that is
in the required list.
</p><p>
Initially the default colormap for a screen is installed (but is not in
the required list).

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:UninstallColormap"></a>UninstallColormap</h2></div></div></div><a id="idp28234564" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cmap</em></span>: COLORMAP

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Colormap</strong></span>


      </td></tr></tbody></table></div><p>
If cmap is on the required list for its screen (see
<a class="link" href="#requests:InstallColormap" title="InstallColormap"><span class="bold"><strong>InstallColormap</strong></span></a>
request),
it is removed from the list.
As a side effect,
cmap might be uninstalled,
and additional colormaps might be implicitly installed or uninstalled.
Which colormaps get installed or uninstalled is server-dependent
except that the required list must remain installed.
</p><p>
If cmap becomes uninstalled, a
<a class="link" href="#events:ColormapNotify" title="ColormapNotify"><span class="bold"><strong>ColormapNotify</strong></span></a>
event is generated on every window having cmap as an attribute.
In addition,
for every other colormap that is installed or uninstalled as a result of
the request, a
<span class="bold"><strong>ColormapNotify</strong></span>
event is generated on every window having that colormap as an attribute.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ListInstalledColormaps"></a>ListInstalledColormaps</h2></div></div></div><a id="idp28242996" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

cmaps: LISTofCOLORMAP

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Window</strong></span>


      </td></tr></tbody></table></div><p>
This request returns a list of the currently installed colormaps for the
screen of the specified window.
The order of colormaps is not significant,
and there is no explicit indication of the required list (see
<a class="link" href="#requests:InstallColormap" title="InstallColormap"><span class="bold"><strong>InstallColormap</strong></span></a>
request).

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:AllocColor"></a>AllocColor</h2></div></div></div><a id="idp28251116" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cmap</em></span>: COLORMAP
      </td></tr><tr><td align="left">
<span class="emphasis"><em>red</em></span>, <span class="emphasis"><em>green</em></span>, <span class="emphasis"><em>blue</em></span>: CARD16

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

pixel: CARD32
      </td></tr><tr><td align="left">
red, green, blue: CARD16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>Colormap</strong></span>


      </td></tr></tbody></table></div><p>
This request allocates a read-only colormap entry corresponding to the closest
RGB values provided by the hardware.
It also returns the pixel and the RGB values actually used.
Multiple clients requesting the same effective RGB values can be assigned
the same read-only entry, allowing entries to be shared.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:AllocNamedColor"></a>AllocNamedColor</h2></div></div></div><a id="idp28261100" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cmap</em></span>: COLORMAP
      </td></tr><tr><td align="left">
<span class="emphasis"><em>name</em></span>: STRING8

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

pixel: CARD32
      </td></tr><tr><td align="left">
exact-red, exact-green, exact-blue: CARD16
      </td></tr><tr><td align="left">
visual-red, visual-green, visual-blue: CARD16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>Colormap</strong></span>,
<span class="bold"><strong>Name</strong></span>


      </td></tr></tbody></table></div><p>
This request looks up the named color with respect to the screen associated
with the colormap.
Then, it does an
<a class="link" href="#requests:AllocColor" title="AllocColor"><span class="bold"><strong>AllocColor</strong></span></a>
on cmap.
The name should use the ISO Latin-1 encoding,
and uppercase and lowercase do not matter.
The exact RGB values specify the true values for the color,
and the visual values specify the values actually used in the colormap.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:AllocColorCells"></a>AllocColorCells</h2></div></div></div><a id="idp28271844" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cmap</em></span>: COLORMAP
      </td></tr><tr><td align="left">
<span class="emphasis"><em>colors</em></span>, <span class="emphasis"><em>planes</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>contiguous</em></span>: BOOL

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

pixels, masks: LISTofCARD32

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>Colormap</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
The number of colors must be positive,
and the number of planes must be nonnegative (or a
<span class="bold"><strong>Value</strong></span>
error results).
If C colors and P planes are requested,
then C pixels and P masks are returned.
No mask will have any bits in common with any other mask
or with any of the pixels.
By ORing together masks and pixels,
C*%2 sup P% distinct pixels can be produced;
all of these are allocated writable by the request.
For
<span class="bold"><strong>GrayScale</strong></span>
or
<span class="bold"><strong>PseudoColor</strong></span>,
each mask will have exactly one bit set to 1; for
<span class="bold"><strong>DirectColor</strong></span>,
each will have exactly three bits set to 1.
If contiguous is
<span class="bold"><strong>True</strong></span>
and if all masks are ORed together,
a single contiguous set of bits will be formed for
<span class="bold"><strong>GrayScale</strong></span>
or
<span class="bold"><strong>PseudoColor</strong></span>,
and three contiguous sets of bits (one within each pixel subfield) for
<span class="bold"><strong>DirectColor</strong></span>.
The RGB values of the allocated entries are undefined.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:AllocColorPlanes"></a>AllocColorPlanes</h2></div></div></div><a id="idp28285468" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cmap</em></span>: COLORMAP
      </td></tr><tr><td align="left">
<span class="emphasis"><em>colors</em></span>, <span class="emphasis"><em>reds</em></span>, <span class="emphasis"><em>greens</em></span>, <span class="emphasis"><em>blues</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>contiguous</em></span>: BOOL

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

pixels: LISTofCARD32
      </td></tr><tr><td align="left">
red-mask, green-mask, blue-mask: CARD32

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>Colormap</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
The number of colors must be positive,
and the reds, greens, and blues must be nonnegative (or a
<span class="bold"><strong>Value</strong></span>
error results).
If C colors, R reds, G greens, and B blues are requested,
then C pixels are returned, and the masks have R, G, and B bits set,
respectively.
If contiguous is
<span class="bold"><strong>True</strong></span>,
then each mask will have a contiguous set of bits.
No mask will have any bits in common with any other mask
or with any of the pixels.
For
<span class="bold"><strong>DirectColor</strong></span>,
each mask will lie within the corresponding pixel subfield.
By ORing together subsets of masks with pixels,
C*%2 sup R+G+B% distinct pixels can be produced;
all of these are allocated writable by the request.
The initial RGB values of the allocated entries are undefined.
In the colormap,
there are only C*%2 sup R% independent red entries,
C*%2 sup G% independent green entries,
and C*%2 sup B% independent blue entries.
This is true even for
<span class="bold"><strong>PseudoColor</strong></span>.
When the colormap entry for a pixel value is changed using
<a class="link" href="#requests:StoreColors" title="StoreColors"><span class="bold"><strong>StoreColors</strong></span></a>
or
<a class="link" href="#requests:StoreNamedColor" title="StoreNamedColor"><span class="bold"><strong>StoreNamedColor</strong></span></a>,
the pixel is decomposed according to the masks and the
corresponding independent entries are updated.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:FreeColors"></a>FreeColors</h2></div></div></div><a id="idp28300292" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cmap</em></span>: COLORMAP
      </td></tr><tr><td align="left">
<span class="emphasis"><em>pixels</em></span>: LISTofCARD32
      </td></tr><tr><td align="left">
<span class="emphasis"><em>plane-mask</em></span>: CARD32

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Access</strong></span>,
<span class="bold"><strong>Colormap</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
The plane-mask should not have any bits in common with any of the
pixels.
The set of all pixels is produced by ORing together subsets of
plane-mask with the pixels.
The request frees all of these pixels that
were allocated by the client (using
<a class="link" href="#requests:AllocColor" title="AllocColor"><span class="bold"><strong>AllocColor</strong></span></a>,
<a class="link" href="#requests:AllocNamedColor" title="AllocNamedColor"><span class="bold"><strong>AllocNamedColor</strong></span></a>,
<a class="link" href="#requests:AllocColorCells" title="AllocColorCells"><span class="bold"><strong>AllocColorCells</strong></span></a>,
and
<a class="link" href="#requests:AllocColorPlanes" title="AllocColorPlanes"><span class="bold"><strong>AllocColorPlanes</strong></span></a>).
Note that freeing an
individual pixel obtained from
<a class="link" href="#requests:AllocColorPlanes" title="AllocColorPlanes"><span class="bold"><strong>AllocColorPlanes</strong></span></a>
may not actually allow it to be reused until all of its related pixels
are also freed.
Similarly, a read-only entry is not actually freed until it has been
freed by all clients, and if a client allocates the same read-only entry
multiple times, it must free the entry that many times before the
entry is actually freed.
</p><p>
All specified pixels that are allocated by the client in cmap are freed,
even if one or more pixels produce an error.
A
<span class="bold"><strong>Value</strong></span>
error is generated if a specified pixel is not a valid index into cmap.
An
<span class="bold"><strong>Access</strong></span>
error is generated if a specified pixel is not allocated by the
client (that is, is unallocated or is only allocated by another client)
or if the colormap was created with all entries writable (using an alloc
value of
<span class="bold"><strong>All</strong></span>
in
<a class="link" href="#requests:CreateColormap" title="CreateColormap"><span class="bold"><strong>CreateColormap</strong></span></a>).
If more than one pixel is in error,
it is arbitrary as to which pixel is reported.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:StoreColors"></a>StoreColors</h2></div></div></div><a id="idp28314588" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
<span class="emphasis"><em>cmap</em></span>: COLORMAP
      </td></tr><tr><td align="left">
<span class="emphasis"><em>items</em></span>: LISTofCOLORITEM
      </td></tr><tr><td align="left">
where:
      </td></tr><tr><td align="left">
        <p>
        </p><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><tbody><tr><td align="left">COLORITEM:</td><td align="left">[pixel: CARD32</td></tr><tr><td align="left"> </td><td align="left">
do-red, do-green, do-blue: BOOL
            </td></tr><tr><td align="left"> </td><td align="left">
red, green, blue: CARD16]
            </td></tr></tbody></table></div><p>
        </p>
      </td></tr><tr><td align="left">
Errors:
<span class="bold"><strong>Access</strong></span>,
<span class="bold"><strong>Colormap</strong></span>,
<span class="bold"><strong>Value</strong></span>
      </td></tr></tbody></table></div><p>
This request changes the colormap entries of the specified pixels.
The do-red, do-green, and do-blue fields indicate which components
should actually be changed.
If the colormap is an installed map for its screen,
the changes are visible immediately.
</p><p>
All specified pixels that are allocated writable in cmap (by any client)
are changed, even if one or more pixels produce an error.
A
<span class="bold"><strong>Value</strong></span>
error is generated if a specified pixel is not a valid index into cmap, and an
<span class="bold"><strong>Access</strong></span>
error is generated if a specified pixel is unallocated or is allocated
read-only.
If more than one pixel is in error,
it is arbitrary as to which pixel is reported.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:StoreNamedColor"></a>StoreNamedColor</h2></div></div></div><a id="idp28328292" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cmap</em></span>: COLORMAP
      </td></tr><tr><td align="left">
<span class="emphasis"><em>pixel</em></span>: CARD32
      </td></tr><tr><td align="left">
<span class="emphasis"><em>name</em></span>: STRING8
      </td></tr><tr><td align="left">
<span class="emphasis"><em>do-red</em></span>, <span class="emphasis"><em>do-green</em></span>, <span class="emphasis"><em>do-blue</em></span>: BOOL

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Access</strong></span>,
<span class="bold"><strong>Colormap</strong></span>,
<span class="bold"><strong>Name</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request looks up the named color with respect to the screen associated
with cmap and then does a
<a class="link" href="#requests:StoreColors" title="StoreColors"><span class="bold"><strong>StoreColors</strong></span></a>
in cmap.
The name should use the ISO Latin-1 encoding,
and uppercase and lowercase do not matter.
The
<span class="bold"><strong>Access</strong></span>
and
<span class="bold"><strong>Value</strong></span>
errors are the same as in
<span class="bold"><strong>StoreColors</strong></span>.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:QueryColors"></a>QueryColors</h2></div></div></div><a id="idp28340492" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cmap</em></span>: COLORMAP
      </td></tr><tr><td align="left">
<span class="emphasis"><em>pixels</em></span>: LISTofCARD32

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

colors: LISTofRGB

      </td></tr><tr><td align="left">

where:

      </td></tr><tr><td align="left">

RGB: [red, green, blue: CARD16]

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Colormap</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request returns the hardware-specific color values stored in cmap for
the specified pixels.
The values returned for an unallocated entry are undefined.
A
<span class="bold"><strong>Value</strong></span>
error is generated if a pixel is not a valid index into cmap.
If more than one pixel is in error,
it is arbitrary as to which pixel is reported.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:LookupColor"></a>LookupColor</h2></div></div></div><a id="idp28351196" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cmap</em></span>: COLORMAP
      </td></tr><tr><td align="left">
<span class="emphasis"><em>name</em></span>: STRING8

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

exact-red, exact-green, exact-blue: CARD16
      </td></tr><tr><td align="left">
visual-red, visual-green, visual-blue: CARD16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Colormap</strong></span>,
<span class="bold"><strong>Name</strong></span>


      </td></tr></tbody></table></div><p>
This request looks up the string name of a color with respect to the screen
associated with cmap and returns both the exact color values and
the closest values provided by the hardware with respect to the visual
type of cmap.
The name should use the ISO Latin-1 encoding,
and uppercase and lowercase do not matter.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:CreateCursor"></a>CreateCursor</h2></div></div></div><a id="idp28360524" class="indexterm"></a><a id="idp28361108" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cid</em></span>: CURSOR
      </td></tr><tr><td align="left">
<span class="emphasis"><em>source</em></span>: PIXMAP
      </td></tr><tr><td align="left">
<span class="emphasis"><em>mask</em></span>: PIXMAP or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>fore-red</em></span>, <span class="emphasis"><em>fore-green</em></span>, <span class="emphasis"><em>fore-blue</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>back-red</em></span>, <span class="emphasis"><em>back-green</em></span>, <span class="emphasis"><em>back-blue</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>: CARD16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>IDChoice</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Pixmap</strong></span>


      </td></tr></tbody></table></div><p>
This request creates a cursor and associates identifier cid with it.
The foreground and background RGB values must be specified,
even if the server only has a
<span class="bold"><strong>StaticGray</strong></span>
or
<span class="bold"><strong>GrayScale</strong></span>
screen.
The foreground is used for the bits set to 1 in the source,
and the background is used for the bits set to 0.
Both source and mask (if specified) must have depth one (or a
<span class="bold"><strong>Match</strong></span>
error results), but they can have any root.
The mask pixmap defines the shape of the cursor.
That is,
the bits set to 1 in the mask define which source pixels will be displayed,
and where the mask has bits set to 0,
the corresponding bits of the source pixmap are ignored.
If no mask is given,
all pixels of the source are displayed.
The mask, if present, must be the same size as the source (or a
<span class="bold"><strong>Match</strong></span>
error results).
The x and y coordinates define the hotspot relative to the source's origin
and must be a point within the source (or a
<span class="bold"><strong>Match</strong></span>
error results).
</p><p>
The components of the cursor may be transformed arbitrarily to meet
display limitations.
</p><p>
The pixmaps can be freed immediately if no further explicit references
to them are to be made.
</p><p>
Subsequent drawing in the source or mask pixmap has an undefined effect
on the cursor.
The server might or might not make a copy of the pixmap.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:CreateGlyphCursor"></a>CreateGlyphCursor</h2></div></div></div><a id="idp28378012" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cid</em></span>: CURSOR
      </td></tr><tr><td align="left">
<span class="emphasis"><em>source-font</em></span>: FONT
      </td></tr><tr><td align="left">
<span class="emphasis"><em>mask-font</em></span>: FONT or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>source-char</em></span>, <span class="emphasis"><em>mask-char</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>fore-red</em></span>, <span class="emphasis"><em>fore-green</em></span>, <span class="emphasis"><em>fore-blue</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>back-red</em></span>, <span class="emphasis"><em>back-green</em></span>, <span class="emphasis"><em>back-blue</em></span>: CARD16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>Font</strong></span>,
<span class="bold"><strong>IDChoice</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request is similar to
<a class="link" href="#requests:CreateCursor" title="CreateCursor"><span class="bold"><strong>CreateCursor</strong></span></a>,
except the source and mask bitmaps are obtained from the specified font glyphs.
The source-char must be a defined glyph in source-font,
and if mask-font is given, mask-char must be a defined glyph in mask-font
(or a
<span class="bold"><strong>Value</strong></span>
error results).
The mask font and character are optional.
The origins of the source and mask (if it is defined) glyphs
are positioned coincidently and define the hotspot.
The source and mask need not have the same bounding box metrics,
and there is no restriction on the placement of the hotspot relative
to the bounding boxes.
If no mask is given,
all pixels of the source are displayed.
Note that source-char and mask-char are CARD16, not CHAR2B.
For 2-byte matrix fonts,
the 16-bit value should be formed with byte1 in the most significant byte
and byte2 in the least significant byte.
</p><p>
The components of the cursor may be transformed arbitrarily to meet
display limitations.
</p><p>
The fonts can be freed immediately if no further explicit references to
them are to be made.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:FreeCursor"></a>FreeCursor</h2></div></div></div><a id="idp28393780" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cursor</em></span>: CURSOR

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Cursor</strong></span>


      </td></tr></tbody></table></div><p>
This request deletes the association between the resource ID and the cursor.
The cursor storage will be freed when no other resource references it.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:RecolorCursor"></a>RecolorCursor</h2></div></div></div><a id="idp28400004" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>cursor</em></span>: CURSOR
      </td></tr><tr><td align="left">
<span class="emphasis"><em>fore-red</em></span>, <span class="emphasis"><em>fore-green</em></span>, <span class="emphasis"><em>fore-blue</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>back-red</em></span>, <span class="emphasis"><em>back-green</em></span>, <span class="emphasis"><em>back-blue</em></span>: CARD16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Cursor</strong></span>


      </td></tr></tbody></table></div><p>
This request changes the color of a cursor.
If the cursor is being displayed on a screen,
the change is visible immediately.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:QueryBestSize"></a>QueryBestSize</h2></div></div></div><a id="idp28409292" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>class</em></span>:
{ <span class="bold"><strong>Cursor</strong></span>,
<span class="bold"><strong>Tile</strong></span>,
<span class="bold"><strong>Stipple</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>width</em></span>, <span class="emphasis"><em>height</em></span>: CARD16

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

width, height: CARD16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Drawable</strong></span>,
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request returns the best size that is closest to the argument size.
For
<span class="bold"><strong>Cursor</strong></span>,
this is the largest size that can be fully displayed.
For
<span class="bold"><strong>Tile</strong></span>,
this is the size that can be tiled fastest.
For
<span class="bold"><strong>Stipple</strong></span>,
this is the size that can be stippled fastest.
</p><p>
For
<span class="bold"><strong>Cursor</strong></span>,
the drawable indicates the desired screen.
For
<span class="bold"><strong>Tile</strong></span>
and
<span class="bold"><strong>Stipple</strong></span>,
the drawable indicates the screen and also possibly the window class and depth.
An
<span class="bold"><strong>InputOnly</strong></span>
window cannot be used as the drawable for
<span class="bold"><strong>Tile</strong></span>
or
<span class="bold"><strong>Stipple</strong></span>
(or a
<span class="bold"><strong>Match</strong></span>
error results).

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:QueryExtension"></a>QueryExtension</h2></div></div></div><a id="idp28424604" class="indexterm"></a><a id="idp28425188" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>name</em></span>: STRING8

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

present: BOOL
      </td></tr><tr><td align="left">
major-opcode: CARD8
      </td></tr><tr><td align="left">
first-event: CARD8
      </td></tr><tr><td align="left">
first-error: CARD8


      </td></tr></tbody></table></div><p>
This request determines if the named extension is present.
If so,
the major opcode for the extension is returned, if it has one.
Otherwise, zero is returned.
Any minor opcode and the request formats are specific to the extension.
If the extension involves additional event types,
the base event type code is returned.
Otherwise, zero is returned.
The format of the events is specific to the extension.
If the extension involves additional error codes,
the base error code is returned.
Otherwise, zero is returned.
The format of additional data in the errors is specific to the extension.
</p><p>
The extension name should use the ISO Latin-1 encoding,
and uppercase and lowercase matter.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ListExtensions"></a>ListExtensions</h2></div></div></div><a id="idp28433684" class="indexterm"></a><a id="idp28434268" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

names: LISTofSTRING8


      </td></tr></tbody></table></div><p>
This request returns a list of all extensions supported by the server.
</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:SetModifierMapping"></a>SetModifierMapping</h2></div></div></div><a id="idp28439252" class="indexterm"></a><a id="idp28439836" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>keycodes-per-modifier</em></span>: CARD8
      </td></tr><tr><td align="left">
<span class="emphasis"><em>keycodes</em></span>: LISTofKEYCODE

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

status:
{ <span class="bold"><strong>Success</strong></span>,
<span class="bold"><strong>Busy</strong></span>,
<span class="bold"><strong>Failed</strong></span>}

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request specifies the keycodes (if any) of the keys to be used as
modifiers.
The number of keycodes in the list must be 8*keycodes-per-modifier (or a
<span class="bold"><strong>Length</strong></span>
error results).
The keycodes are divided into eight sets,
with each set containing keycodes-per-modifier elements.
The sets are assigned to the modifiers
<span class="bold"><strong>Shift</strong></span>,
<span class="bold"><strong>Lock</strong></span>,
<span class="bold"><strong>Control</strong></span>,
<span class="bold"><strong>Mod1</strong></span>,
<span class="bold"><strong>Mod2</strong></span>,
<span class="bold"><strong>Mod3</strong></span>,
<span class="bold"><strong>Mod4</strong></span>,
and
<span class="bold"><strong>Mod5</strong></span>,
in order.
Only nonzero keycode values are used within each set;
zero values are ignored.
All of the nonzero keycodes must be in the range specified by min-keycode
and max-keycode in the connection setup (or a
<span class="bold"><strong>Value</strong></span>
error results).
The order of keycodes within a set does not matter.
If no nonzero values are specified in a set,
the use of the corresponding modifier is disabled,
and the modifier bit will always be zero.
Otherwise, the modifier bit will be one whenever
at least one of the keys in the corresponding set is in the down
position.
</p><p>
A server can impose restrictions on how modifiers can be changed (for example,
if certain keys do not generate up transitions in hardware,
if auto-repeat cannot be disabled on certain keys,
or if multiple keys per modifier are not supported).
The status reply is
<span class="bold"><strong>Failed</strong></span>
if some such restriction is violated,
and none of the modifiers is changed.
</p><p>
If the new nonzero keycodes specified for a modifier differ from those
currently defined and any (current or new) keys for that modifier are
logically in the down state, then the status reply is
<span class="bold"><strong>Busy</strong></span>,
and none of the modifiers is changed.
</p><p>
This request generates a
<a class="link" href="#events:MappingNotify" title="MappingNotify"><span class="bold"><strong>MappingNotify</strong></span></a>
event on a
<span class="bold"><strong>Success</strong></span>
status.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetModifierMapping"></a>GetModifierMapping</h2></div></div></div><a id="idp28456628" class="indexterm"></a><a id="idp28457212" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

keycodes-per-modifier: CARD8
      </td></tr><tr><td align="left">
keycodes: LISTofKEYCODE


      </td></tr></tbody></table></div><p>
This request returns the keycodes of the keys being used as modifiers.
The number of keycodes in the list is 8*keycodes-per-modifier.
The keycodes are divided into eight sets,
with each set containing keycodes-per-modifier elements.
The sets are assigned to the modifiers
<span class="bold"><strong>Shift</strong></span>,
<span class="bold"><strong>Lock</strong></span>,
<span class="bold"><strong>Control</strong></span>,
<span class="bold"><strong>Mod1</strong></span>,
<span class="bold"><strong>Mod2</strong></span>,
<span class="bold"><strong>Mod3</strong></span>,
<span class="bold"><strong>Mod4</strong></span>,
and
<span class="bold"><strong>Mod5</strong></span>,
in order.
The keycodes-per-modifier value is chosen arbitrarily by the server;
zeroes are used to fill in unused elements within each set.
If only zero values are given in a set,
the use of the corresponding modifier has been disabled.
The order of keycodes within each set is chosen arbitrarily by the server.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ChangeKeyboardMapping"></a>ChangeKeyboardMapping</h2></div></div></div><a id="idp28466100" class="indexterm"></a><a id="idp28466700" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>first-keycode</em></span>: KEYCODE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>keysyms-per-keycode</em></span>: CARD8
      </td></tr><tr><td align="left">
<span class="emphasis"><em>keysyms</em></span>: LISTofKEYSYM

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Alloc</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request defines the symbols for the specified number of keycodes,
starting with the specified keycode.
The symbols for keycodes outside this range remained unchanged.
The number of elements in the keysyms list must be a multiple of
keysyms-per-keycode (or a
<span class="bold"><strong>Length</strong></span>
error results).
The first-keycode must be greater than or equal to min-keycode as returned
in the connection setup (or a
<span class="bold"><strong>Value</strong></span>
error results) and:
</p><pre class="literallayout">
	first-keycode + (keysyms-length / keysyms-per-keycode) - 1
</pre><p>
</p><p>
must be less than or equal to max-keycode as returned in the connection
setup (or a
<span class="bold"><strong>Value</strong></span>
error results).
KEYSYM number N (counting from zero) for keycode K has an index
(counting from zero) of:
</p><pre class="literallayout">
	(K - first-keycode) * keysyms-per-keycode + N
</pre><p>
</p><p>
in keysyms.
The keysyms-per-keycode can be chosen arbitrarily by the client
to be large enough to hold all desired symbols.
A special KEYSYM value of
<span class="keysym">NoSymbol</span>
should be used to fill in unused elements for individual keycodes.
It is legal for
<span class="keysym">NoSymbol</span>
to appear in nontrailing positions of the effective list for a keycode.
</p><p>
This request generates a
<a class="link" href="#events:MappingNotify" title="MappingNotify"><span class="bold"><strong>MappingNotify</strong></span></a>
event.
</p><p>
There is no requirement that the server interpret this mapping;
it is merely stored for reading and writing by clients
(see <a class="link" href="#Keyboards" title="Chapter 5. Keyboards">section 5</a>).

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetKeyboardMapping"></a>GetKeyboardMapping</h2></div></div></div><a id="idp28479844" class="indexterm"></a><a id="idp28480428" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>first-keycode</em></span>: KEYCODE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>count</em></span>: CARD8

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

keysyms-per-keycode: CARD8
      </td></tr><tr><td align="left">
keysyms: LISTofKEYSYM

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request returns the symbols for the specified number of keycodes,
starting with the specified keycode.
The first-keycode must be greater than or equal to
min-keycode as returned in the connection setup (or a
<span class="bold"><strong>Value</strong></span>
error results), and:
</p><pre class="literallayout">
	first-keycode + count - 1
</pre><p>
</p><p>
must be less than or equal to max-keycode as returned in the connection setup
(or a
<span class="bold"><strong>Value</strong></span>
error results).
The number of elements in the keysyms list is:
</p><pre class="literallayout">
	count * keysyms-per-keycode
</pre><p>
</p><p>
and KEYSYM number N (counting from zero) for keycode K has an index
(counting from zero) of:
</p><pre class="literallayout">
	(K - first-keycode) * keysyms-per-keycode + N
</pre><p>
</p><p>
in keysyms.
The keysyms-per-keycode value is chosen arbitrarily by the server
to be large enough to report all requested symbols.
A special KEYSYM value of
<span class="keysym">NoSymbol</span>
is used to fill in unused elements for individual keycodes.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ChangeKeyboardControl"></a>ChangeKeyboardControl</h2></div></div></div><a id="idp28492372" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>value-mask</em></span>: BITMASK
      </td></tr><tr><td align="left">
<span class="emphasis"><em>value-list</em></span>: LISTofVALUE

      </td></tr><tr><td align="left">
Errors:
<span class="bold"><strong>Match</strong></span>,
<span class="bold"><strong>Value</strong></span>
      </td></tr></tbody></table></div><p>
This request controls various aspects of the keyboard.
The value-mask and value-list specify which controls are to be changed.
The possible values are:
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Control</th><th align="left">Type</th></tr></thead><tbody><tr><td align="left">key-click-percent</td><td align="left">INT8</td></tr><tr><td align="left">bell-percent</td><td align="left">INT8</td></tr><tr><td align="left">bell-pitch</td><td align="left">INT16</td></tr><tr><td align="left">bell-duration</td><td align="left">INT16</td></tr><tr><td align="left">led</td><td align="left">CARD8</td></tr><tr><td align="left">led-mode</td><td align="left">
{ <span class="bold"><strong>On</strong></span>,
<span class="bold"><strong>Off</strong></span> }
      </td></tr><tr><td align="left">key </td><td align="left">KEYCODE</td></tr><tr><td align="left">auto-repeat-mode</td><td align="left">
{ <span class="bold"><strong>On</strong></span>,
<span class="bold"><strong>Off</strong></span>,
<span class="bold"><strong>Default</strong></span> }
      </td></tr></tbody></table></div><p>
The key-click-percent sets the volume for key clicks between 0 (off) and
100 (loud) inclusive, if possible.
Setting to -1 restores the default.
Other negative values generate a
<span class="bold"><strong>Value</strong></span>
error.
</p><p>
The bell-percent sets the base volume for the bell between 0 (off) and 100
(loud) inclusive, if possible.
Setting to -1 restores the default.
Other negative values generate a
<span class="bold"><strong>Value</strong></span>
error.
</p><p>
The bell-pitch sets the pitch (specified in Hz) of the bell, if possible.
Setting to -1 restores the default.
Other negative values generate a
<span class="bold"><strong>Value</strong></span>
error.
</p><p>
The bell-duration sets the duration of the bell (specified in milliseconds),
if possible.
Setting to -1 restores the default.
Other negative values generate a
<span class="bold"><strong>Value</strong></span>
error.
</p><p>
If both led-mode and led are specified,
then the state of that LED is changed, if possible.
If only led-mode is specified,
then the state of all LEDs are changed, if possible.
At most 32 LEDs, numbered from one, are supported.
No standard interpretation of LEDs is defined.
It is a
<span class="bold"><strong>Match</strong></span>
error if an led is specified without an led-mode.
</p><p>
If both auto-repeat-mode and key are specified,
then the auto-repeat mode of that key is changed, if possible.
If only auto-repeat-mode is specified,
then the global auto-repeat mode for the entire keyboard is changed,
if possible, without affecting the per-key settings.
It is a
<span class="bold"><strong>Match</strong></span>
error if a key is specified without an auto-repeat-mode.
Each key has an individual mode of whether or not it should auto-repeat
and a default setting for that mode.
In addition, there is a global mode of whether auto-repeat should be
enabled or not and a default setting for that mode.
When the global mode is
<span class="bold"><strong>On</strong></span>,
keys should obey their individual auto-repeat modes.
When the global mode is
<span class="bold"><strong>Off</strong></span>,
no keys should auto-repeat.
An auto-repeating key generates alternating
<a class="link" href="#events:KeyPress"><span class="bold"><strong>KeyPress</strong></span></a>
and
<a class="link" href="#events:KeyRelease"><span class="bold"><strong>KeyRelease</strong></span></a>
events.
When a key is used as a modifier,
it is desirable for the key not to auto-repeat,
regardless of the auto-repeat setting for that key.
</p><p>
A bell generator connected with the console but not directly on the
keyboard is treated as if it were part of the keyboard.
</p><p>
The order in which controls are verified and altered is server-dependent.
If an error is generated,
a subset of the controls may have been altered.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetKeyboardControl"></a>GetKeyboardControl</h2></div></div></div><a id="idp28517628" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

key-click-percent: CARD8
      </td></tr><tr><td align="left">
bell-percent: CARD8
      </td></tr><tr><td align="left">
bell-pitch: CARD16
      </td></tr><tr><td align="left">
bell-duration: CARD16
      </td></tr><tr><td align="left">
led-mask: CARD32
      </td></tr><tr><td align="left">
global-auto-repeat:
{ <span class="bold"><strong>On</strong></span>,
<span class="bold"><strong>Off</strong></span>}
      </td></tr><tr><td align="left">
auto-repeats: LISTofCARD8


      </td></tr></tbody></table></div><p>
This request returns the current control values for the keyboard.
For the LEDs,
the least significant bit of led-mask corresponds to LED one,
and each one bit in led-mask indicates an LED that is lit.
The auto-repeats is a bit vector;
each one bit indicates that auto-repeat is enabled for the corresponding key.
The vector is represented as 32 bytes.
Byte N (from 0) contains the bits for keys 8N to 8N + 7,
with the least significant bit in the byte representing key 8N.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:Bell"></a>Bell</h2></div></div></div><a id="idp28526676" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>percent</em></span>: INT8

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request rings the bell on the keyboard at a volume relative to the
base volume for the keyboard, if possible.
Percent can range from -100 to 100 inclusive (or a
<span class="bold"><strong>Value</strong></span>
error results).
The volume at which the bell is rung when percent is nonnegative is:
</p><pre class="literallayout">
	base - [(base * percent) / 100] + percent
</pre><p>
</p><p>
When percent is negative, it is:
</p><pre class="literallayout">
	base + [(base * percent) / 100]
</pre><p>

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:SetPointerMapping"></a>SetPointerMapping</h2></div></div></div><a id="idp28534388" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>map</em></span>: LISTofCARD8

      </td></tr><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

status:
{ <span class="bold"><strong>Success</strong></span>,
<span class="bold"><strong>Busy</strong></span>}

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request sets the mapping of the pointer.
Elements of the list are indexed starting from one.
The length of the list must be the same as
<a class="link" href="#requests:GetPointerMapping" title="GetPointerMapping"><span class="bold"><strong>GetPointerMapping</strong></span></a>
would return (or a
<span class="bold"><strong>Value</strong></span>
error results).
The index is a core button number,
and the element of the list defines the effective number.
</p><p>
A zero element disables a button.
Elements are not restricted in value by the number of physical buttons,
but no two elements can have the same nonzero value (or a
<span class="bold"><strong>Value</strong></span>
error results).
</p><p>
If any of the buttons to be altered are logically in the down state,
the status reply is
<span class="bold"><strong>Busy</strong></span>,
and the mapping is not changed.
</p><p>
This request generates a
<a class="link" href="#events:MappingNotify" title="MappingNotify"><span class="bold"><strong>MappingNotify</strong></span></a>
event on a
<span class="bold"><strong>Success</strong></span>
status.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetPointerMapping"></a>GetPointerMapping</h2></div></div></div><a id="idp28546268" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

map: LISTofCARD8


      </td></tr></tbody></table></div><p>
This request returns the current mapping of the pointer.
Elements of the list are indexed starting from one.
The length of the list indicates the number of physical buttons.
</p><p>
The nominal mapping for a pointer is the identity mapping: map[i]=i.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ChangePointerControl"></a>ChangePointerControl</h2></div></div></div><a id="idp28551812" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>do-acceleration</em></span>, <span class="emphasis"><em>do-threshold</em></span>: BOOL
      </td></tr><tr><td align="left">
<span class="emphasis"><em>acceleration-numerator</em></span>, <span class="emphasis"><em>acceleration-denominator</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>threshold</em></span>: INT16

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request defines how the pointer moves.
The acceleration is a multiplier for movement expressed as a fraction.
For example,
specifying 3/1 means the pointer moves three times as fast as normal.
The fraction can be rounded arbitrarily by the server.
Acceleration only takes effect if the pointer moves more than threshold
number of pixels at once and only applies to the amount beyond the threshold.
Setting a value to -1 restores the default.
Other negative values generate a
<span class="bold"><strong>Value</strong></span>
error, as does a zero value for acceleration-denominator.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetPointerControl"></a>GetPointerControl</h2></div></div></div><a id="idp28561204" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

acceleration-numerator, acceleration-denominator: CARD16
      </td></tr><tr><td align="left">
threshold: CARD16


      </td></tr></tbody></table></div><p>
This request returns the current acceleration and threshold for the pointer.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:SetScreenSaver"></a>SetScreenSaver</h2></div></div></div><a id="idp28566852" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>timeout</em></span>, <span class="emphasis"><em>interval</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>prefer-blanking</em></span>:
{ <span class="bold"><strong>Yes</strong></span>,
<span class="bold"><strong>No</strong></span>,
<span class="bold"><strong>Default</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>allow-exposures</em></span>:
{ <span class="bold"><strong>Yes</strong></span>,
<span class="bold"><strong>No</strong></span>,
<span class="bold"><strong>Default</strong></span>}

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
The timeout and interval are specified in seconds;
setting a value to -1 restores the default.
Other negative values generate a
<span class="bold"><strong>Value</strong></span>
error.
If the timeout value is zero,
screen-saver is disabled (but an activated screen-saver is not deactivated).
If the timeout value is nonzero,
screen-saver is enabled.
Once screen-saver is enabled,
if no input from the keyboard or pointer is generated for timeout seconds,
screen-saver is activated.
For each screen,
if blanking is preferred and the hardware supports video blanking,
the screen will simply go blank.
Otherwise,
if either exposures are allowed or the screen can be regenerated without
sending exposure events to clients,
the screen is changed in a server-dependent fashion to avoid phosphor burn.
Otherwise,
the state of the screens does not change, and screen-saver is not activated.
At the next keyboard or pointer input or at the next
<a class="link" href="#requests:ForceScreenSaver" title="ForceScreenSaver"><span class="bold"><strong>ForceScreenSaver</strong></span></a>
with mode
<span class="bold"><strong>Reset</strong></span>,
screen-saver is deactivated, and all screen states are restored.
</p><p>
If the server-dependent screen-saver method is amenable to periodic change,
interval serves as a hint about how long the change period should be,
with zero hinting that no periodic change should be made.
Examples of ways to change the screen include scrambling the color map
periodically, moving an icon image about the screen periodically, or
tiling the screen with the root window background tile,
randomly reorigined periodically.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:GetScreenSaver"></a>GetScreenSaver</h2></div></div></div><a id="idp28579988" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

timeout, interval: CARD16
      </td></tr><tr><td align="left">
prefer-blanking:
{ <span class="bold"><strong>Yes</strong></span>,
<span class="bold"><strong>No</strong></span>}
      </td></tr><tr><td align="left">
allow-exposures:
{ <span class="bold"><strong>Yes</strong></span>,
<span class="bold"><strong>No</strong></span>}


      </td></tr></tbody></table></div><p>
This request returns the current screen-saver control values.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ForceScreenSaver"></a>ForceScreenSaver</h2></div></div></div><a id="idp28587500" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>mode</em></span>:
{ <span class="bold"><strong>Activate</strong></span>,
<span class="bold"><strong>Reset</strong></span>}

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
If the mode is
<span class="bold"><strong>Activate</strong></span>
and screen-saver is currently deactivated,
then screen-saver is activated (even if screen-saver has been disabled with
a timeout value of zero).
If the mode is
<span class="bold"><strong>Reset</strong></span>
and screen-saver is currently enabled,
then screen-saver is deactivated (if it was activated),
and the activation timer is reset to its initial state
as if device input had just been received.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ChangeHosts"></a>ChangeHosts</h2></div></div></div><a id="idp28595372" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>mode</em></span>:
{ <span class="bold"><strong>Insert</strong></span>,
<span class="bold"><strong>Delete</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>host</em></span>: HOST

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Access</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request adds or removes the specified host from the access control list.
<a id="idp28602572" class="indexterm"></a>
When the access control mechanism is enabled and a client attempts to
establish a connection to the server,
the host on which the client resides must be in the access control list,
or the client must have been granted permission by a server-dependent
method, or the server will refuse the connection.
</p><p>
The client must reside on the same host as the server and/or have been granted
permission by a server-dependent method to execute this request (or an
<span class="bold"><strong>Access</strong></span>
error results).
</p><p>
An initial access control list can usually be specified,
typically by naming a file that the server reads at startup and reset.
</p><p><a id="address_families"></a>
The following address families are defined.
<a id="idp28604804" class="indexterm"></a>
A server is not required to support these families
and may support families not listed here.
Use of an unsupported family, an improper address format,
or an improper address length within a supported family results in a
<span class="bold"><strong>Value</strong></span>
error.
</p><p>
For the Internet family,
the address must be four bytes long.
The address bytes are in standard IP order;
the server performs no automatic swapping on the address bytes.
The Internet family supports IP version 4 addresses only.
</p><p>
For the InternetV6 family, the address must be sixteen bytes
long.  The address bytes are in standard IP order; the
server performs no automatic swapping on the address bytes.
The InternetV6 family supports IP version 6 addresses only.
</p><p>
For the DECnet family,
the server performs no automatic swapping on the address bytes.
A Phase IV address is two bytes long:
the first byte contains the least significant eight bits of the node number,
and the second byte contains the most significant two bits of the node number in
the least significant two bits of the byte and the area in the most
significant six bits of the byte.
</p><p>
For the Chaos family,
the address must be two bytes long.
The host number is always the first byte in the address,
and the subnet number is always the second byte.
The server performs no automatic swapping on the address bytes.
</p><p>
For the ServerInterpreted family, the address may be of any
length up to 65535 bytes.  The address consists of two strings
of ASCII characters, separated by a byte with a value of 0.
The first string represents the type of address, and the second
string contains the address value.  Address types and the syntax
for their associated values will be registered via the X.Org Registry.
Implementors who wish to add implementation specific types may register
a unique prefix with the X.Org registry to prevent namespace
collisions.
</p><p>
Use of a host address in the ChangeHosts request is deprecated.  It is
only useful when a host has a unique, constant address, a requirement
that is increasingly unmet as sites adopt dynamically assigned
addresses, network address translation gateways, IPv6 link local
addresses, and various other technologies.  It also assumes all users of
a host share equivalent access rights, and as such has never been
suitable for many multi-user machine environments.  Instead, more
secure forms of authentication, such as those based on shared secrets
or public key encryption, are recommended.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:ListHosts"></a>ListHosts</h2></div></div></div><a id="idp28610292" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
   ▶
      </td></tr><tr><td align="left">

mode:
{ <span class="bold"><strong>Enabled</strong></span>,
<span class="bold"><strong>Disabled</strong></span>}
      </td></tr><tr><td align="left">
hosts: LISTofHOST


      </td></tr></tbody></table></div><p>
This request returns the hosts on the access control list
and whether use of the list at connection setup is currently
enabled or disabled.
</p><p>
Each HOST is padded to a multiple of four bytes.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:SetAccessControl"></a>SetAccessControl</h2></div></div></div><a id="idp28616916" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>mode</em></span>:
{ <span class="bold"><strong>Enable</strong></span>,
<span class="bold"><strong>Disable</strong></span>}

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Access</strong></span>,
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request enables or disables the use of the access control list
at connection setups.
</p><p>
The client must reside on the same host as the server
and/or have been granted permission by a server-dependent method
to execute this request (or an
<span class="bold"><strong>Access</strong></span>
error results).

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:SetCloseDownMode"></a>SetCloseDownMode</h2></div></div></div><a id="idp28624908" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>mode</em></span>:
{ <span class="bold"><strong>Destroy</strong></span>,
<span class="bold"><strong>RetainPermanent</strong></span>,
<span class="bold"><strong>RetainTemporary</strong></span>}

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
This request defines what will happen to the client's resources
at connection close.
A connection starts in
<span class="bold"><strong>Destroy</strong></span>
mode.
The meaning of the close-down mode is described
in <a class="link" href="#Connection_Close" title="Chapter 10. Connection Close">section 10</a>.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:KillClient"></a>KillClient</h2></div></div></div><a id="idp28632964" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">

<span class="emphasis"><em>resource</em></span>: CARD32 or
<span class="bold"><strong>AllTemporary</strong></span>

      </td></tr><tr><td align="left">

Errors:
<span class="bold"><strong>Value</strong></span>


      </td></tr></tbody></table></div><p>
If a valid resource is specified,
<a class="link" href="#requests:KillClient" title="KillClient"><span class="bold"><strong>KillClient</strong></span></a>
forces a close-down of the client that created the resource.
If the client has already terminated in either
<span class="bold"><strong>RetainPermanent</strong></span>
or
<span class="bold"><strong>RetainTemporary</strong></span>
mode, all of the client's resources are destroyed
(see <a class="link" href="#Connection_Close" title="Chapter 10. Connection Close">section 10</a>).
If
<span class="bold"><strong>AllTemporary</strong></span>
is specified,
then the resources of all clients that have terminated in
<span class="bold"><strong>RetainTemporary</strong></span>
are destroyed.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="requests:NoOperation"></a>NoOperation</h2></div></div></div><a id="idp28642068" class="indexterm"></a><p>
This request has no arguments and no results,
but the request length field
allows the request to be any multiple of four bytes in length.
The bytes contained in the request are uninterpreted by the server.
</p><p>
This request can be used in its minimum four byte form as padding where
necessary by client libraries that find it convenient to force requests
to begin on 64-bit boundaries.
</p></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="Connection_Close"></a>Chapter 10. Connection Close</h1></div></div></div><a id="idp28644060" class="indexterm"></a><p>
At connection close,
all event selections made by the client are discarded.
If the client has the pointer actively grabbed, an
<a class="link" href="#requests:UngrabPointer" title="UngrabPointer"><span class="bold"><strong>UngrabPointer</strong></span></a>
is performed.
If the client has the keyboard actively grabbed, an
<a class="link" href="#requests:UngrabKeyboard" title="UngrabKeyboard"><span class="bold"><strong>UngrabKeyboard</strong></span></a>
is performed.
All passive grabs by the client are released.
If the client has the server grabbed, an
<a class="link" href="#requests:UngrabServer" title="UngrabServer"><span class="bold"><strong>UngrabServer</strong></span></a>
is performed.
All selections (see
<a class="link" href="#requests:SetSelectionOwner" title="SetSelectionOwner"><span class="bold"><strong>SetSelectionOwner</strong></span></a>
request)
owned by the client are disowned.
If close-down mode (see
<a class="link" href="#requests:SetCloseDownMode" title="SetCloseDownMode"><span class="bold"><strong>SetCloseDownMode</strong></span></a>
request) is
<span class="bold"><strong>RetainPermanent</strong></span>
or
<span class="bold"><strong>RetainTemporary</strong></span>,
then all resources (including colormap entries)
allocated by the client are marked as permanent or temporary,
respectively (but this does not prevent other clients from explicitly
destroying them).
If the mode is
<span class="bold"><strong>Destroy</strong></span>,
all of the client's resources are destroyed.
</p><p>
When a client's resources are destroyed,
for each window in the client's save-set,
if the window is an inferior of a window created by the client,
the save-set window is reparented to the closest ancestor such that
the save-set window is not an inferior of a window created by the client.
If the save-set window is unmapped, a
<a class="link" href="#requests:MapWindow" title="MapWindow"><span class="bold"><strong>MapWindow</strong></span></a>
request is performed on it (even if it was not an inferior
of a window created by the client).
The reparenting leaves unchanged the absolute coordinates
(with respect to the root window) of the upper-left outer corner of the
save-set window.
After save-set processing,
all windows created by the client are destroyed.
For each nonwindow resource created by the client,
the appropriate
<span class="bold"><strong>Free</strong></span>
request is performed.
All colors and colormap entries allocated by the client are freed.
</p><p>
A server goes through a cycle of having no connections and having some
connections.
At every transition to the state of having no connections
as a result of a connection closing with a
<span class="bold"><strong>Destroy</strong></span>
close-down mode,
the server resets its state as if it had just been started.
This starts by destroying all lingering resources from clients
that have terminated in
<span class="bold"><strong>RetainPermanent</strong></span>
or
<span class="bold"><strong>RetainTemporary</strong></span>
mode.
It additionally includes deleting all but the predefined atom identifiers,
deleting all properties on all root windows, resetting all device maps and
attributes (key click, bell volume, acceleration), resetting the access
control list, restoring the standard root tiles and cursors, restoring
the default font path, and restoring the input focus to state
<span class="bold"><strong>PointerRoot</strong></span>.
</p><p>
Note that closing a connection with a close-down mode of
<span class="bold"><strong>RetainPermanent</strong></span>
or
<span class="bold"><strong>RetainTemporary</strong></span>
will not cause the server to reset.
</p></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="Events"></a>Chapter 11. Events</h1></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="#events:input">Input Device events</a></span></dt><dt><span class="section"><a href="#events:pointer_window">Pointer Window events</a></span></dt><dt><span class="section"><a href="#events:input_focus">Input Focus events</a></span></dt><dt><span class="section"><a href="#events:KeymapNotify">KeymapNotify</a></span></dt><dt><span class="section"><a href="#events:Expose">Expose</a></span></dt><dt><span class="section"><a href="#events:GraphicsExposure">GraphicsExposure</a></span></dt><dt><span class="section"><a href="#events:NoExposure">NoExposure</a></span></dt><dt><span class="section"><a href="#events:VisibilityNotify">VisibilityNotify</a></span></dt><dt><span class="section"><a href="#events:CreateNotify">CreateNotify</a></span></dt><dt><span class="section"><a href="#events:DestroyNotify">DestroyNotify</a></span></dt><dt><span class="section"><a href="#events:UnmapNotify">UnmapNotify</a></span></dt><dt><span class="section"><a href="#events:MapNotify">MapNotify</a></span></dt><dt><span class="section"><a href="#events:MapRequest">MapRequest</a></span></dt><dt><span class="section"><a href="#events:ReparentNotify">ReparentNotify</a></span></dt><dt><span class="section"><a href="#events:ConfigureNotify">ConfigureNotify</a></span></dt><dt><span class="section"><a href="#events:GravityNotify">GravityNotify</a></span></dt><dt><span class="section"><a href="#events:ResizeRequest">ResizeRequest</a></span></dt><dt><span class="section"><a href="#events:ConfigureRequest">ConfigureRequest</a></span></dt><dt><span class="section"><a href="#events:CirculateNotify">CirculateNotify</a></span></dt><dt><span class="section"><a href="#events:CirculateRequest">CirculateRequest</a></span></dt><dt><span class="section"><a href="#events:PropertyNotify">PropertyNotify</a></span></dt><dt><span class="section"><a href="#events:SelectionClear">SelectionClear</a></span></dt><dt><span class="section"><a href="#events:SelectionRequest">SelectionRequest</a></span></dt><dt><span class="section"><a href="#events:SelectionNotify">SelectionNotify</a></span></dt><dt><span class="section"><a href="#events:ColormapNotify">ColormapNotify</a></span></dt><dt><span class="section"><a href="#events:MappingNotify">MappingNotify</a></span></dt><dt><span class="section"><a href="#events:ClientMessage">ClientMessage</a></span></dt></dl></div><p>
<a id="idp28656460" class="indexterm"></a>
When a button press is processed with the pointer in some window W
and no active pointer grab is in progress,
the ancestors of W are searched from the root down,
looking for a passive grab to activate.
If no matching passive grab on the button exists,
then an active grab is started automatically for the client receiving the event,
and the last-pointer-grab time is set to the current server time.
The effect is essentially equivalent to a
<a class="link" href="#requests:GrabButton" title="GrabButton"><span class="bold"><strong>GrabButton</strong></span></a>
with arguments:
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Argument</th><th align="left">Value</th></tr></thead><tbody><tr><td align="left">event-window</td><td align="left">Event window</td></tr><tr><td align="left">event-mask</td><td align="left">
Client's selected pointer events on the event window
      </td></tr><tr><td align="left">pointer-mode and keyboard-mode</td><td align="left">
<span class="bold"><strong>Asynchronous</strong></span>
      </td></tr><tr><td align="left">owner-events</td><td align="left">
<span class="bold"><strong>True</strong></span>
if the client has
<span class="bold"><strong>OwnerGrabButton</strong></span>
selected on the event window, otherwise
<span class="bold"><strong>False</strong></span>
      </td></tr><tr><td align="left">confine-to</td><td align="left">
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">cursor</td><td align="left">
<span class="bold"><strong>None</strong></span>
      </td></tr></tbody></table></div><p>
The grab is terminated automatically when the logical state of the pointer
has all buttons released.
<a class="link" href="#requests:UngrabPointer" title="UngrabPointer"><span class="bold"><strong>UngrabPointer</strong></span></a>
and
<a class="link" href="#requests:ChangeActivePointerGrab" title="ChangeActivePointerGrab"><span class="bold"><strong>ChangeActivePointerGrab</strong></span></a>
can both be used to modify the active grab.

</p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:input"></a>Input Device events</h2></div></div></div><a id="idp28669940" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left"><a id="events:KeyPress"></a>
<a id="idp28672796" class="indexterm"></a>
<span class="bold"><strong>KeyPress</strong></span>
      </td></tr><tr><td align="left"><a id="events:KeyRelease"></a>
<a id="idp28674316" class="indexterm"></a>
<span class="bold"><strong>KeyRelease</strong></span>
      </td></tr><tr><td align="left"><a id="events:ButtonPress"></a>
<a id="idp28675836" class="indexterm"></a>
<span class="bold"><strong>ButtonPress</strong></span>
      </td></tr><tr><td align="left"><a id="events:ButtonRelease"></a>
<a id="idp28677364" class="indexterm"></a>
<span class="bold"><strong>ButtonRelease</strong></span>
      </td></tr><tr><td align="left"><a id="events:MotionNotify"></a>
<a id="idp28678908" class="indexterm"></a>
<span class="bold"><strong>MotionNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>root</em></span>, <span class="emphasis"><em>event</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>child</em></span>: WINDOW or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>same-screen</em></span>: BOOL
      </td></tr><tr><td align="left">
<span class="emphasis"><em>root-x</em></span>, <span class="emphasis"><em>root-y</em></span>, <span class="emphasis"><em>event-x</em></span>, <span class="emphasis"><em>event-y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>detail</em></span>: &lt;see below&gt;
      </td></tr><tr><td align="left">
<span class="emphasis"><em>state</em></span>: SETofKEYBUTMASK
      </td></tr><tr><td align="left">
<span class="emphasis"><em>time</em></span>: TIMESTAMP


      </td></tr></tbody></table></div><p>
These events are generated either when a key or button logically changes state
or when the pointer logically moves.
The generation of these logical changes may lag the physical changes
if device event processing is frozen.
Note that
<span class="bold"><strong>KeyPress</strong></span>
and
<span class="bold"><strong>KeyRelease</strong></span>
are generated for all keys, even those mapped to modifier bits.
<span class="phrase"><a id="events:input:source"></a>
The source of the event is the window the pointer is in.
</span>
<a id="idp28689820" class="indexterm"></a>
The window the event is reported with respect to is called the event window.
The event window is found by starting with the source window and
looking up the hierarchy for the first window on which any client has selected
interest in the event (provided no intervening window prohibits event
generation by including the event type in its do-not-propagate-mask).
The actual window used for reporting can be modified by active grabs and,
in the case of keyboard events, can be modified by the focus window.
</p><p>
The root is the root window of the source window,
and root-x and root-y are the pointer coordinates relative to root's origin
at the time of the event.
Event is the event window.
If the event window is on the same screen as root,
then event-x and event-y are the pointer coordinates relative to the
event window's origin.
Otherwise, event-x and event-y are zero.
If the source window is an inferior of the event window,
then child is set to the child of the event window that is an
ancestor of (or is) the source window.
Otherwise, it is set to
<span class="bold"><strong>None</strong></span>.
The state component gives the logical state of the buttons and modifier keys
just before the event.
The detail component type varies with the event type:
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Event</th><th align="left">Component</th></tr></thead><tbody><tr><td align="left">
<span class="bold"><strong>KeyPress</strong></span>,
<span class="bold"><strong>KeyRelease</strong></span>
      </td><td align="left">KEYCODE</td></tr><tr><td align="left">
<span class="bold"><strong>ButtonPress</strong></span>,
<span class="bold"><strong>ButtonRelease</strong></span>
      </td><td align="left">BUTTON</td></tr><tr><td align="left">
<span class="bold"><strong>MotionNotify</strong></span>
      </td><td align="left">
{ <span class="bold"><strong>Normal</strong></span>
<span class="bold"><strong>Hint</strong></span> }
      </td></tr></tbody></table></div><p>
<span class="bold"><strong>MotionNotify</strong></span>
events are only generated when the motion begins and ends in the window.
The granularity of motion events is not guaranteed,
but a client selecting for motion events is guaranteed to get at least one
event when the pointer moves and comes to rest.
Selecting
<span class="bold"><strong>PointerMotion</strong></span>
receives events independent of the state of the pointer buttons.
By selecting some subset of
<span class="bold"><strong>Button[1-5]Motion</strong></span>
instead,
<span class="bold"><strong>MotionNotify</strong></span>
events will only be received when one or more of the
specified buttons are pressed.
By selecting
<span class="bold"><strong>ButtonMotion</strong></span>,
<span class="bold"><strong>MotionNotify</strong></span>
events will be received only when at least one button is pressed.
The events are always of type
<span class="bold"><strong>MotionNotify</strong></span>,
independent of the selection.
If
<span class="bold"><strong>PointerMotionHint</strong></span>
is selected,
the server is free to send only one
<span class="bold"><strong>MotionNotify</strong></span>
event (with detail
<span class="bold"><strong>Hint</strong></span>)
to the client for the event window until
either the key or button state changes,
the pointer leaves the event window,
or the client issues a
<a class="link" href="#requests:QueryPointer" title="QueryPointer"><span class="bold"><strong>QueryPointer</strong></span></a>
or
<a class="link" href="#requests:GetMotionEvents" title="GetMotionEvents"><span class="bold"><strong>GetMotionEvents</strong></span></a>
request.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:pointer_window"></a>Pointer Window events</h2></div></div></div><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left"><a id="events:EnterNotify"></a>
<a id="idp28708892" class="indexterm"></a>
<span class="bold"><strong>EnterNotify</strong></span>
      </td></tr><tr><td align="left"><a id="events:LeaveNotify"></a>
<a id="idp28710412" class="indexterm"></a>
<span class="bold"><strong>LeaveNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>root</em></span>, <span class="emphasis"><em>event</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>child</em></span>: WINDOW or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>same-screen</em></span>: BOOL
      </td></tr><tr><td align="left">
<span class="emphasis"><em>root-x</em></span>, <span class="emphasis"><em>root-y</em></span>, <span class="emphasis"><em>event-x</em></span>, <span class="emphasis"><em>event-y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>mode</em></span>:
{ <span class="bold"><strong>Normal</strong></span>,
<span class="bold"><strong>Grab</strong></span>,
<span class="bold"><strong>Ungrab</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>detail</em></span>:
{ <span class="bold"><strong>Ancestor</strong></span>,
<span class="bold"><strong>Virtual</strong></span>,
<span class="bold"><strong>Inferior</strong></span>,
<span class="bold"><strong>Nonlinear</strong></span>,
<span class="bold"><strong>NonlinearVirtual</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>focus</em></span>: BOOL
      </td></tr><tr><td align="left">
<span class="emphasis"><em>state</em></span>: SETofKEYBUTMASK
      </td></tr><tr><td align="left">
<span class="emphasis"><em>time</em></span>: TIMESTAMP


      </td></tr></tbody></table></div><p>
If pointer motion or window hierarchy change causes the pointer to be
in a different window than before,
<span class="bold"><strong>EnterNotify</strong></span>
and
<span class="bold"><strong>LeaveNotify</strong></span>
events are generated instead of a
<a class="link" href="#events:MotionNotify"><span class="bold"><strong>MotionNotify</strong></span></a>
event.
Only clients selecting
<span class="bold"><strong>EnterWindow</strong></span>
on a window receive
<span class="bold"><strong>EnterNotify</strong></span>
events, and only clients selecting
<span class="bold"><strong>LeaveWindow</strong></span>
receive
<span class="bold"><strong>LeaveNotify</strong></span>
events.
The pointer position reported in the event is always the final position,
not the initial position of the pointer.
The root is the root window for this position,
and root-x and root-y are the pointer coordinates relative to root's
origin at the time of the event.
Event is the event window.
If the event window is on the same screen as root,
then event-x and event-y are the pointer coordinates relative
to the event window's origin.
Otherwise, event-x and event-y are zero.
In a
<span class="bold"><strong>LeaveNotify</strong></span>
event, if a child of the event window contains the initial position of the
pointer, then the child component is set to that child.
Otherwise, it is
<span class="bold"><strong>None</strong></span>.
For an
<span class="bold"><strong>EnterNotify</strong></span>
event, if a child of the event window contains the final pointer position,
then the child component is set to that child.
Otherwise, it is
<span class="bold"><strong>None</strong></span>.
If the event window is the focus window or an inferior of the focus window,
then focus is
<span class="bold"><strong>True</strong></span>.
Otherwise, focus is
<span class="bold"><strong>False</strong></span>.
</p><p>
Normal pointer motion events have mode
<span class="bold"><strong>Normal</strong></span>.
Pseudo-motion events when a grab activates have mode
<span class="bold"><strong>Grab</strong></span>,
and pseudo-motion events when a grab deactivates have mode
<span class="bold"><strong>Ungrab</strong></span>.
</p><p>
All
<span class="bold"><strong>EnterNotify</strong></span>
and
<span class="bold"><strong>LeaveNotify</strong></span>
events caused by a hierarchy change are generated after any hierarchy event
caused by that change (that is,
<a class="link" href="#events:UnmapNotify" title="UnmapNotify"><span class="bold"><strong>UnmapNotify</strong></span></a>,
<a class="link" href="#events:MapNotify" title="MapNotify"><span class="bold"><strong>MapNotify</strong></span></a>,
<a class="link" href="#events:ConfigureNotify" title="ConfigureNotify"><span class="bold"><strong>ConfigureNotify</strong></span></a>,
<a class="link" href="#events:GravityNotify" title="GravityNotify"><span class="bold"><strong>GravityNotify</strong></span></a>,
<a class="link" href="#events:CirculateNotify" title="CirculateNotify"><span class="bold"><strong>CirculateNotify</strong></span></a>),
but the ordering of
<span class="bold"><strong>EnterNotify</strong></span>
and
<span class="bold"><strong>LeaveNotify</strong></span>
events with respect to
<a class="link" href="#events:FocusOut"><span class="bold"><strong>FocusOut</strong></span></a>,
<a class="link" href="#events:VisibilityNotify" title="VisibilityNotify"><span class="bold"><strong>VisibilityNotify</strong></span></a>,
and
<a class="link" href="#events:Expose" title="Expose"><span class="bold"><strong>Expose</strong></span></a>
events is not constrained.
</p><p>
Normal events are generated as follows:
</p><p>
When the pointer moves from window A to window B and A is an inferior
of B:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
<span class="bold"><strong>LeaveNotify</strong></span>
with detail
<span class="bold"><strong>Ancestor</strong></span>
is generated on A.
    </p></li><li class="listitem"><p>
<span class="bold"><strong>LeaveNotify</strong></span>
with detail
<span class="bold"><strong>Virtual</strong></span>
is generated on each window between A and B exclusive (in that order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>EnterNotify</strong></span>
with detail
<span class="bold"><strong>Inferior</strong></span>
is generated on B.
    </p></li></ul></div><p>
When the pointer moves from window A to window B and B is an inferior
of A:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>

<span class="bold"><strong>LeaveNotify</strong></span>
with detail
<span class="bold"><strong>Inferior</strong></span>
is generated on A.
    </p></li><li class="listitem"><p>
<span class="bold"><strong>EnterNotify</strong></span>
with detail
<span class="bold"><strong>Virtual</strong></span>
is generated on each window between A and B exclusive (in that order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>EnterNotify</strong></span>
with detail
<span class="bold"><strong>Ancestor</strong></span>
is generated on B.
    </p></li></ul></div><p>
When the pointer moves from window A to window B and window C is
their least common ancestor:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
<span class="bold"><strong>LeaveNotify</strong></span>
with detail
<span class="bold"><strong>Nonlinear</strong></span>
is generated on A.
    </p></li><li class="listitem"><p>
<span class="bold"><strong>LeaveNotify</strong></span>
with detail
<span class="bold"><strong>NonlinearVirtual</strong></span>
is generated on each window between A and C exclusive (in that order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>EnterNotify</strong></span>
with detail
<span class="bold"><strong>NonlinearVirtual</strong></span>
is generated on each window between C and B exclusive (in that order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>EnterNotify</strong></span>
with detail
<span class="bold"><strong>Nonlinear</strong></span>
is generated on B.
    </p></li></ul></div><p>
When the pointer moves from window A to window B on different screens:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
<span class="bold"><strong>LeaveNotify</strong></span>
with detail
<span class="bold"><strong>Nonlinear</strong></span>
is generated on A.
    </p></li><li class="listitem"><p>
If A is not a root window,
<span class="bold"><strong>LeaveNotify</strong></span>
with detail
<span class="bold"><strong>NonlinearVirtual</strong></span>
is generated on each window above A up to and including its root (in order).
    </p></li><li class="listitem"><p>
If B is not a root window,
<span class="bold"><strong>EnterNotify</strong></span>
with detail
<span class="bold"><strong>NonlinearVirtual</strong></span>
is generated on each window from B's root down to but not including B
(in order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>EnterNotify</strong></span>
with detail
<span class="bold"><strong>Nonlinear</strong></span>
is generated on B.
    </p></li></ul></div><p>
When a pointer grab activates (but after any initial warp into a confine-to
window and before generating any actual
<a class="link" href="#events:ButtonPress"><span class="bold"><strong>ButtonPress</strong></span></a>
event that activates the grab),
G is the grab-window for the grab, and P is the window the pointer is in:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
<span class="bold"><strong>EnterNotify</strong></span>
and
<span class="bold"><strong>LeaveNotify</strong></span>
events with mode
<span class="bold"><strong>Grab</strong></span>
are generated (as for
<span class="bold"><strong>Normal</strong></span>
above) as if the pointer were to suddenly warp from its current
position in P to some position in G.
However, the pointer does not warp,
and the pointer position is used as both the initial
and final positions for the events.
    </p></li></ul></div><p>
When a pointer grab deactivates (but after generating any actual
<a class="link" href="#events:ButtonRelease"><span class="bold"><strong>ButtonRelease</strong></span></a>
event that deactivates the grab), G is the grab-window for
the grab, and P is the window the pointer is in:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
<span class="bold"><strong>EnterNotify</strong></span>
and
<span class="bold"><strong>LeaveNotify</strong></span>
events with mode
<span class="bold"><strong>Ungrab</strong></span>
are generated (as for
<span class="bold"><strong>Normal</strong></span>
above) as if the pointer were to suddenly warp from
some position in G to its current position in P.
However, the pointer does not warp,
and the current pointer position is used as both the initial
and final positions for the events.
    </p></li></ul></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:input_focus"></a>Input Focus events</h2></div></div></div><a id="idp28765364" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left"><a id="events:FocusIn"></a>
<a id="idp28768212" class="indexterm"></a>
<span class="bold"><strong>FocusIn</strong></span>
      </td></tr><tr><td align="left"><a id="events:FocusOut"></a>
<a id="idp28769732" class="indexterm"></a>
<span class="bold"><strong>FocusOut</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>event</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>mode</em></span>:
{ <span class="bold"><strong>Normal</strong></span>,
<span class="bold"><strong>WhileGrabbed</strong></span>,
<span class="bold"><strong>Grab</strong></span>,
<span class="bold"><strong>Ungrab</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>detail</em></span>:
{ <span class="bold"><strong>Ancestor</strong></span>,
<span class="bold"><strong>Virtual</strong></span>,
<span class="bold"><strong>Inferior</strong></span>,
<span class="bold"><strong>Nonlinear</strong></span>,
<span class="bold"><strong>NonlinearVirtual</strong></span>,
<span class="bold"><strong>Pointer</strong></span>,
      </td></tr><tr><td align="left">
<span class="bold"><strong>PointerRoot</strong></span>,
<span class="bold"><strong>None</strong></span> }


      </td></tr></tbody></table></div><p>
These events are generated when the input focus changes
and are reported to clients selecting
<span class="bold"><strong>FocusChange</strong></span>
on the window.
Events generated by
<a class="link" href="#requests:SetInputFocus" title="SetInputFocus"><span class="bold"><strong>SetInputFocus</strong></span></a>
when the keyboard is not grabbed have mode
<span class="bold"><strong>Normal</strong></span>.
Events generated by
<span class="bold"><strong>SetInputFocus</strong></span>
when the keyboard is grabbed have mode
<span class="bold"><strong>WhileGrabbed</strong></span>.
Events generated when a keyboard grab activates have mode
<span class="bold"><strong>Grab</strong></span>,
and events generated when a keyboard grab deactivates have mode
<span class="bold"><strong>Ungrab</strong></span>.
</p><p>
All
<span class="bold"><strong>FocusOut</strong></span>
events caused by a window unmap are generated after any
<a class="link" href="#events:UnmapNotify" title="UnmapNotify"><span class="bold"><strong>UnmapNotify</strong></span></a>
event, but the ordering of
<span class="bold"><strong>FocusOut</strong></span>
with respect to generated
<a class="link" href="#events:EnterNotify"><span class="bold"><strong>EnterNotify</strong></span></a>,
<a class="link" href="#events:LeaveNotify"><span class="bold"><strong>LeaveNotify</strong></span></a>,
<a class="link" href="#events:VisibilityNotify" title="VisibilityNotify"><span class="bold"><strong>VisibilityNotify</strong></span></a>,
and
<a class="link" href="#events:Expose" title="Expose"><span class="bold"><strong>Expose</strong></span></a>
events is not constrained.
</p><p>
<span class="bold"><strong>Normal</strong></span>
and
<span class="bold"><strong>WhileGrabbed</strong></span>
events are generated as follows:
</p><p>
When the focus moves from window A to window B, A is an inferior of B,
and the pointer is in window P:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>Ancestor</strong></span>
is generated on A.
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>Virtual</strong></span>
is generated on each window between A and B exclusive (in order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>Inferior</strong></span>
is generated on B.
    </p></li><li class="listitem"><p>
If P is an inferior of B
but P is not A or an inferior of A or an ancestor of A,
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>Pointer</strong></span>
is generated on each window below B down to and including P (in order).
    </p></li></ul></div><p>
When the focus moves from window A to window B, B is an inferior of A,
and the pointer is in window P:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
If P is an inferior of A
but P is not an inferior of B or an ancestor of B,
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>Pointer</strong></span>
is generated on each window from P up to but not including A (in order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>Inferior</strong></span>
is generated on A.
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>Virtual</strong></span>
is generated on each window between A and B exclusive (in order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>Ancestor</strong></span>
is generated on B.
    </p></li></ul></div><p>
When the focus moves from window A to window B, window C is their
least common ancestor, and the pointer is in window P:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
If P is an inferior of A,
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>Pointer</strong></span>
is generated on each window from P up to but not including A (in order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>Nonlinear</strong></span>
is generated on A.
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>NonlinearVirtual</strong></span>
is generated on each window between A and C exclusive (in order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>NonlinearVirtual</strong></span>
is generated on each window between C and B exclusive (in order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>Nonlinear</strong></span>
is generated on B.
    </p></li><li class="listitem"><p>
If P is an inferior of B,
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>Pointer</strong></span>
is generated on each window below B down to and including P (in order).
    </p></li></ul></div><p>
When the focus moves from window A to window B on different screens
and the pointer is in window P:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
If P is an inferior of A,
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>Pointer</strong></span>
is generated on each window from P up to but not including A (in order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>Nonlinear</strong></span>
is generated on A.
    </p></li><li class="listitem"><p>
If A is not a root window,
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>NonlinearVirtual</strong></span>
is generated on each window above A up to and including its root (in order).
    </p></li><li class="listitem"><p>
If B is not a root window,
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>NonlinearVirtual</strong></span>
is generated on each window from B's root down to but not including B
(in order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>Nonlinear</strong></span>
is generated on B.
    </p></li><li class="listitem"><p>
If P is an inferior of B,
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>Pointer</strong></span>
is generated on each window below B down to and including P (in order).
    </p></li></ul></div><p>
When the focus moves from window A to
<span class="bold"><strong>PointerRoot</strong></span>
(or
<span class="bold"><strong>None</strong></span>)
and the pointer is in window P:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
If P is an inferior of A,
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>Pointer</strong></span>
is generated on each window from P up to but not including A (in order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>Nonlinear</strong></span>
is generated on A.
    </p></li><li class="listitem"><p>
If A is not a root window,
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>NonlinearVirtual</strong></span>
is generated on each window above A up to and including its root (in order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>PointerRoot</strong></span>
(or
<span class="bold"><strong>None</strong></span>)
is generated on all root windows.
    </p></li><li class="listitem"><p>
If the new focus is
<span class="bold"><strong>PointerRoot</strong></span>,
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>Pointer</strong></span>
is generated on each window from P's root down to and including P (in order).
    </p></li></ul></div><p>
When the focus moves from
<span class="bold"><strong>PointerRoot</strong></span>
(or
<span class="bold"><strong>None</strong></span>)
to window A and the pointer is in window P:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
If the old focus is
<span class="bold"><strong>PointerRoot</strong></span>,
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>Pointer</strong></span>
is generated on each window from P up to and including P's root (in order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>PointerRoot</strong></span>
(or
<span class="bold"><strong>None</strong></span>)
is generated on all root windows.
    </p></li><li class="listitem"><p>
If A is not a root window,
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>NonlinearVirtual</strong></span>
is generated on each window from A's root down to but not including A
(in order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>Nonlinear</strong></span>
is generated on A.
    </p></li><li class="listitem"><p>
If P is an inferior of A,
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>Pointer</strong></span>
is generated on each window below A down to and including P (in order).
    </p></li></ul></div><p>
When the focus moves from
<span class="bold"><strong>PointerRoot</strong></span>
to
<span class="bold"><strong>None</strong></span>
(or vice versa) and the pointer is in window P:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
If the old focus is
<span class="bold"><strong>PointerRoot</strong></span>,
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>Pointer</strong></span>
is generated on each window from P up to and including P's root (in order).
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusOut</strong></span>
with detail
<span class="bold"><strong>PointerRoot</strong></span>
(or
<span class="bold"><strong>None</strong></span>)
is generated on all root windows.
    </p></li><li class="listitem"><p>
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>None</strong></span>
(or
<span class="bold"><strong>PointerRoot</strong></span>)
is generated on all root windows.
    </p></li><li class="listitem"><p>
If the new focus is
<span class="bold"><strong>PointerRoot</strong></span>,
<span class="bold"><strong>FocusIn</strong></span>
with detail
<span class="bold"><strong>Pointer</strong></span>
is generated on each window from P's root down to and including P (in order).
    </p></li></ul></div><p>
When a keyboard grab activates (but before generating any actual
<span class="bold"><strong>KeyPress</strong></span>
event that activates the grab), G is the grab-window for the grab,
and F is the current focus:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
<span class="bold"><strong>FocusIn</strong></span>
and
<span class="bold"><strong>FocusOut</strong></span>
events with mode
<span class="bold"><strong>Grab</strong></span>
are generated (as for
<span class="bold"><strong>Normal</strong></span>
above) as if the focus were to change from F to G.
    </p></li></ul></div><p>
When a keyboard grab deactivates (but after generating any actual
<span class="bold"><strong>KeyRelease</strong></span>
event that deactivates the grab), G is the grab-window for the grab,
and F is the current focus:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
<span class="bold"><strong>FocusIn</strong></span>
and
<span class="bold"><strong>FocusOut</strong></span>
events with mode
<span class="bold"><strong>Ungrab</strong></span>
are generated (as for
<span class="bold"><strong>Normal</strong></span>
above) as if the focus were to change from G to F.
    </p></li></ul></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:KeymapNotify"></a>KeymapNotify</h2></div></div></div><a id="idp28844260" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>KeymapNotify</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>keys</em></span>: LISTofCARD8
      </td></tr></tbody></table></div><p>
The value is a bit vector as described in
<a class="link" href="#requests:QueryKeymap" title="QueryKeymap"><span class="bold"><strong>QueryKeymap</strong></span></a>.
This event is reported to clients selecting
<span class="bold"><strong>KeymapState</strong></span>
on a window and is generated immediately after every
<a class="link" href="#events:EnterNotify"><span class="bold"><strong>EnterNotify</strong></span></a>
and
<a class="link" href="#events:FocusIn"><span class="bold"><strong>FocusIn</strong></span></a>.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:Expose"></a>Expose</h2></div></div></div><a id="idp28851588" class="indexterm"></a><a id="idp28852156" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>Expose</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>x</em></span>,
<span class="emphasis"><em>y</em></span>,
<span class="emphasis"><em>width</em></span>,
<span class="emphasis"><em>height</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>count</em></span>: CARD16


      </td></tr></tbody></table></div><p>
This event is reported to clients selecting
<span class="bold"><strong>Exposure</strong></span>
on the window.
It is generated when no valid contents are available for regions of a window,
and either the regions are visible, the regions are viewable
and the server is (perhaps newly) maintaining backing store on the window,
or the window is not viewable but the server is (perhaps newly) honoring
window's backing-store attribute of
<span class="bold"><strong>Always</strong></span>
or
<span class="bold"><strong>WhenMapped</strong></span>.
The regions are decomposed into an arbitrary set of rectangles,
and an
<span class="bold"><strong>Expose</strong></span>
event is generated for each rectangle.
</p><p>
For a given action causing exposure events,
the set of events for a given window are guaranteed to be reported contiguously.
If count is zero,
then no more
<span class="bold"><strong>Expose</strong></span>
events for this window follow.
If count is nonzero,
then at least that many more
<span class="bold"><strong>Expose</strong></span>
events for this window follow (and possibly more).
</p><p>
The x and y coordinates are relative to window's origin
and specify the upper-left corner of a rectangle.
The width and height specify the extent of the rectangle.
</p><p>
<span class="bold"><strong>Expose</strong></span>
events are never generated on
<span class="bold"><strong>InputOnly</strong></span>
windows.
</p><p>
All
<span class="bold"><strong>Expose</strong></span>
events caused by a hierarchy change are generated after any
hierarchy event caused by that change (for example,
<a class="link" href="#events:UnmapNotify" title="UnmapNotify"><span class="bold"><strong>UnmapNotify</strong></span></a>,
<a class="link" href="#events:MapNotify" title="MapNotify"><span class="bold"><strong>MapNotify</strong></span></a>,
<a class="link" href="#events:ConfigureNotify" title="ConfigureNotify"><span class="bold"><strong>ConfigureNotify</strong></span></a>,
<a class="link" href="#events:GravityNotify" title="GravityNotify"><span class="bold"><strong>GravityNotify</strong></span></a>,
<a class="link" href="#events:CirculateNotify" title="CirculateNotify"><span class="bold"><strong>CirculateNotify</strong></span></a>).
All
<span class="bold"><strong>Expose</strong></span>
events on a given window are generated after any
<a class="link" href="#events:VisibilityNotify" title="VisibilityNotify"><span class="bold"><strong>VisibilityNotify</strong></span></a>
event on that window,
but it is not required that all
<span class="bold"><strong>Expose</strong></span>
events on all windows be generated after all
<span class="bold"><strong>Visibilitity</strong></span>
events on all windows.
The ordering of
<span class="bold"><strong>Expose</strong></span>
events with respect to
<a class="link" href="#events:FocusOut"><span class="bold"><strong>FocusOut</strong></span></a>,
<a class="link" href="#events:EnterNotify"><span class="bold"><strong>EnterNotify</strong></span></a>,
and
<a class="link" href="#events:LeaveNotify"><span class="bold"><strong>LeaveNotify</strong></span></a>
events is not constrained.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:GraphicsExposure"></a>GraphicsExposure</h2></div></div></div><a id="idp28872460" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>GraphicsExposure</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>, <span class="emphasis"><em>width</em></span>, <span class="emphasis"><em>height</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>count</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>major-opcode</em></span>: CARD8
      </td></tr><tr><td align="left">
<span class="emphasis"><em>minor-opcode</em></span>: CARD16


      </td></tr></tbody></table></div><p>
This event is reported to a client using a graphics context
with graphics-exposures selected
and is generated when a destination region could not be computed due
to an obscured or out-of-bounds source region.
All of the regions exposed by a given graphics request
are guaranteed to be reported contiguously.
If count is zero then no more
<span class="bold"><strong>GraphicsExposure</strong></span>
events for this window follow.
If count is nonzero,
then at least that many more
<span class="bold"><strong>GraphicsExposure</strong></span>
events for this window follow (and possibly more).
</p><p>
The x and y coordinates are relative to drawable's origin
and specify the upper-left corner of a rectangle.
The width and height specify the extent of the rectangle.
</p><p>
The major and minor opcodes identify the graphics request used.
For the core protocol,
major-opcode is always
<a class="link" href="#requests:CopyArea" title="CopyArea"><span class="bold"><strong>CopyArea</strong></span></a>
or
<a class="link" href="#requests:CopyPlane" title="CopyPlane"><span class="bold"><strong>CopyPlane</strong></span></a>,
and minor-opcode is always zero.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:NoExposure"></a>NoExposure</h2></div></div></div><a id="idp28885644" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>NoExposure</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>drawable</em></span>: DRAWABLE
      </td></tr><tr><td align="left">
<span class="emphasis"><em>major-opcode</em></span>: CARD8
      </td></tr><tr><td align="left">
<span class="emphasis"><em>minor-opcode:</em></span> CARD16


      </td></tr></tbody></table></div><p>
This event is reported to a client using a graphics context
with graphics-exposures selected
and is generated when a graphics request
that might produce
<a class="link" href="#events:GraphicsExposure" title="GraphicsExposure"><span class="bold"><strong>GraphicsExposure</strong></span></a>
events does not produce any.
The drawable specifies the destination used for the graphics request.
</p><p>
The major and minor opcodes identify the graphics request used.
For the core protocol,
major-opcode is always
<a class="link" href="#requests:CopyArea" title="CopyArea"><span class="bold"><strong>CopyArea</strong></span></a>
or
<a class="link" href="#requests:CopyPlane" title="CopyPlane"><span class="bold"><strong>CopyPlane</strong></span></a>,
and the minor-opcode is always zero.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:VisibilityNotify"></a>VisibilityNotify</h2></div></div></div><a id="idp28895372" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>VisibilityNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>state</em></span>:
{ <span class="bold"><strong>Unobscured</strong></span>,
<span class="bold"><strong>PartiallyObscured</strong></span>,
<span class="bold"><strong>FullyObscured</strong></span>}


      </td></tr></tbody></table></div><p>
This event is reported to clients selecting
<span class="bold"><strong>VisibilityChange</strong></span>
on the window.
In the following,
the state of the window is calculated ignoring all of the window's subwindows.
When a window changes state from partially or fully obscured or
not viewable to viewable and completely unobscured,
an event with
<span class="bold"><strong>Unobscured</strong></span>
is generated.
When a window changes state from viewable and completely unobscured,
from viewable and completely obscured,
or from not viewable, to viewable and partially obscured,
an event with
<span class="bold"><strong>PartiallyObscured</strong></span>
is generated.
When a window changes state from viewable and completely unobscured,
from viewable and partially obscured,
or from not viewable to viewable and fully obscured,
an event with
<span class="bold"><strong>FullyObscured</strong></span>
is generated.
</p><p>
<span class="bold"><strong>VisibilityNotify</strong></span>
events are never generated on
<span class="bold"><strong>InputOnly</strong></span>
windows.
</p><p>
All
<span class="bold"><strong>VisibilityNotify</strong></span>
events caused by a hierarchy change are generated after any hierarchy event
caused by that change (for example,
<a class="link" href="#events:UnmapNotify" title="UnmapNotify"><span class="bold"><strong>UnmapNotify</strong></span></a>,
<a class="link" href="#events:MapNotify" title="MapNotify"><span class="bold"><strong>MapNotify</strong></span></a>,
<a class="link" href="#events:ConfigureNotify" title="ConfigureNotify"><span class="bold"><strong>ConfigureNotify</strong></span></a>,
<a class="link" href="#events:GravityNotify" title="GravityNotify"><span class="bold"><strong>GravityNotify</strong></span></a>,
<a class="link" href="#events:CirculateNotify" title="CirculateNotify"><span class="bold"><strong>CirculateNotify</strong></span></a>).
Any
<span class="bold"><strong>VisibilityNotify</strong></span>
event on a given window is generated before any
<a class="link" href="#events:Expose" title="Expose"><span class="bold"><strong>Expose</strong></span></a>
events on that window,
but it is not required that all
<span class="bold"><strong>VisibilityNotify</strong></span>
events on all windows be generated before all
<span class="bold"><strong>Expose</strong></span>
events on all windows.
The ordering of
<span class="bold"><strong>VisibilityNotify</strong></span>
events with respect to
<a class="link" href="#events:FocusOut"><span class="bold"><strong>FocusOut</strong></span></a>,
<a class="link" href="#events:EnterNotify"><span class="bold"><strong>EnterNotify</strong></span></a>,
and
<a class="link" href="#events:LeaveNotify"><span class="bold"><strong>LeaveNotify</strong></span></a>
events is not constrained.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:CreateNotify"></a>CreateNotify</h2></div></div></div><a id="idp28913668" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>CreateNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>parent</em></span>, <span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>width</em></span>, <span class="emphasis"><em>height</em></span>, <span class="emphasis"><em>border-width</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>override-redirect</em></span>: BOOL


      </td></tr></tbody></table></div><p>
This event is reported to clients selecting
<span class="bold"><strong>SubstructureNotify</strong></span>
on the parent
and is generated when the window is created.
The arguments are as in the
<a class="link" href="#requests:CreateWindow" title="CreateWindow"><span class="bold"><strong>CreateWindow</strong></span></a>
request.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:DestroyNotify"></a>DestroyNotify</h2></div></div></div><a id="idp28924420" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>DestroyNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>event</em></span>, <span class="emphasis"><em>window</em></span>: WINDOW


      </td></tr></tbody></table></div><p>
This event is reported to clients selecting
<span class="bold"><strong>StructureNotify</strong></span>
on the window and to clients selecting
<span class="bold"><strong>SubstructureNotify</strong></span>
on the parent.
It is generated when the window is destroyed.
The event is the window on which the event was generated,
and the window is the window that is destroyed.
</p><p>
The ordering of the
<span class="bold"><strong>DestroyNotify</strong></span>
events is such that for any given window,
<span class="bold"><strong>DestroyNotify</strong></span>
is generated on all inferiors of the window
before being generated on the window itself.
The ordering among siblings and across subhierarchies is not
otherwise constrained.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:UnmapNotify"></a>UnmapNotify</h2></div></div></div><a id="idp28932692" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>UnmapNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>event</em></span>, <span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>from-configure</em></span>: BOOL


      </td></tr></tbody></table></div><p>
This event is reported to clients selecting
<span class="bold"><strong>StructureNotify</strong></span>
on the window and to clients selecting
<span class="bold"><strong>SubstructureNotify</strong></span>
on the parent.
It is generated when the window changes state from mapped to unmapped.
The event is the window on which the event was generated,
and the window is the window that is unmapped.
The from-configure flag is
<span class="bold"><strong>True</strong></span>
if the event was generated as a result of the window's parent being resized
when the window itself had a win-gravity of
<span class="bold"><strong>Unmap</strong></span>.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:MapNotify"></a>MapNotify</h2></div></div></div><a id="idp28941468" class="indexterm"></a><a id="idp28942036" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>MapNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>event</em></span>, <span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>override-redirect</em></span>: BOOL


      </td></tr></tbody></table></div><p>
This event is reported to clients selecting
<span class="bold"><strong>StructureNotify</strong></span>
on the window and to clients selecting
<span class="bold"><strong>SubstructureNotify</strong></span>
on the parent.
It is generated when the window changes state from unmapped to mapped.
The event is the window on which the event was generated,
and the window is the window that is mapped.
The override-redirect flag is from the window's attribute.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:MapRequest"></a>MapRequest</h2></div></div></div><a id="idp28949884" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>MapRequest</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>parent</em></span>, <span class="emphasis"><em>window</em></span>: WINDOW


      </td></tr></tbody></table></div><p>
This event is reported to the client selecting
<span class="bold"><strong>SubstructureRedirect</strong></span>
on the parent and is generated when a
<a class="link" href="#requests:MapWindow" title="MapWindow"><span class="bold"><strong>MapWindow</strong></span></a>
request is issued on an unmapped window with an override-redirect attribute of
<span class="bold"><strong>False</strong></span>.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:ReparentNotify"></a>ReparentNotify</h2></div></div></div><a id="idp28957452" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>ReparentNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>event</em></span>, <span class="emphasis"><em>window</em></span>, <span class="emphasis"><em>parent</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>override-redirect</em></span>: BOOL


      </td></tr></tbody></table></div><p>
This event is reported to clients selecting
<span class="bold"><strong>SubstructureNotify</strong></span>
on either the old or the new parent and to clients selecting
<span class="bold"><strong>StructureNotify</strong></span>
on the window.
It is generated when the window is reparented.
The event is the window on which the event was generated.
The window is the window that has been rerooted.
The parent specifies the new parent.
The x and y coordinates are relative to the new parent's origin
and specify the position of the upper-left outer corner of the window.
The override-redirect flag is from the window's attribute.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:ConfigureNotify"></a>ConfigureNotify</h2></div></div></div><a id="idp28967180" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>ConfigureNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>event</em></span>, <span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>width</em></span>, <span class="emphasis"><em>height</em></span>, <span class="emphasis"><em>border-width</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>above-sibling</em></span>: WINDOW or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>override-redirect</em></span>: BOOL


      </td></tr></tbody></table></div><p>
This event is reported to clients selecting
<span class="bold"><strong>StructureNotify</strong></span>
on the window and to clients selecting
<span class="bold"><strong>SubstructureNotify</strong></span>
on the parent.
It is generated when a
<a class="link" href="#requests:ConfigureWindow" title="ConfigureWindow"><span class="bold"><strong>ConfigureWindow</strong></span></a>
request actually changes the state of the window.
The event is the window on which the event was generated,
and the window is the window that is changed.
The x and y coordinates are relative to the new parent's origin
and specify the position of the upper-left outer corner of the window.
The width and height specify the inside size, not including the border.
If above-sibling is
<span class="bold"><strong>None</strong></span>,
then the window is on the bottom of the stack with respect to siblings.
Otherwise, the window is immediately on top of the specified sibling.
The override-redirect flag is from the window's attribute.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:GravityNotify"></a>GravityNotify</h2></div></div></div><a id="idp28980404" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>GravityNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>event</em></span>, <span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>: INT16


      </td></tr></tbody></table></div><p>
This event is reported to clients selecting
<span class="bold"><strong>SubstructureNotify</strong></span>
on the parent and to clients selecting
<span class="bold"><strong>StructureNotify</strong></span>
on the window.
It is generated when a window is moved because of a change in size
of the parent.
The event is the window on which the event was generated,
and the window is the window that is moved.
The x and y coordinates are relative to the new parent's origin
and specify the position of the upper-left outer corner of the window.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:ResizeRequest"></a>ResizeRequest</h2></div></div></div><a id="idp28988860" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>ResizeRequest</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>width</em></span>, <span class="emphasis"><em>height</em></span>: CARD16


      </td></tr></tbody></table></div><p>
This event is reported to the client selecting
<span class="bold"><strong>ResizeRedirect</strong></span>
on the window and is generated when a
<a class="link" href="#requests:ConfigureWindow" title="ConfigureWindow"><span class="bold"><strong>ConfigureWindow</strong></span></a>
request by some other client on the window attempts to change the size
of the window.
The width and height are the requested inside size, not including the border.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:ConfigureRequest"></a>ConfigureRequest</h2></div></div></div><a id="idp28997004" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>ConfigureRequest</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>parent</em></span>, <span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>x</em></span>, <span class="emphasis"><em>y</em></span>: INT16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>width</em></span>, <span class="emphasis"><em>height</em></span>, <span class="emphasis"><em>border-width</em></span>: CARD16
      </td></tr><tr><td align="left">
<span class="emphasis"><em>sibling</em></span>: WINDOW or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>stack-mode</em></span>:
{ <span class="bold"><strong>Above</strong></span>,
<span class="bold"><strong>Below</strong></span>,
<span class="bold"><strong>TopIf</strong></span>,
<span class="bold"><strong>BottomIf</strong></span>,
<span class="bold"><strong>Opposite</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>value-mask</em></span>: BITMASK


      </td></tr></tbody></table></div><p>
This event is reported to the client selecting
<span class="bold"><strong>SubstructureRedirect</strong></span>
on the parent and is generated when a
<a class="link" href="#requests:ConfigureWindow" title="ConfigureWindow"><span class="bold"><strong>ConfigureWindow</strong></span></a>
request is issued on the window by some other client.
The value-mask indicates which components were specified in the request.
The value-mask and the corresponding values are reported as given
in the request.
The remaining values are filled in from the current geometry of the window,
except in the case of sibling and stack-mode,
which are reported as
<span class="bold"><strong>None</strong></span>
and
<span class="bold"><strong>Above</strong></span>
(respectively) if not given in the request.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:CirculateNotify"></a>CirculateNotify</h2></div></div></div><a id="idp29012604" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>CirculateNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>event</em></span>, <span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>place</em></span>:
{ <span class="bold"><strong>Top</strong></span>,
<span class="bold"><strong>Bottom</strong></span>}


      </td></tr></tbody></table></div><p>
This event is reported to clients selecting
<span class="bold"><strong>StructureNotify</strong></span>
on the window and to clients selecting
<span class="bold"><strong>SubstructureNotify</strong></span>
on the parent.
It is generated when the window is actually restacked from a
<a class="link" href="#requests:CirculateWindow" title="CirculateWindow"><span class="bold"><strong>CirculateWindow</strong></span></a>
request.
The event is the window on which the event was generated,
and the window is the window that is restacked.
If place is
<span class="bold"><strong>Top</strong></span>,
the window is now on top of all siblings.
Otherwise, it is below all siblings.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:CirculateRequest"></a>CirculateRequest</h2></div></div></div><a id="idp29022300" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>CirculateRequest</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>parent</em></span>, <span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>place</em></span>:
{ <span class="bold"><strong>Top</strong></span>,
<span class="bold"><strong>Bottom</strong></span>}


      </td></tr></tbody></table></div><p>
This event is reported to the client selecting
<span class="bold"><strong>SubstructureRedirect</strong></span>
on the parent and is generated when a
<a class="link" href="#requests:CirculateWindow" title="CirculateWindow"><span class="bold"><strong>CirculateWindow</strong></span></a>
request is issued on the parent and a window actually needs to be restacked.
The window specifies the window to be restacked,
and the place specifies what the new position in the stacking order should be.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:PropertyNotify"></a>PropertyNotify</h2></div></div></div><a id="idp29031212" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>PropertyNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>atom</em></span>: ATOM
      </td></tr><tr><td align="left">
<span class="emphasis"><em>state</em></span>:
{ <span class="bold"><strong>NewValue</strong></span>,
<span class="bold"><strong>Deleted</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>time</em></span>: TIMESTAMP


      </td></tr></tbody></table></div><p>
This event is reported to clients selecting
<span class="bold"><strong>PropertyChange</strong></span>
on the window and is generated with state
<span class="bold"><strong>NewValue</strong></span>
when a property of the window is changed using
<a class="link" href="#requests:ChangeProperty" title="ChangeProperty"><span class="bold"><strong>ChangeProperty</strong></span></a>
or
<a class="link" href="#requests:RotateProperties" title="RotateProperties"><span class="bold"><strong>RotateProperties</strong></span></a>,
even when adding zero-length data using
<span class="bold"><strong>ChangeProperty</strong></span>
and when replacing all or part of a property with identical data using
<span class="bold"><strong>ChangeProperty</strong></span>
or
<span class="bold"><strong>RotateProperties</strong></span>.
It is generated with state
<span class="bold"><strong>Deleted</strong></span>
when a property of the
window is deleted using request
<a class="link" href="#requests:DeleteProperty" title="DeleteProperty"><span class="bold"><strong>DeleteProperty</strong></span></a>
or
<a class="link" href="#requests:GetProperty" title="GetProperty"><span class="bold"><strong>GetProperty</strong></span></a>.
The timestamp indicates the server time when the property was changed.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:SelectionClear"></a>SelectionClear</h2></div></div></div><a id="idp29045028" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>SelectionClear</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>owner</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>selection</em></span>: ATOM
      </td></tr><tr><td align="left">
<span class="emphasis"><em>time</em></span>: TIMESTAMP


      </td></tr></tbody></table></div><p>
This event is reported to the current owner of a selection
and is generated when a new owner is being defined by means of
<a class="link" href="#requests:SetSelectionOwner" title="SetSelectionOwner"><span class="bold"><strong>SetSelectionOwner</strong></span></a>.
The timestamp is the last-change time recorded for the selection.
The owner argument is the window that was specified by the current owner in its
<span class="bold"><strong>SetSelectionOwner</strong></span>
request.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:SelectionRequest"></a>SelectionRequest</h2></div></div></div><a id="idp29053660" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>SelectionRequest</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>owner</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>selection</em></span>: ATOM
      </td></tr><tr><td align="left">
<span class="emphasis"><em>target</em></span>: ATOM
      </td></tr><tr><td align="left">
<span class="emphasis"><em>property</em></span>: ATOM or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>requestor</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>time</em></span>: TIMESTAMP or
<span class="bold"><strong>CurrentTime</strong></span>


      </td></tr></tbody></table></div><p>
This event is reported to the owner of a selection
and is generated when a client issues a
<a class="link" href="#requests:ConvertSelection" title="ConvertSelection"><span class="bold"><strong>ConvertSelection</strong></span></a>
request.
The owner argument is the window that was specified in the
<a class="link" href="#requests:SetSelectionOwner" title="SetSelectionOwner"><span class="bold"><strong>SetSelectionOwner</strong></span></a>
request.
The remaining arguments are as in the
<span class="bold"><strong>ConvertSelection</strong></span>
request.
</p><p>
The owner should convert the selection based on the specified target type
and send a
<span class="bold"><strong>SelectionNotify</strong></span>
back to the requestor.
A complete specification for using selections is given in the X.Org
standard <em class="citetitle">Inter-Client Communication Conventions Manual</em>.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:SelectionNotify"></a>SelectionNotify</h2></div></div></div><a id="idp29067004" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>SelectionNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>requestor</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>selection</em></span>, <span class="emphasis"><em>target</em></span>: ATOM
      </td></tr><tr><td align="left">
<span class="emphasis"><em>property</em></span>: ATOM or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>time</em></span>: TIMESTAMP or
<span class="bold"><strong>CurrentTime</strong></span>


      </td></tr></tbody></table></div><p>
This event is generated by the server in response to a
<a class="link" href="#requests:ConvertSelection" title="ConvertSelection"><span class="bold"><strong>ConvertSelection</strong></span></a>
request when there is no owner for the selection.
When there is an owner,
it should be generated by the owner using
<a class="link" href="#requests:SendEvent" title="SendEvent"><span class="bold"><strong>SendEvent</strong></span></a>.
The owner of a selection should send this event to a requestor either
when a selection has been converted and stored as a property
or when a selection conversion could not be performed (indicated with property
<span class="bold"><strong>None</strong></span>).

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:ColormapNotify"></a>ColormapNotify</h2></div></div></div><a id="idp29078196" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>ColormapNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>colormap</em></span>: COLORMAP or
<span class="bold"><strong>None</strong></span>
      </td></tr><tr><td align="left">
<span class="emphasis"><em>new</em></span>: BOOL
      </td></tr><tr><td align="left">
<span class="emphasis"><em>state</em></span>:
{ <span class="bold"><strong>Installed</strong></span>,
<span class="bold"><strong>Uninstalled</strong></span>}


      </td></tr></tbody></table></div><p>
This event is reported to clients selecting
<span class="bold"><strong>ColormapChange</strong></span>
on the window.
It is generated with value
<span class="bold"><strong>True</strong></span>
for new when the colormap attribute of the window is changed
and is generated with value
<span class="bold"><strong>False</strong></span>
for new when the colormap of a window is installed or uninstalled.
In either case,
the state indicates whether the colormap is currently installed.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:MappingNotify"></a>MappingNotify</h2></div></div></div><a id="idp29088892" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>MappingNotify</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>request</em></span>:
{ <span class="bold"><strong>Modifier</strong></span>,
<span class="bold"><strong>Keyboard</strong></span>,
<span class="bold"><strong>Pointer</strong></span>}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>first-keycode</em></span>, <span class="emphasis"><em>count</em></span>: CARD8


      </td></tr></tbody></table></div><p>
This event is sent to all clients.
There is no mechanism to express disinterest in this event.
The detail indicates the kind of change that occurred:
<span class="bold"><strong>Modifiers</strong></span>
for a successful
<a class="link" href="#requests:SetModifierMapping" title="SetModifierMapping"><span class="bold"><strong>SetModifierMapping</strong></span></a>,
<span class="bold"><strong>Keyboard</strong></span>
for a successful
<a class="link" href="#requests:ChangeKeyboardMapping" title="ChangeKeyboardMapping"><span class="bold"><strong>ChangeKeyboardMapping</strong></span></a>,
and
<span class="bold"><strong>Pointer</strong></span>
for a successful
<a class="link" href="#requests:SetPointerMapping" title="SetPointerMapping"><span class="bold"><strong>SetPointerMapping</strong></span></a>.
If the detail is
<span class="bold"><strong>Keyboard</strong></span>,
then first-keycode and count indicate the range of altered keycodes.

</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="events:ClientMessage"></a>ClientMessage</h2></div></div></div><a id="idp29100380" class="indexterm"></a><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
	<span class="bold"><strong>ClientMessage</strong></span>
      </td></tr><tr><td align="left">

<span class="emphasis"><em>window</em></span>: WINDOW
      </td></tr><tr><td align="left">
<span class="emphasis"><em>type</em></span>: ATOM
      </td></tr><tr><td align="left">
<span class="emphasis"><em>format</em></span>: {8, 16, 32}
      </td></tr><tr><td align="left">
<span class="emphasis"><em>data</em></span>: LISTofINT8 or LISTofINT16 or LISTofINT32


      </td></tr></tbody></table></div><p>
This event is only generated by clients using
<a class="link" href="#requests:SendEvent" title="SendEvent"><span class="bold"><strong>SendEvent</strong></span></a>.
The type specifies how the data is to be interpreted by the receiving client;
the server places no interpretation on the type or the data.
The format specifies whether the data should be viewed as a list of 8-bit,
16-bit, or 32-bit quantities, so that the server can correctly
byte-swap, as necessary.
The data always consists of either 20 8-bit values or 10 16-bit values
or 5 32-bit values, although particular message types might not make use
of all of these values.
</p></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="Flow_Control_and_Concurrency"></a>Chapter 12. Flow Control and Concurrency</h1></div></div></div><p>
Whenever the server is writing to a given connection,
it is permissible for the server to stop reading from that connection
(but if the writing would block, it must continue to service other connections).
The server is not required to buffer more than a single request per connection
at one time.
For a given connection to the server,
a client can block while reading from the connection
but should undertake to read (events and errors) when writing would block.
Failure on the part of a client to obey this rule could result
in a deadlocked connection,
although deadlock is probably unlikely unless either
the transport layer has very little buffering or the client attempts to
send large numbers of requests without ever reading replies or checking for
errors and events.
</p><p>
Whether or not a server is implemented with internal concurrency,
the overall effect must be as if individual requests are executed to completion
in some serial order,
and requests from a given connection must be executed in delivery order
(that is, the total execution order is a shuffle of the individual streams).
The execution of a request includes validating all arguments,
collecting all data for any reply,
and generating and queueing all required events.
However,
it does not include the actual transmission of the reply and the events.
In addition, the effect of any other cause that can generate multiple events
(for example, activation of a grab or pointer motion) must effectively generate
and queue all required events indivisibly with respect to all other causes
and requests.
For a request from a given client,
any events destined for that client that are caused by executing the request
must be sent to the client before any reply or error is sent.
</p></div><div class="appendix"><div class="titlepage"><div><div><h1 class="title"><a id="keysym_encoding"></a>Appendix A. KEYSYM Encoding</h1></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="sect1"><a href="#Special_KEYSYMs">Special KEYSYMs</a></span></dt><dt><span class="sect1"><a href="#Latin_1_KEYSYMs">Latin-1 KEYSYMs</a></span></dt><dt><span class="sect1"><a href="#Unicode_KEYSYMs">Unicode KEYSYMs</a></span></dt><dt><span class="sect1"><a href="#Function_KEYSYMs">Function KEYSYMs</a></span></dt><dt><span class="sect1"><a href="#Vendor_KEYSYMs">Vendor KEYSYMs</a></span></dt><dt><span class="sect1"><a href="#Legacy_KEYSYMs">Legacy KEYSYMs</a></span></dt></dl></div><a id="idp22286204" class="indexterm"></a><a id="idp26067612" class="indexterm"></a><p>
KEYSYM values are 32-bit integers that encode the symbols on the
keycaps of a keyboard. The three most significant bits are always
zero, which leaves a 29-bit number space. For convenience, KEYSYM
values can be viewed as split into four bytes:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
Byte 1 is the most significant eight bits (three zero bits and
the most-significant five bits of the 29-bit effective value)
    </p></li><li class="listitem"><p>
Byte 2 is the next most-significant eight bits
    </p></li><li class="listitem"><p>
Byte 3 is the next most-significant eight bits
    </p></li><li class="listitem"><p>
Byte 4 is the least-significant eight bits
    </p></li></ul></div><p>
There are six categories of KEYSYM values.
</p><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Special_KEYSYMs"></a>Special KEYSYMs</h2></div></div></div><p>
There are two special values:
<span class="keysym">NoSymbol</span>
and
<span class="keysym">VoidSymbol</span>.
They are used to indicate the absence of symbols (see
<a class="link" href="#Keyboards" title="Chapter 5. Keyboards">Section 5, Keyboards</a>).
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /></colgroup><thead><tr><th align="left">Byte 1</th><th align="left">Byte 2</th><th align="left">Byte 3</th><th align="left">Byte 4</th><th align="left">Hex. value</th><th align="left">Name</th></tr></thead><tbody><tr><td align="left">0</td><td align="left">0</td><td align="left">0</td><td align="left">0</td><td align="left">#x00000000</td><td align="left"><span class="keysym">NoSymbol</span></td></tr><tr><td align="left">0</td><td align="left">255</td><td align="left">255</td><td align="left">255</td><td align="left">#x00FFFFFF</td><td align="left"><span class="keysym">VoidSymbol</span></td></tr></tbody></table></div></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Latin_1_KEYSYMs"></a>Latin-1 KEYSYMs</h2></div></div></div><p>
The Latin-1 KEYSYMs occupy the range #x0020 to #x007E and #x00A0 to
#00FF and represent the ISO 10646 / Unicode characters U+0020 to
U+007E and U+00A0 to U+00FF, respectively.
</p></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Unicode_KEYSYMs"></a>Unicode KEYSYMs</h2></div></div></div><a id="idp21294532" class="indexterm"></a><p>
These occupy the range #x01000100 to #x0110FFFF and represent the ISO
10646 / Unicode characters U+0100 to U+10FFFF, respectively. The
numeric value of a Unicode KEYSYM is the Unicode position of the
corresponding character plus #x01000000. In the interest of backwards
compatibility, clients should be able to process both the Unicode
KEYSYM and the Legacy KEYSYM for those characters where both exist.
</p><p>
Dead keys, which place an accent on the next character entered, shall
be encoded as Function KEYSYMs, and not as the Unicode KEYSYM
corresponding to an equivalent combining character. Where a keycap
indicates a specific function with a graphical symbol that is also
available in Unicode (e.g., an upwards arrow for the cursor up
function), the appropriate Function KEYSYM should be used, and not
the Unicode KEYSYM corresponding to the depicted symbol.
</p></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Function_KEYSYMs"></a>Function KEYSYMs</h2></div></div></div><p>
These represent keycap symbols that do not directly represent elements
of a coded character set. Instead, they typically identify a software
function, mode, or operation (e.g., cursor up, caps lock, insert) that
can be activated using a dedicated key. Function KEYSYMs have zero
values for bytes 1 and 2. Byte 3 distinguishes between several 8-bit
sets within which byte 4 identifies the individual function key.
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Byte 3</th><th align="left">Byte 4</th></tr></thead><tbody><tr><td align="left">255</td><td align="left">Keyboard</td></tr><tr><td align="left">254</td><td align="left">Keyboard (XKB) Extension</td></tr><tr><td align="left">253</td><td align="left">3270</td></tr></tbody></table></div><p>
Within a national market, keyboards tend to be comparatively standard
with respect to the character keys, but they can differ significantly
on the miscellaneous function keys. Some have function keys left over
from early timesharing days, others were designed for a specific
application, such as text processing, web browsing, or accessing
audiovisual data. The symbols on the keycaps can differ significantly
between manufacturers and national markets, even where they denote the
same software function (e.g., Ctrl in the U.S. versus Strg in Germany)
</p><p>

There are two ways of thinking about how to define KEYSYMs for such a
world:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
The Engraving approach
    </p></li><li class="listitem"><p>
The Common approach
    </p></li></ul></div><p>

The Engraving approach is to create a KEYSYM for every unique key
engraving. This is effectively taking the union of all key engravings
on all keyboards. For example, some keyboards label function keys
across the top as F1 through Fn, and others label them as PF1 through
PFn. These would be different keys under the Engraving
approach. Likewise, Lock would differ from Shift Lock, which is
different from the up-arrow symbol that has the effect of changing
lowercase to uppercase. There are lots of other aliases such as Del,
DEL, Delete, Remove, and so forth. The Engraving approach makes it
easy to decide if a new entry should be added to the KEYSYM set: if it
does not exactly match an existing one, then a new one is created.
</p><p>

The Common approach tries to capture all of the keys present on an
interesting number of keyboards, folding likely aliases into the same
KEYSYM. For example, Del, DEL, and Delete are all merged into a single
KEYSYM. Vendors can augment the KEYSYM set (using the vendor-specific
encoding space) to include all of their unique keys that were not
included in the standard set. Each vendor decides which of its keys
map into the standard KEYSYMs, which presumably can be overridden by a
user. It is more difficult to implement this approach, because
judgment is required about when a sufficient set of keyboards
implements an engraving to justify making it a KEYSYM in the standard
set and about which engravings should be merged into a single
KEYSYM.
</p><p>

Although neither scheme is perfect or elegant, the Common approach has
been selected because it makes it easier to write a portable
application. Having the Delete functionality merged into a single
KEYSYM allows an application to implement a deletion function and
expect reasonable bindings on a wide set of workstations. Under the
Common approach, application writers are still free to look for and
interpret vendor-specific KEYSYMs, but because they are in the
extended set, the application developer is more conscious that they
are writing the application in a nonportable fashion.
</p><p>

The Keyboard set is a miscellaneous collection of commonly occurring
keys on keyboards. Within this set, the numeric keypad symbols are
generally duplicates of symbols found on keys on the main part of the
keyboard, but they are distinguished here because they often have a
distinguishable semantics associated with them.
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left">KEYSYM value</th><th align="left">Name</th><th align="left">Set</th></tr></thead><tbody><tr><td align="left">#xFF08</td><td align="left">BACKSPACE, BACK SPACE, BACK CHAR</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF09</td><td align="left">TAB</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF0A</td><td align="left">LINEFEED, LF</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF0B</td><td align="left">CLEAR</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF0D</td><td align="left">RETURN, ENTER</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF13</td><td align="left">PAUSE, HOLD</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF14</td><td align="left">SCROLL LOCK</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF15</td><td align="left">SYS REQ, SYSTEM REQUEST</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF1B</td><td align="left">ESCAPE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF20</td><td align="left">MULTI-KEY CHARACTER PREFACE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF21</td><td align="left">KANJI, KANJI CONVERT</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF22</td><td align="left">MUHENKAN</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF23</td><td align="left">HENKAN MODE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF24</td><td align="left">ROMAJI</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF25</td><td align="left">HIRAGANA</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF26</td><td align="left">KATAKANA</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF27</td><td align="left">HIRAGANA/KATAKANA TOGGLE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF28</td><td align="left">ZENKAKU</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF29</td><td align="left">HANKAKU</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF2A</td><td align="left">ZENKAKU/HANKAKU TOGGLE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF2B</td><td align="left">TOUROKU</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF2C</td><td align="left">MASSYO</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF2D</td><td align="left">KANA LOCK</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF2E</td><td align="left">KANA SHIFT</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF2F</td><td align="left">EISU SHIFT</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF30</td><td align="left">EISU TOGGLE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF31</td><td align="left">HANGUL START/STOP (TOGGLE)</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF32</td><td align="left">HANGUL START</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF33</td><td align="left">HANGUL END, ENGLISH START</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF34</td><td align="left">START HANGUL/HANJA CONVERSION</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF35</td><td align="left">HANGUL JAMO MODE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF36</td><td align="left">HANGUL ROMAJA MODE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF37</td><td align="left">HANGUL CODE INPUT</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF38</td><td align="left">HANGUL JEONJA MODE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF39</td><td align="left">HANGUL BANJA MODE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF3A</td><td align="left">HANGUL PREHANJA CONVERSION</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF3B</td><td align="left">HANGUL POSTHANJA CONVERSION</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF3C</td><td align="left">HANGUL SINGLE CANDIDATE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF3D</td><td align="left">HANGUL MULTIPLE CANDIDATE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF3E</td><td align="left">HANGUL PREVIOUS CANDIDATE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF3F</td><td align="left">HANGUL SPECIAL SYMBOLS</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF50</td><td align="left">HOME</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF51</td><td align="left">LEFT, MOVE LEFT, LEFT ARROW</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF52</td><td align="left">UP, MOVE UP, UP ARROW</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF53</td><td align="left">RIGHT, MOVE RIGHT, RIGHT ARROW</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF54</td><td align="left">DOWN, MOVE DOWN, DOWN ARROW</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF55</td><td align="left">PRIOR, PREVIOUS, PAGE UP</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF56</td><td align="left">NEXT, PAGE DOWN</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF57</td><td align="left">END, EOL</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF58</td><td align="left">BEGIN, BOL</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF60</td><td align="left">SELECT, MARK</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF61</td><td align="left">PRINT</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF62</td><td align="left">EXECUTE, RUN, DO</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF63</td><td align="left">INSERT, INSERT HERE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF65</td><td align="left">UNDO, OOPS</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF66</td><td align="left">REDO, AGAIN</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF67</td><td align="left">MENU</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF68</td><td align="left">FIND, SEARCH</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF69</td><td align="left">CANCEL, STOP, ABORT, EXIT</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF6A</td><td align="left">HELP</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF6B</td><td align="left">BREAK</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF7E</td><td align="left">MODE SWITCH, SCRIPT SWITCH, CHARACTER SET SWITCH</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF7F</td><td align="left">NUM LOCK</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF80</td><td align="left">KEYPAD SPACE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF89</td><td align="left">KEYPAD TAB</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF8D</td><td align="left">KEYPAD ENTER</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF91</td><td align="left">KEYPAD F1, PF1, A</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF92</td><td align="left">KEYPAD F2, PF2, B</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF93</td><td align="left">KEYPAD F3, PF3, C</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF94</td><td align="left">KEYPAD F4, PF4, D</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF95</td><td align="left">KEYPAD HOME</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF96</td><td align="left">KEYPAD LEFT</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF97</td><td align="left">KEYPAD UP</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF98</td><td align="left">KEYPAD RIGHT</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF99</td><td align="left">KEYPAD DOWN</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF9A</td><td align="left">KEYPAD PRIOR, PAGE UP</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF9B</td><td align="left">KEYPAD NEXT, PAGE DOWN</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF9C</td><td align="left">KEYPAD END</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF9D</td><td align="left">KEYPAD BEGIN</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF9E</td><td align="left">KEYPAD INSERT</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFF9F</td><td align="left">KEYPAD DELETE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFAA</td><td align="left">KEYPAD MULTIPLICATION SIGN, ASTERISK</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFAB</td><td align="left">KEYPAD PLUS SIGN</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFAC</td><td align="left">KEYPAD SEPARATOR, COMMA</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFAD</td><td align="left">KEYPAD MINUS SIGN, HYPHEN</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFAE</td><td align="left">KEYPAD DECIMAL POINT, FULL STOP</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFAF</td><td align="left">KEYPAD DIVISION SIGN, SOLIDUS</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFB0</td><td align="left">KEYPAD DIGIT ZERO</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFB1</td><td align="left">KEYPAD DIGIT ONE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFB2</td><td align="left">KEYPAD DIGIT TWO</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFB3</td><td align="left">KEYPAD DIGIT THREE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFB4</td><td align="left">KEYPAD DIGIT FOUR</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFB5</td><td align="left">KEYPAD DIGIT FIVE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFB6</td><td align="left">KEYPAD DIGIT SIX</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFB7</td><td align="left">KEYPAD DIGIT SEVEN</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFB8</td><td align="left">KEYPAD DIGIT EIGHT</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFB9</td><td align="left">KEYPAD DIGIT NINE</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFBD</td><td align="left">KEYPAD EQUALS SIGN</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFBE</td><td align="left">F1</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFBF</td><td align="left">F2</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFC0</td><td align="left">F3</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFC1</td><td align="left">F4</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFC2</td><td align="left">F5</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFC3</td><td align="left">F6</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFC4</td><td align="left">F7</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFC5</td><td align="left">F8</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFC6</td><td align="left">F9</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFC7</td><td align="left">F10</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFC8</td><td align="left">F11, L1</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFC9</td><td align="left">F12, L2</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFCA</td><td align="left">F13, L3</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFCB</td><td align="left">F14, L4</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFCC</td><td align="left">F15, L5</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFCD</td><td align="left">F16, L6</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFCE</td><td align="left">F17, L7</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFCF</td><td align="left">F18, L8</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFD0</td><td align="left">F19, L9</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFD1</td><td align="left">F20, L10</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFD2</td><td align="left">F21, R1</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFD3</td><td align="left">F22, R2</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFD4</td><td align="left">F23, R3</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFD5</td><td align="left">F24, R4</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFD6</td><td align="left">F25, R5</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFD7</td><td align="left">F26, R6</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFD8</td><td align="left">F27, R7</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFD9</td><td align="left">F28, R8</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFDA</td><td align="left">F29, R9</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFDB</td><td align="left">F30, R10</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFDC</td><td align="left">F31, R11</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFDD</td><td align="left">F32, R12</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFDE</td><td align="left">F33, R13</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFDF</td><td align="left">F34, R14</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFE0</td><td align="left">F35, R15</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFE1</td><td align="left">LEFT SHIFT</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFE2</td><td align="left">RIGHT SHIFT</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFE3</td><td align="left">LEFT CONTROL</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFE4</td><td align="left">RIGHT CONTROL</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFE5</td><td align="left">CAPS LOCK</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFE6</td><td align="left">SHIFT LOCK</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFE7</td><td align="left">LEFT META</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFE8</td><td align="left">RIGHT META</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFE9</td><td align="left">LEFT ALT</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFEA</td><td align="left">RIGHT ALT</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFEB</td><td align="left">LEFT SUPER</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFEC</td><td align="left">RIGHT SUPER</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFED</td><td align="left">LEFT HYPER</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFEE</td><td align="left">RIGHT HYPER</td><td align="left">Keyboard</td></tr><tr><td align="left">#xFFFF</td><td align="left">DELETE, RUBOUT</td><td align="left">Keyboard</td></tr></tbody></table></div><p>
The Keyboard (XKB) Extension set, which provides among other things
a range of dead keys, is defined in "The X Keyboard Extension:
Protocol Specification", Appendix C. 
</p><p>
The 3270 set defines additional keys that are specific to IBM 3270
terminals.
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left">KEYSYM value</th><th align="left">Name</th><th align="left">Set</th></tr></thead><tbody><tr><td align="left">#xFD01</td><td align="left">3270 DUPLICATE</td><td align="left">3270</td></tr><tr><td align="left">#xFD02</td><td align="left">3270 FIELDMARK</td><td align="left">3270</td></tr><tr><td align="left">#xFD03</td><td align="left">3270 RIGHT2</td><td align="left">3270</td></tr><tr><td align="left">#xFD04</td><td align="left">3270 LEFT2</td><td align="left">3270</td></tr><tr><td align="left">#xFD05</td><td align="left">3270 BACKTAB</td><td align="left">3270</td></tr><tr><td align="left">#xFD06</td><td align="left">3270 ERASEEOF</td><td align="left">3270</td></tr><tr><td align="left">#xFD07</td><td align="left">3270 ERASEINPUT</td><td align="left">3270</td></tr><tr><td align="left">#xFD08</td><td align="left">3270 RESET</td><td align="left">3270</td></tr><tr><td align="left">#xFD09</td><td align="left">3270 QUIT</td><td align="left">3270</td></tr><tr><td align="left">#xFD0A</td><td align="left">3270 PA1</td><td align="left">3270</td></tr><tr><td align="left">#xFD0B</td><td align="left">3270 PA2</td><td align="left">3270</td></tr><tr><td align="left">#xFD0C</td><td align="left">3270 PA3</td><td align="left">3270</td></tr><tr><td align="left">#xFD0D</td><td align="left">3270 TEST</td><td align="left">3270</td></tr><tr><td align="left">#xFD0E</td><td align="left">3270 ATTN</td><td align="left">3270</td></tr><tr><td align="left">#xFD0F</td><td align="left">3270 CURSORBLINK</td><td align="left">3270</td></tr><tr><td align="left">#xFD10</td><td align="left">3270 ALTCURSOR</td><td align="left">3270</td></tr><tr><td align="left">#xFD11</td><td align="left">3270 KEYCLICK</td><td align="left">3270</td></tr><tr><td align="left">#xFD12</td><td align="left">3270 JUMP</td><td align="left">3270</td></tr><tr><td align="left">#xFD13</td><td align="left">3270 IDENT</td><td align="left">3270</td></tr><tr><td align="left">#xFD14</td><td align="left">3270 RULE</td><td align="left">3270</td></tr><tr><td align="left">#xFD15</td><td align="left">3270 COPY</td><td align="left">3270</td></tr><tr><td align="left">#xFD16</td><td align="left">3270 PLAY</td><td align="left">3270</td></tr><tr><td align="left">#xFD17</td><td align="left">3270 SETUP</td><td align="left">3270</td></tr><tr><td align="left">#xFD18</td><td align="left">3270 RECORD</td><td align="left">3270</td></tr><tr><td align="left">#xFD19</td><td align="left">3270 CHANGESCREEN</td><td align="left">3270</td></tr><tr><td align="left">#xFD1A</td><td align="left">3270 DELETEWORD</td><td align="left">3270</td></tr><tr><td align="left">#xFD1B</td><td align="left">3270 EXSELECT</td><td align="left">3270</td></tr><tr><td align="left">#xFD1C</td><td align="left">3270 CURSORSELECT</td><td align="left">3270</td></tr><tr><td align="left">#xFD1D</td><td align="left">3270 PRINTSCREEN</td><td align="left">3270</td></tr><tr><td align="left">#xFD1E</td><td align="left">3270 ENTER</td><td align="left">3270</td></tr></tbody></table></div></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Vendor_KEYSYMs"></a>Vendor KEYSYMs</h2></div></div></div><p>
The KEYSYM number range #x10000000 to #x1FFFFFFF is available for
vendor-specific extentions. Among these, the range #x11000000 to
#x1100FFFF is designated for keypad KEYSYMs.
</p></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Legacy_KEYSYMs"></a>Legacy KEYSYMs</h2></div></div></div><p>
These date from the time before ISO 10646 / Unicode was
available. They represent characters from a number of different older
8-bit coded character sets and have zero values for bytes 1 and
2. Byte 3 indicates a coded character set and byte 4 is the 8-bit
value of the particular character within that set.
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Byte 3</th><th align="left">Byte 4</th><th align="left">Byte 3</th><th align="left">Byte 4</th></tr></thead><tbody><tr><td align="left">1</td><td align="left">Latin-2</td><td align="left">11</td><td align="left">APL</td></tr><tr><td align="left">2</td><td align="left">Latin-3</td><td align="left">12</td><td align="left">Hebrew</td></tr><tr><td align="left">3</td><td align="left">Latin-4</td><td align="left">13</td><td align="left">Thai</td></tr><tr><td align="left">4</td><td align="left">Kana</td><td align="left">14</td><td align="left">Korean</td></tr><tr><td align="left">5</td><td align="left">Arabic</td><td align="left">15</td><td align="left">Latin-5</td></tr><tr><td align="left">6</td><td align="left">Cyrillic</td><td align="left">16</td><td align="left">Latin-6</td></tr><tr><td align="left">7</td><td align="left">Greek</td><td align="left">17</td><td align="left">Latin-7</td></tr><tr><td align="left">8</td><td align="left">Technical</td><td align="left">18</td><td align="left">Latin-8</td></tr><tr><td align="left">9</td><td align="left">Special</td><td align="left">19</td><td align="left">Latin-9</td></tr><tr><td align="left">10</td><td align="left">Publishing</td><td align="left">32</td><td align="left">Currency</td></tr></tbody></table></div><p>
Each character set contains gaps where codes have been removed that
were duplicates with codes in previous character sets (that is,
character sets with lesser byte 3 value).
</p><p>
The Latin, Arabic, Cyrillic, Greek, Hebrew, and Thai sets were taken
from the early drafts of the relevant ISO 8859 parts available at the
time. However, in the case of the Cyrillic and Greek sets, these
turned out differently in the final versions of the ISO standard. The
Technical, Special, and Publishing sets are based on Digital Equipment
Corporation standards, as no equivalent international standards were
available at the time.
</p><p>
The table below lists all standardized Legacy KEYSYMs, along with the
name used in the source document. Where there exists an unambiguous
equivalent in Unicode, as it is the case with all ISO 8859 characters,
it is given in the second column as a cross reference. Where there is
no Unicode number provided, the exact semantics of the KEYSYM may have
been lost and a Unicode KEYSYM should be used instead, if available.
</p><p>
As support of Unicode KEYSYMs increases, some or all of the Legacy
KEYSYMs may be phased out and withdrawn in future versions of this
standard. Most KEYSYMs in the sets Technical, Special, Publishing, APL
and Currency (with the exception of #x20AC) were probably never used
in practice, and were not supported by pre-Unicode fonts. In
particular, the Currency set, which was copied from Unicode, has
already been deprecated by the introduction of the Unicode KEYSYMs.
</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">KEYSYM value</th><th align="left">Unicode value</th><th align="left">Name</th><th align="left">Set</th></tr></thead><tbody><tr><td align="left">#x01A1</td><td align="left">U+0104</td><td align="left">LATIN CAPITAL LETTER A WITH OGONEK</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01A2</td><td align="left">U+02D8</td><td align="left">BREVE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01A3</td><td align="left">U+0141</td><td align="left">LATIN CAPITAL LETTER L WITH STROKE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01A5</td><td align="left">U+013D</td><td align="left">LATIN CAPITAL LETTER L WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01A6</td><td align="left">U+015A</td><td align="left">LATIN CAPITAL LETTER S WITH ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01A9</td><td align="left">U+0160</td><td align="left">LATIN CAPITAL LETTER S WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01AA</td><td align="left">U+015E</td><td align="left">LATIN CAPITAL LETTER S WITH CEDILLA</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01AB</td><td align="left">U+0164</td><td align="left">LATIN CAPITAL LETTER T WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01AC</td><td align="left">U+0179</td><td align="left">LATIN CAPITAL LETTER Z WITH ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01AE</td><td align="left">U+017D</td><td align="left">LATIN CAPITAL LETTER Z WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01AF</td><td align="left">U+017B</td><td align="left">LATIN CAPITAL LETTER Z WITH DOT ABOVE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01B1</td><td align="left">U+0105</td><td align="left">LATIN SMALL LETTER A WITH OGONEK</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01B2</td><td align="left">U+02DB</td><td align="left">OGONEK</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01B3</td><td align="left">U+0142</td><td align="left">LATIN SMALL LETTER L WITH STROKE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01B5</td><td align="left">U+013E</td><td align="left">LATIN SMALL LETTER L WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01B6</td><td align="left">U+015B</td><td align="left">LATIN SMALL LETTER S WITH ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01B7</td><td align="left">U+02C7</td><td align="left">CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01B9</td><td align="left">U+0161</td><td align="left">LATIN SMALL LETTER S WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01BA</td><td align="left">U+015F</td><td align="left">LATIN SMALL LETTER S WITH CEDILLA</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01BB</td><td align="left">U+0165</td><td align="left">LATIN SMALL LETTER T WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01BC</td><td align="left">U+017A</td><td align="left">LATIN SMALL LETTER Z WITH ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01BD</td><td align="left">U+02DD</td><td align="left">DOUBLE ACUTE ACCENT</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01BE</td><td align="left">U+017E</td><td align="left">LATIN SMALL LETTER Z WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01BF</td><td align="left">U+017C</td><td align="left">LATIN SMALL LETTER Z WITH DOT ABOVE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01C0</td><td align="left">U+0154</td><td align="left">LATIN CAPITAL LETTER R WITH ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01C3</td><td align="left">U+0102</td><td align="left">LATIN CAPITAL LETTER A WITH BREVE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01C5</td><td align="left">U+0139</td><td align="left">LATIN CAPITAL LETTER L WITH ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01C6</td><td align="left">U+0106</td><td align="left">LATIN CAPITAL LETTER C WITH ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01C8</td><td align="left">U+010C</td><td align="left">LATIN CAPITAL LETTER C WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01CA</td><td align="left">U+0118</td><td align="left">LATIN CAPITAL LETTER E WITH OGONEK</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01CC</td><td align="left">U+011A</td><td align="left">LATIN CAPITAL LETTER E WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01CF</td><td align="left">U+010E</td><td align="left">LATIN CAPITAL LETTER D WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01D0</td><td align="left">U+0110</td><td align="left">LATIN CAPITAL LETTER D WITH STROKE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01D1</td><td align="left">U+0143</td><td align="left">LATIN CAPITAL LETTER N WITH ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01D2</td><td align="left">U+0147</td><td align="left">LATIN CAPITAL LETTER N WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01D5</td><td align="left">U+0150</td><td align="left">LATIN CAPITAL LETTER O WITH DOUBLE ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01D8</td><td align="left">U+0158</td><td align="left">LATIN CAPITAL LETTER R WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01D9</td><td align="left">U+016E</td><td align="left">LATIN CAPITAL LETTER U WITH RING ABOVE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01DB</td><td align="left">U+0170</td><td align="left">LATIN CAPITAL LETTER U WITH DOUBLE ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01DE</td><td align="left">U+0162</td><td align="left">LATIN CAPITAL LETTER T WITH CEDILLA</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01E0</td><td align="left">U+0155</td><td align="left">LATIN SMALL LETTER R WITH ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01E3</td><td align="left">U+0103</td><td align="left">LATIN SMALL LETTER A WITH BREVE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01E5</td><td align="left">U+013A</td><td align="left">LATIN SMALL LETTER L WITH ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01E6</td><td align="left">U+0107</td><td align="left">LATIN SMALL LETTER C WITH ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01E8</td><td align="left">U+010D</td><td align="left">LATIN SMALL LETTER C WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01EA</td><td align="left">U+0119</td><td align="left">LATIN SMALL LETTER E WITH OGONEK</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01EC</td><td align="left">U+011B</td><td align="left">LATIN SMALL LETTER E WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01EF</td><td align="left">U+010F</td><td align="left">LATIN SMALL LETTER D WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01F0</td><td align="left">U+0111</td><td align="left">LATIN SMALL LETTER D WITH STROKE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01F1</td><td align="left">U+0144</td><td align="left">LATIN SMALL LETTER N WITH ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01F2</td><td align="left">U+0148</td><td align="left">LATIN SMALL LETTER N WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01F5</td><td align="left">U+0151</td><td align="left">LATIN SMALL LETTER O WITH DOUBLE ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01F8</td><td align="left">U+0159</td><td align="left">LATIN SMALL LETTER R WITH CARON</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01F9</td><td align="left">U+016F</td><td align="left">LATIN SMALL LETTER U WITH RING ABOVE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01FB</td><td align="left">U+0171</td><td align="left">LATIN SMALL LETTER U WITH DOUBLE ACUTE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01FE</td><td align="left">U+0163</td><td align="left">LATIN SMALL LETTER T WITH CEDILLA</td><td align="left">Latin-2</td></tr><tr><td align="left">#x01FF</td><td align="left">U+02D9</td><td align="left">DOT ABOVE</td><td align="left">Latin-2</td></tr><tr><td align="left">#x02A1</td><td align="left">U+0126</td><td align="left">LATIN CAPITAL LETTER H WITH STROKE</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02A6</td><td align="left">U+0124</td><td align="left">LATIN CAPITAL LETTER H WITH CIRCUMFLEX</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02A9</td><td align="left">U+0130</td><td align="left">LATIN CAPITAL LETTER I WITH DOT ABOVE</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02AB</td><td align="left">U+011E</td><td align="left">LATIN CAPITAL LETTER G WITH BREVE</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02AC</td><td align="left">U+0134</td><td align="left">LATIN CAPITAL LETTER J WITH CIRCUMFLEX</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02B1</td><td align="left">U+0127</td><td align="left">LATIN SMALL LETTER H WITH STROKE</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02B6</td><td align="left">U+0125</td><td align="left">LATIN SMALL LETTER H WITH CIRCUMFLEX</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02B9</td><td align="left">U+0131</td><td align="left">LATIN SMALL LETTER DOTLESS I</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02BB</td><td align="left">U+011F</td><td align="left">LATIN SMALL LETTER G WITH BREVE</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02BC</td><td align="left">U+0135</td><td align="left">LATIN SMALL LETTER J WITH CIRCUMFLEX</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02C5</td><td align="left">U+010A</td><td align="left">LATIN CAPITAL LETTER C WITH DOT ABOVE</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02C6</td><td align="left">U+0108</td><td align="left">LATIN CAPITAL LETTER C WITH CIRCUMFLEX</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02D5</td><td align="left">U+0120</td><td align="left">LATIN CAPITAL LETTER G WITH DOT ABOVE</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02D8</td><td align="left">U+011C</td><td align="left">LATIN CAPITAL LETTER G WITH CIRCUMFLEX</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02DD</td><td align="left">U+016C</td><td align="left">LATIN CAPITAL LETTER U WITH BREVE</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02DE</td><td align="left">U+015C</td><td align="left">LATIN CAPITAL LETTER S WITH CIRCUMFLEX</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02E5</td><td align="left">U+010B</td><td align="left">LATIN SMALL LETTER C WITH DOT ABOVE</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02E6</td><td align="left">U+0109</td><td align="left">LATIN SMALL LETTER C WITH CIRCUMFLEX</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02F5</td><td align="left">U+0121</td><td align="left">LATIN SMALL LETTER G WITH DOT ABOVE</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02F8</td><td align="left">U+011D</td><td align="left">LATIN SMALL LETTER G WITH CIRCUMFLEX</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02FD</td><td align="left">U+016D</td><td align="left">LATIN SMALL LETTER U WITH BREVE</td><td align="left">Latin-3</td></tr><tr><td align="left">#x02FE</td><td align="left">U+015D</td><td align="left">LATIN SMALL LETTER S WITH CIRCUMFLEX</td><td align="left">Latin-3</td></tr><tr><td align="left">#x03A2</td><td align="left">U+0138</td><td align="left">LATIN SMALL LETTER KRA</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03A3</td><td align="left">U+0156</td><td align="left">LATIN CAPITAL LETTER R WITH CEDILLA</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03A5</td><td align="left">U+0128</td><td align="left">LATIN CAPITAL LETTER I WITH TILDE</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03A6</td><td align="left">U+013B</td><td align="left">LATIN CAPITAL LETTER L WITH CEDILLA</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03AA</td><td align="left">U+0112</td><td align="left">LATIN CAPITAL LETTER E WITH MACRON</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03AB</td><td align="left">U+0122</td><td align="left">LATIN CAPITAL LETTER G WITH CEDILLA</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03AC</td><td align="left">U+0166</td><td align="left">LATIN CAPITAL LETTER T WITH STROKE</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03B3</td><td align="left">U+0157</td><td align="left">LATIN SMALL LETTER R WITH CEDILLA</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03B5</td><td align="left">U+0129</td><td align="left">LATIN SMALL LETTER I WITH TILDE</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03B6</td><td align="left">U+013C</td><td align="left">LATIN SMALL LETTER L WITH CEDILLA</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03BA</td><td align="left">U+0113</td><td align="left">LATIN SMALL LETTER E WITH MACRON</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03BB</td><td align="left">U+0123</td><td align="left">LATIN SMALL LETTER G WITH CEDILLA</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03BC</td><td align="left">U+0167</td><td align="left">LATIN SMALL LETTER T WITH STROKE</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03BD</td><td align="left">U+014A</td><td align="left">LATIN CAPITAL LETTER ENG</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03BF</td><td align="left">U+014B</td><td align="left">LATIN SMALL LETTER ENG</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03C0</td><td align="left">U+0100</td><td align="left">LATIN CAPITAL LETTER A WITH MACRON</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03C7</td><td align="left">U+012E</td><td align="left">LATIN CAPITAL LETTER I WITH OGONEK</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03CC</td><td align="left">U+0116</td><td align="left">LATIN CAPITAL LETTER E WITH DOT ABOVE</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03CF</td><td align="left">U+012A</td><td align="left">LATIN CAPITAL LETTER I WITH MACRON</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03D1</td><td align="left">U+0145</td><td align="left">LATIN CAPITAL LETTER N WITH CEDILLA</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03D2</td><td align="left">U+014C</td><td align="left">LATIN CAPITAL LETTER O WITH MACRON</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03D3</td><td align="left">U+0136</td><td align="left">LATIN CAPITAL LETTER K WITH CEDILLA</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03D9</td><td align="left">U+0172</td><td align="left">LATIN CAPITAL LETTER U WITH OGONEK</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03DD</td><td align="left">U+0168</td><td align="left">LATIN CAPITAL LETTER U WITH TILDE</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03DE</td><td align="left">U+016A</td><td align="left">LATIN CAPITAL LETTER U WITH MACRON</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03E0</td><td align="left">U+0101</td><td align="left">LATIN SMALL LETTER A WITH MACRON</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03E7</td><td align="left">U+012F</td><td align="left">LATIN SMALL LETTER I WITH OGONEK</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03EC</td><td align="left">U+0117</td><td align="left">LATIN SMALL LETTER E WITH DOT ABOVE</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03EF</td><td align="left">U+012B</td><td align="left">LATIN SMALL LETTER I WITH MACRON</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03F1</td><td align="left">U+0146</td><td align="left">LATIN SMALL LETTER N WITH CEDILLA</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03F2</td><td align="left">U+014D</td><td align="left">LATIN SMALL LETTER O WITH MACRON</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03F3</td><td align="left">U+0137</td><td align="left">LATIN SMALL LETTER K WITH CEDILLA</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03F9</td><td align="left">U+0173</td><td align="left">LATIN SMALL LETTER U WITH OGONEK</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03FD</td><td align="left">U+0169</td><td align="left">LATIN SMALL LETTER U WITH TILDE</td><td align="left">Latin-4</td></tr><tr><td align="left">#x03FE</td><td align="left">U+016B</td><td align="left">LATIN SMALL LETTER U WITH MACRON</td><td align="left">Latin-4</td></tr><tr><td align="left">#x047E</td><td align="left">U+203E</td><td align="left">OVERLINE</td><td align="left">Kana</td></tr><tr><td align="left">#x04A1</td><td align="left">U+3002</td><td align="left">KANA FULL STOP</td><td align="left">Kana</td></tr><tr><td align="left">#x04A2</td><td align="left">U+300C</td><td align="left">KANA OPENING BRACKET</td><td align="left">Kana</td></tr><tr><td align="left">#x04A3</td><td align="left">U+300D</td><td align="left">KANA CLOSING BRACKET</td><td align="left">Kana</td></tr><tr><td align="left">#x04A4</td><td align="left">U+3001</td><td align="left">KANA COMMA</td><td align="left">Kana</td></tr><tr><td align="left">#x04A5</td><td align="left">U+30FB</td><td align="left">KANA CONJUNCTIVE</td><td align="left">Kana</td></tr><tr><td align="left">#x04A6</td><td align="left">U+30F2</td><td align="left">KANA LETTER WO</td><td align="left">Kana</td></tr><tr><td align="left">#x04A7</td><td align="left">U+30A1</td><td align="left">KANA LETTER SMALL A</td><td align="left">Kana</td></tr><tr><td align="left">#x04A8</td><td align="left">U+30A3</td><td align="left">KANA LETTER SMALL I</td><td align="left">Kana</td></tr><tr><td align="left">#x04A9</td><td align="left">U+30A5</td><td align="left">KANA LETTER SMALL U</td><td align="left">Kana</td></tr><tr><td align="left">#x04AA</td><td align="left">U+30A7</td><td align="left">KANA LETTER SMALL E</td><td align="left">Kana</td></tr><tr><td align="left">#x04AB</td><td align="left">U+30A9</td><td align="left">KANA LETTER SMALL O</td><td align="left">Kana</td></tr><tr><td align="left">#x04AC</td><td align="left">U+30E3</td><td align="left">KANA LETTER SMALL YA</td><td align="left">Kana</td></tr><tr><td align="left">#x04AD</td><td align="left">U+30E5</td><td align="left">KANA LETTER SMALL YU</td><td align="left">Kana</td></tr><tr><td align="left">#x04AE</td><td align="left">U+30E7</td><td align="left">KANA LETTER SMALL YO</td><td align="left">Kana</td></tr><tr><td align="left">#x04AF</td><td align="left">U+30C3</td><td align="left">KANA LETTER SMALL TSU</td><td align="left">Kana</td></tr><tr><td align="left">#x04B0</td><td align="left">U+30FC</td><td align="left">PROLONGED SOUND SYMBOL</td><td align="left">Kana</td></tr><tr><td align="left">#x04B1</td><td align="left">U+30A2</td><td align="left">KANA LETTER A</td><td align="left">Kana</td></tr><tr><td align="left">#x04B2</td><td align="left">U+30A4</td><td align="left">KANA LETTER I</td><td align="left">Kana</td></tr><tr><td align="left">#x04B3</td><td align="left">U+30A6</td><td align="left">KANA LETTER U</td><td align="left">Kana</td></tr><tr><td align="left">#x04B4</td><td align="left">U+30A8</td><td align="left">KANA LETTER E</td><td align="left">Kana</td></tr><tr><td align="left">#x04B5</td><td align="left">U+30AA</td><td align="left">KANA LETTER O</td><td align="left">Kana</td></tr><tr><td align="left">#x04B6</td><td align="left">U+30AB</td><td align="left">KANA LETTER KA</td><td align="left">Kana</td></tr><tr><td align="left">#x04B7</td><td align="left">U+30AD</td><td align="left">KANA LETTER KI</td><td align="left">Kana</td></tr><tr><td align="left">#x04B8</td><td align="left">U+30AF</td><td align="left">KANA LETTER KU</td><td align="left">Kana</td></tr><tr><td align="left">#x04B9</td><td align="left">U+30B1</td><td align="left">KANA LETTER KE</td><td align="left">Kana</td></tr><tr><td align="left">#x04BA</td><td align="left">U+30B3</td><td align="left">KANA LETTER KO</td><td align="left">Kana</td></tr><tr><td align="left">#x04BB</td><td align="left">U+30B5</td><td align="left">KANA LETTER SA</td><td align="left">Kana</td></tr><tr><td align="left">#x04BC</td><td align="left">U+30B7</td><td align="left">KANA LETTER SHI</td><td align="left">Kana</td></tr><tr><td align="left">#x04BD</td><td align="left">U+30B9</td><td align="left">KANA LETTER SU</td><td align="left">Kana</td></tr><tr><td align="left">#x04BE</td><td align="left">U+30BB</td><td align="left">KANA LETTER SE</td><td align="left">Kana</td></tr><tr><td align="left">#x04BF</td><td align="left">U+30BD</td><td align="left">KANA LETTER SO</td><td align="left">Kana</td></tr><tr><td align="left">#x04C0</td><td align="left">U+30BF</td><td align="left">KANA LETTER TA</td><td align="left">Kana</td></tr><tr><td align="left">#x04C1</td><td align="left">U+30C1</td><td align="left">KANA LETTER CHI</td><td align="left">Kana</td></tr><tr><td align="left">#x04C2</td><td align="left">U+30C4</td><td align="left">KANA LETTER TSU</td><td align="left">Kana</td></tr><tr><td align="left">#x04C3</td><td align="left">U+30C6</td><td align="left">KANA LETTER TE</td><td align="left">Kana</td></tr><tr><td align="left">#x04C4</td><td align="left">U+30C8</td><td align="left">KANA LETTER TO</td><td align="left">Kana</td></tr><tr><td align="left">#x04C5</td><td align="left">U+30CA</td><td align="left">KANA LETTER NA</td><td align="left">Kana</td></tr><tr><td align="left">#x04C6</td><td align="left">U+30CB</td><td align="left">KANA LETTER NI</td><td align="left">Kana</td></tr><tr><td align="left">#x04C7</td><td align="left">U+30CC</td><td align="left">KANA LETTER NU</td><td align="left">Kana</td></tr><tr><td align="left">#x04C8</td><td align="left">U+30CD</td><td align="left">KANA LETTER NE</td><td align="left">Kana</td></tr><tr><td align="left">#x04C9</td><td align="left">U+30CE</td><td align="left">KANA LETTER NO</td><td align="left">Kana</td></tr><tr><td align="left">#x04CA</td><td align="left">U+30CF</td><td align="left">KANA LETTER HA</td><td align="left">Kana</td></tr><tr><td align="left">#x04CB</td><td align="left">U+30D2</td><td align="left">KANA LETTER HI</td><td align="left">Kana</td></tr><tr><td align="left">#x04CC</td><td align="left">U+30D5</td><td align="left">KANA LETTER FU</td><td align="left">Kana</td></tr><tr><td align="left">#x04CD</td><td align="left">U+30D8</td><td align="left">KANA LETTER HE</td><td align="left">Kana</td></tr><tr><td align="left">#x04CE</td><td align="left">U+30DB</td><td align="left">KANA LETTER HO</td><td align="left">Kana</td></tr><tr><td align="left">#x04CF</td><td align="left">U+30DE</td><td align="left">KANA LETTER MA</td><td align="left">Kana</td></tr><tr><td align="left">#x04D0</td><td align="left">U+30DF</td><td align="left">KANA LETTER MI</td><td align="left">Kana</td></tr><tr><td align="left">#x04D1</td><td align="left">U+30E0</td><td align="left">KANA LETTER MU</td><td align="left">Kana</td></tr><tr><td align="left">#x04D2</td><td align="left">U+30E1</td><td align="left">KANA LETTER ME</td><td align="left">Kana</td></tr><tr><td align="left">#x04D3</td><td align="left">U+30E2</td><td align="left">KANA LETTER MO</td><td align="left">Kana</td></tr><tr><td align="left">#x04D4</td><td align="left">U+30E4</td><td align="left">KANA LETTER YA</td><td align="left">Kana</td></tr><tr><td align="left">#x04D5</td><td align="left">U+30E6</td><td align="left">KANA LETTER YU</td><td align="left">Kana</td></tr><tr><td align="left">#x04D6</td><td align="left">U+30E8</td><td align="left">KANA LETTER YO</td><td align="left">Kana</td></tr><tr><td align="left">#x04D7</td><td align="left">U+30E9</td><td align="left">KANA LETTER RA</td><td align="left">Kana</td></tr><tr><td align="left">#x04D8</td><td align="left">U+30EA</td><td align="left">KANA LETTER RI</td><td align="left">Kana</td></tr><tr><td align="left">#x04D9</td><td align="left">U+30EB</td><td align="left">KANA LETTER RU</td><td align="left">Kana</td></tr><tr><td align="left">#x04DA</td><td align="left">U+30EC</td><td align="left">KANA LETTER RE</td><td align="left">Kana</td></tr><tr><td align="left">#x04DB</td><td align="left">U+30ED</td><td align="left">KANA LETTER RO</td><td align="left">Kana</td></tr><tr><td align="left">#x04DC</td><td align="left">U+30EF</td><td align="left">KANA LETTER WA</td><td align="left">Kana</td></tr><tr><td align="left">#x04DD</td><td align="left">U+30F3</td><td align="left">KANA LETTER N</td><td align="left">Kana</td></tr><tr><td align="left">#x04DE</td><td align="left">U+309B</td><td align="left">VOICED SOUND SYMBOL</td><td align="left">Kana</td></tr><tr><td align="left">#x04DF</td><td align="left">U+309C</td><td align="left">SEMIVOICED SOUND SYMBOL</td><td align="left">Kana</td></tr><tr><td align="left">#x05AC</td><td align="left">U+060C</td><td align="left">ARABIC COMMA</td><td align="left">Arabic</td></tr><tr><td align="left">#x05BB</td><td align="left">U+061B</td><td align="left">ARABIC SEMICOLON</td><td align="left">Arabic</td></tr><tr><td align="left">#x05BF</td><td align="left">U+061F</td><td align="left">ARABIC QUESTION MARK</td><td align="left">Arabic</td></tr><tr><td align="left">#x05C1</td><td align="left">U+0621</td><td align="left">ARABIC LETTER HAMZA</td><td align="left">Arabic</td></tr><tr><td align="left">#x05C2</td><td align="left">U+0622</td><td align="left">ARABIC LETTER ALEF WITH MADDA ABOVE</td><td align="left">Arabic</td></tr><tr><td align="left">#x05C3</td><td align="left">U+0623</td><td align="left">ARABIC LETTER ALEF WITH HAMZA ABOVE</td><td align="left">Arabic</td></tr><tr><td align="left">#x05C4</td><td align="left">U+0624</td><td align="left">ARABIC LETTER WAW WITH HAMZA ABOVE</td><td align="left">Arabic</td></tr><tr><td align="left">#x05C5</td><td align="left">U+0625</td><td align="left">ARABIC LETTER ALEF WITH HAMZA BELOW</td><td align="left">Arabic</td></tr><tr><td align="left">#x05C6</td><td align="left">U+0626</td><td align="left">ARABIC LETTER YEH WITH HAMZA ABOVE</td><td align="left">Arabic</td></tr><tr><td align="left">#x05C7</td><td align="left">U+0627</td><td align="left">ARABIC LETTER ALEF</td><td align="left">Arabic</td></tr><tr><td align="left">#x05C8</td><td align="left">U+0628</td><td align="left">ARABIC LETTER BEH</td><td align="left">Arabic</td></tr><tr><td align="left">#x05C9</td><td align="left">U+0629</td><td align="left">ARABIC LETTER TEH MARBUTA</td><td align="left">Arabic</td></tr><tr><td align="left">#x05CA</td><td align="left">U+062A</td><td align="left">ARABIC LETTER TEH</td><td align="left">Arabic</td></tr><tr><td align="left">#x05CB</td><td align="left">U+062B</td><td align="left">ARABIC LETTER THEH</td><td align="left">Arabic</td></tr><tr><td align="left">#x05CC</td><td align="left">U+062C</td><td align="left">ARABIC LETTER JEEM</td><td align="left">Arabic</td></tr><tr><td align="left">#x05CD</td><td align="left">U+062D</td><td align="left">ARABIC LETTER HAH</td><td align="left">Arabic</td></tr><tr><td align="left">#x05CE</td><td align="left">U+062E</td><td align="left">ARABIC LETTER KHAH</td><td align="left">Arabic</td></tr><tr><td align="left">#x05CF</td><td align="left">U+062F</td><td align="left">ARABIC LETTER DAL</td><td align="left">Arabic</td></tr><tr><td align="left">#x05D0</td><td align="left">U+0630</td><td align="left">ARABIC LETTER THAL</td><td align="left">Arabic</td></tr><tr><td align="left">#x05D1</td><td align="left">U+0631</td><td align="left">ARABIC LETTER REH</td><td align="left">Arabic</td></tr><tr><td align="left">#x05D2</td><td align="left">U+0632</td><td align="left">ARABIC LETTER ZAIN</td><td align="left">Arabic</td></tr><tr><td align="left">#x05D3</td><td align="left">U+0633</td><td align="left">ARABIC LETTER SEEN</td><td align="left">Arabic</td></tr><tr><td align="left">#x05D4</td><td align="left">U+0634</td><td align="left">ARABIC LETTER SHEEN</td><td align="left">Arabic</td></tr><tr><td align="left">#x05D5</td><td align="left">U+0635</td><td align="left">ARABIC LETTER SAD</td><td align="left">Arabic</td></tr><tr><td align="left">#x05D6</td><td align="left">U+0636</td><td align="left">ARABIC LETTER DAD</td><td align="left">Arabic</td></tr><tr><td align="left">#x05D7</td><td align="left">U+0637</td><td align="left">ARABIC LETTER TAH</td><td align="left">Arabic</td></tr><tr><td align="left">#x05D8</td><td align="left">U+0638</td><td align="left">ARABIC LETTER ZAH</td><td align="left">Arabic</td></tr><tr><td align="left">#x05D9</td><td align="left">U+0639</td><td align="left">ARABIC LETTER AIN</td><td align="left">Arabic</td></tr><tr><td align="left">#x05DA</td><td align="left">U+063A</td><td align="left">ARABIC LETTER GHAIN</td><td align="left">Arabic</td></tr><tr><td align="left">#x05E0</td><td align="left">U+0640</td><td align="left">ARABIC TATWEEL</td><td align="left">Arabic</td></tr><tr><td align="left">#x05E1</td><td align="left">U+0641</td><td align="left">ARABIC LETTER FEH</td><td align="left">Arabic</td></tr><tr><td align="left">#x05E2</td><td align="left">U+0642</td><td align="left">ARABIC LETTER QAF</td><td align="left">Arabic</td></tr><tr><td align="left">#x05E3</td><td align="left">U+0643</td><td align="left">ARABIC LETTER KAF</td><td align="left">Arabic</td></tr><tr><td align="left">#x05E4</td><td align="left">U+0644</td><td align="left">ARABIC LETTER LAM</td><td align="left">Arabic</td></tr><tr><td align="left">#x05E5</td><td align="left">U+0645</td><td align="left">ARABIC LETTER MEEM</td><td align="left">Arabic</td></tr><tr><td align="left">#x05E6</td><td align="left">U+0646</td><td align="left">ARABIC LETTER NOON</td><td align="left">Arabic</td></tr><tr><td align="left">#x05E7</td><td align="left">U+0647</td><td align="left">ARABIC LETTER HEH</td><td align="left">Arabic</td></tr><tr><td align="left">#x05E8</td><td align="left">U+0648</td><td align="left">ARABIC LETTER WAW</td><td align="left">Arabic</td></tr><tr><td align="left">#x05E9</td><td align="left">U+0649</td><td align="left">ARABIC LETTER ALEF MAKSURA</td><td align="left">Arabic</td></tr><tr><td align="left">#x05EA</td><td align="left">U+064A</td><td align="left">ARABIC LETTER YEH</td><td align="left">Arabic</td></tr><tr><td align="left">#x05EB</td><td align="left">U+064B</td><td align="left">ARABIC FATHATAN</td><td align="left">Arabic</td></tr><tr><td align="left">#x05EC</td><td align="left">U+064C</td><td align="left">ARABIC DAMMATAN</td><td align="left">Arabic</td></tr><tr><td align="left">#x05ED</td><td align="left">U+064D</td><td align="left">ARABIC KASRATAN</td><td align="left">Arabic</td></tr><tr><td align="left">#x05EE</td><td align="left">U+064E</td><td align="left">ARABIC FATHA</td><td align="left">Arabic</td></tr><tr><td align="left">#x05EF</td><td align="left">U+064F</td><td align="left">ARABIC DAMMA</td><td align="left">Arabic</td></tr><tr><td align="left">#x05F0</td><td align="left">U+0650</td><td align="left">ARABIC KASRA</td><td align="left">Arabic</td></tr><tr><td align="left">#x05F1</td><td align="left">U+0651</td><td align="left">ARABIC SHADDA</td><td align="left">Arabic</td></tr><tr><td align="left">#x05F2</td><td align="left">U+0652</td><td align="left">ARABIC SUKUN</td><td align="left">Arabic</td></tr><tr><td align="left">#x06A1</td><td align="left">U+0452</td><td align="left">CYRILLIC SMALL LETTER DJE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06A2</td><td align="left">U+0453</td><td align="left">CYRILLIC SMALL LETTER GJE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06A3</td><td align="left">U+0451</td><td align="left">CYRILLIC SMALL LETTER IO</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06A4</td><td align="left">U+0454</td><td align="left">CYRILLIC SMALL LETTER UKRAINIAN IE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06A5</td><td align="left">U+0455</td><td align="left">CYRILLIC SMALL LETTER DZE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06A6</td><td align="left">U+0456</td><td align="left">CYRILLIC SMALL LETTER BYELORUSSIAN-UKRAINIAN I</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06A7</td><td align="left">U+0457</td><td align="left">CYRILLIC SMALL LETTER YI</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06A8</td><td align="left">U+0458</td><td align="left">CYRILLIC SMALL LETTER JE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06A9</td><td align="left">U+0459</td><td align="left">CYRILLIC SMALL LETTER LJE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06AA</td><td align="left">U+045A</td><td align="left">CYRILLIC SMALL LETTER NJE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06AB</td><td align="left">U+045B</td><td align="left">CYRILLIC SMALL LETTER TSHE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06AC</td><td align="left">U+045C</td><td align="left">CYRILLIC SMALL LETTER KJE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06AD</td><td align="left">U+0491</td><td align="left">CYRILLIC SMALL LETTER GHE WITH UPTURN</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06AE</td><td align="left">U+045E</td><td align="left">CYRILLIC SMALL LETTER SHORT U</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06AF</td><td align="left">U+045F</td><td align="left">CYRILLIC SMALL LETTER DZHE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06B0</td><td align="left">U+2116</td><td align="left">NUMERO SIGN</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06B1</td><td align="left">U+0402</td><td align="left">CYRILLIC CAPITAL LETTER DJE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06B2</td><td align="left">U+0403</td><td align="left">CYRILLIC CAPITAL LETTER GJE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06B3</td><td align="left">U+0401</td><td align="left">CYRILLIC CAPITAL LETTER IO</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06B4</td><td align="left">U+0404</td><td align="left">CYRILLIC CAPITAL LETTER UKRAINIAN IE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06B5</td><td align="left">U+0405</td><td align="left">CYRILLIC CAPITAL LETTER DZE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06B6</td><td align="left">U+0406</td><td align="left">CYRILLIC CAPITAL LETTER BYELORUSSIAN-UKRAINIAN I</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06B7</td><td align="left">U+0407</td><td align="left">CYRILLIC CAPITAL LETTER YI</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06B8</td><td align="left">U+0408</td><td align="left">CYRILLIC CAPITAL LETTER JE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06B9</td><td align="left">U+0409</td><td align="left">CYRILLIC CAPITAL LETTER LJE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06BA</td><td align="left">U+040A</td><td align="left">CYRILLIC CAPITAL LETTER NJE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06BB</td><td align="left">U+040B</td><td align="left">CYRILLIC CAPITAL LETTER TSHE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06BC</td><td align="left">U+040C</td><td align="left">CYRILLIC CAPITAL LETTER KJE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06BD</td><td align="left">U+0490</td><td align="left">CYRILLIC CAPITAL LETTER GHE WITH UPTURN</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06BE</td><td align="left">U+040E</td><td align="left">CYRILLIC CAPITAL LETTER SHORT U</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06BF</td><td align="left">U+040F</td><td align="left">CYRILLIC CAPITAL LETTER DZHE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06C0</td><td align="left">U+044E</td><td align="left">CYRILLIC SMALL LETTER YU</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06C1</td><td align="left">U+0430</td><td align="left">CYRILLIC SMALL LETTER A</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06C2</td><td align="left">U+0431</td><td align="left">CYRILLIC SMALL LETTER BE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06C3</td><td align="left">U+0446</td><td align="left">CYRILLIC SMALL LETTER TSE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06C4</td><td align="left">U+0434</td><td align="left">CYRILLIC SMALL LETTER DE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06C5</td><td align="left">U+0435</td><td align="left">CYRILLIC SMALL LETTER IE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06C6</td><td align="left">U+0444</td><td align="left">CYRILLIC SMALL LETTER EF</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06C7</td><td align="left">U+0433</td><td align="left">CYRILLIC SMALL LETTER GHE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06C8</td><td align="left">U+0445</td><td align="left">CYRILLIC SMALL LETTER HA</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06C9</td><td align="left">U+0438</td><td align="left">CYRILLIC SMALL LETTER I</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06CA</td><td align="left">U+0439</td><td align="left">CYRILLIC SMALL LETTER SHORT I</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06CB</td><td align="left">U+043A</td><td align="left">CYRILLIC SMALL LETTER KA</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06CC</td><td align="left">U+043B</td><td align="left">CYRILLIC SMALL LETTER EL</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06CD</td><td align="left">U+043C</td><td align="left">CYRILLIC SMALL LETTER EM</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06CE</td><td align="left">U+043D</td><td align="left">CYRILLIC SMALL LETTER EN</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06CF</td><td align="left">U+043E</td><td align="left">CYRILLIC SMALL LETTER O</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06D0</td><td align="left">U+043F</td><td align="left">CYRILLIC SMALL LETTER PE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06D1</td><td align="left">U+044F</td><td align="left">CYRILLIC SMALL LETTER YA</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06D2</td><td align="left">U+0440</td><td align="left">CYRILLIC SMALL LETTER ER</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06D3</td><td align="left">U+0441</td><td align="left">CYRILLIC SMALL LETTER ES</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06D4</td><td align="left">U+0442</td><td align="left">CYRILLIC SMALL LETTER TE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06D5</td><td align="left">U+0443</td><td align="left">CYRILLIC SMALL LETTER U</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06D6</td><td align="left">U+0436</td><td align="left">CYRILLIC SMALL LETTER ZHE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06D7</td><td align="left">U+0432</td><td align="left">CYRILLIC SMALL LETTER VE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06D8</td><td align="left">U+044C</td><td align="left">CYRILLIC SMALL LETTER SOFT SIGN</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06D9</td><td align="left">U+044B</td><td align="left">CYRILLIC SMALL LETTER YERU</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06DA</td><td align="left">U+0437</td><td align="left">CYRILLIC SMALL LETTER ZE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06DB</td><td align="left">U+0448</td><td align="left">CYRILLIC SMALL LETTER SHA</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06DC</td><td align="left">U+044D</td><td align="left">CYRILLIC SMALL LETTER E</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06DD</td><td align="left">U+0449</td><td align="left">CYRILLIC SMALL LETTER SHCHA</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06DE</td><td align="left">U+0447</td><td align="left">CYRILLIC SMALL LETTER CHE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06DF</td><td align="left">U+044A</td><td align="left">CYRILLIC SMALL LETTER HARD SIGN</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06E0</td><td align="left">U+042E</td><td align="left">CYRILLIC CAPITAL LETTER YU</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06E1</td><td align="left">U+0410</td><td align="left">CYRILLIC CAPITAL LETTER A</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06E2</td><td align="left">U+0411</td><td align="left">CYRILLIC CAPITAL LETTER BE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06E3</td><td align="left">U+0426</td><td align="left">CYRILLIC CAPITAL LETTER TSE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06E4</td><td align="left">U+0414</td><td align="left">CYRILLIC CAPITAL LETTER DE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06E5</td><td align="left">U+0415</td><td align="left">CYRILLIC CAPITAL LETTER IE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06E6</td><td align="left">U+0424</td><td align="left">CYRILLIC CAPITAL LETTER EF</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06E7</td><td align="left">U+0413</td><td align="left">CYRILLIC CAPITAL LETTER GHE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06E8</td><td align="left">U+0425</td><td align="left">CYRILLIC CAPITAL LETTER HA</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06E9</td><td align="left">U+0418</td><td align="left">CYRILLIC CAPITAL LETTER I</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06EA</td><td align="left">U+0419</td><td align="left">CYRILLIC CAPITAL LETTER SHORT I</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06EB</td><td align="left">U+041A</td><td align="left">CYRILLIC CAPITAL LETTER KA</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06EC</td><td align="left">U+041B</td><td align="left">CYRILLIC CAPITAL LETTER EL</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06ED</td><td align="left">U+041C</td><td align="left">CYRILLIC CAPITAL LETTER EM</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06EE</td><td align="left">U+041D</td><td align="left">CYRILLIC CAPITAL LETTER EN</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06EF</td><td align="left">U+041E</td><td align="left">CYRILLIC CAPITAL LETTER O</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06F0</td><td align="left">U+041F</td><td align="left">CYRILLIC CAPITAL LETTER PE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06F1</td><td align="left">U+042F</td><td align="left">CYRILLIC CAPITAL LETTER YA</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06F2</td><td align="left">U+0420</td><td align="left">CYRILLIC CAPITAL LETTER ER</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06F3</td><td align="left">U+0421</td><td align="left">CYRILLIC CAPITAL LETTER ES</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06F4</td><td align="left">U+0422</td><td align="left">CYRILLIC CAPITAL LETTER TE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06F5</td><td align="left">U+0423</td><td align="left">CYRILLIC CAPITAL LETTER U</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06F6</td><td align="left">U+0416</td><td align="left">CYRILLIC CAPITAL LETTER ZHE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06F7</td><td align="left">U+0412</td><td align="left">CYRILLIC CAPITAL LETTER VE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06F8</td><td align="left">U+042C</td><td align="left">CYRILLIC CAPITAL LETTER SOFT SIGN</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06F9</td><td align="left">U+042B</td><td align="left">CYRILLIC CAPITAL LETTER YERU</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06FA</td><td align="left">U+0417</td><td align="left">CYRILLIC CAPITAL LETTER ZE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06FB</td><td align="left">U+0428</td><td align="left">CYRILLIC CAPITAL LETTER SHA</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06FC</td><td align="left">U+042D</td><td align="left">CYRILLIC CAPITAL LETTER E</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06FD</td><td align="left">U+0429</td><td align="left">CYRILLIC CAPITAL LETTER SHCHA</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06FE</td><td align="left">U+0427</td><td align="left">CYRILLIC CAPITAL LETTER CHE</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x06FF</td><td align="left">U+042A</td><td align="left">CYRILLIC CAPITAL LETTER HARD SIGN</td><td align="left">Cyrillic</td></tr><tr><td align="left">#x07A1</td><td align="left">U+0386</td><td align="left">GREEK CAPITAL LETTER ALPHA WITH TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07A2</td><td align="left">U+0388</td><td align="left">GREEK CAPITAL LETTER EPSILON WITH TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07A3</td><td align="left">U+0389</td><td align="left">GREEK CAPITAL LETTER ETA WITH TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07A4</td><td align="left">U+038A</td><td align="left">GREEK CAPITAL LETTER IOTA WITH TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07A5</td><td align="left">U+03AA</td><td align="left">GREEK CAPITAL LETTER IOTA WITH DIALYTIKA</td><td align="left">Greek</td></tr><tr><td align="left">#x07A7</td><td align="left">U+038C</td><td align="left">GREEK CAPITAL LETTER OMICRON WITH TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07A8</td><td align="left">U+038E</td><td align="left">GREEK CAPITAL LETTER UPSILON WITH TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07A9</td><td align="left">U+03AB</td><td align="left">GREEK CAPITAL LETTER UPSILON WITH DIALYTIKA</td><td align="left">Greek</td></tr><tr><td align="left">#x07AB</td><td align="left">U+038F</td><td align="left">GREEK CAPITAL LETTER OMEGA WITH TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07AE</td><td align="left">U+0385</td><td align="left">GREEK DIALYTIKA TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07AF</td><td align="left">U+2015</td><td align="left">HORIZONTAL BAR</td><td align="left">Greek</td></tr><tr><td align="left">#x07B1</td><td align="left">U+03AC</td><td align="left">GREEK SMALL LETTER ALPHA WITH TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07B2</td><td align="left">U+03AD</td><td align="left">GREEK SMALL LETTER EPSILON WITH TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07B3</td><td align="left">U+03AE</td><td align="left">GREEK SMALL LETTER ETA WITH TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07B4</td><td align="left">U+03AF</td><td align="left">GREEK SMALL LETTER IOTA WITH TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07B5</td><td align="left">U+03CA</td><td align="left">GREEK SMALL LETTER IOTA WITH DIALYTIKA</td><td align="left">Greek</td></tr><tr><td align="left">#x07B6</td><td align="left">U+0390</td><td align="left">GREEK SMALL LETTER IOTA WITH DIALYTIKA AND TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07B7</td><td align="left">U+03CC</td><td align="left">GREEK SMALL LETTER OMICRON WITH TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07B8</td><td align="left">U+03CD</td><td align="left">GREEK SMALL LETTER UPSILON WITH TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07B9</td><td align="left">U+03CB</td><td align="left">GREEK SMALL LETTER UPSILON WITH DIALYTIKA</td><td align="left">Greek</td></tr><tr><td align="left">#x07BA</td><td align="left">U+03B0</td><td align="left">GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07BB</td><td align="left">U+03CE</td><td align="left">GREEK SMALL LETTER OMEGA WITH TONOS</td><td align="left">Greek</td></tr><tr><td align="left">#x07C1</td><td align="left">U+0391</td><td align="left">GREEK CAPITAL LETTER ALPHA</td><td align="left">Greek</td></tr><tr><td align="left">#x07C2</td><td align="left">U+0392</td><td align="left">GREEK CAPITAL LETTER BETA</td><td align="left">Greek</td></tr><tr><td align="left">#x07C3</td><td align="left">U+0393</td><td align="left">GREEK CAPITAL LETTER GAMMA</td><td align="left">Greek</td></tr><tr><td align="left">#x07C4</td><td align="left">U+0394</td><td align="left">GREEK CAPITAL LETTER DELTA</td><td align="left">Greek</td></tr><tr><td align="left">#x07C5</td><td align="left">U+0395</td><td align="left">GREEK CAPITAL LETTER EPSILON</td><td align="left">Greek</td></tr><tr><td align="left">#x07C6</td><td align="left">U+0396</td><td align="left">GREEK CAPITAL LETTER ZETA</td><td align="left">Greek</td></tr><tr><td align="left">#x07C7</td><td align="left">U+0397</td><td align="left">GREEK CAPITAL LETTER ETA</td><td align="left">Greek</td></tr><tr><td align="left">#x07C8</td><td align="left">U+0398</td><td align="left">GREEK CAPITAL LETTER THETA</td><td align="left">Greek</td></tr><tr><td align="left">#x07C9</td><td align="left">U+0399</td><td align="left">GREEK CAPITAL LETTER IOTA</td><td align="left">Greek</td></tr><tr><td align="left">#x07CA</td><td align="left">U+039A</td><td align="left">GREEK CAPITAL LETTER KAPPA</td><td align="left">Greek</td></tr><tr><td align="left">#x07CB</td><td align="left">U+039B</td><td align="left">GREEK CAPITAL LETTER LAMDA</td><td align="left">Greek</td></tr><tr><td align="left">#x07CC</td><td align="left">U+039C</td><td align="left">GREEK CAPITAL LETTER MU</td><td align="left">Greek</td></tr><tr><td align="left">#x07CD</td><td align="left">U+039D</td><td align="left">GREEK CAPITAL LETTER NU</td><td align="left">Greek</td></tr><tr><td align="left">#x07CE</td><td align="left">U+039E</td><td align="left">GREEK CAPITAL LETTER XI</td><td align="left">Greek</td></tr><tr><td align="left">#x07CF</td><td align="left">U+039F</td><td align="left">GREEK CAPITAL LETTER OMICRON</td><td align="left">Greek</td></tr><tr><td align="left">#x07D0</td><td align="left">U+03A0</td><td align="left">GREEK CAPITAL LETTER PI</td><td align="left">Greek</td></tr><tr><td align="left">#x07D1</td><td align="left">U+03A1</td><td align="left">GREEK CAPITAL LETTER RHO</td><td align="left">Greek</td></tr><tr><td align="left">#x07D2</td><td align="left">U+03A3</td><td align="left">GREEK CAPITAL LETTER SIGMA</td><td align="left">Greek</td></tr><tr><td align="left">#x07D4</td><td align="left">U+03A4</td><td align="left">GREEK CAPITAL LETTER TAU</td><td align="left">Greek</td></tr><tr><td align="left">#x07D5</td><td align="left">U+03A5</td><td align="left">GREEK CAPITAL LETTER UPSILON</td><td align="left">Greek</td></tr><tr><td align="left">#x07D6</td><td align="left">U+03A6</td><td align="left">GREEK CAPITAL LETTER PHI</td><td align="left">Greek</td></tr><tr><td align="left">#x07D7</td><td align="left">U+03A7</td><td align="left">GREEK CAPITAL LETTER CHI</td><td align="left">Greek</td></tr><tr><td align="left">#x07D8</td><td align="left">U+03A8</td><td align="left">GREEK CAPITAL LETTER PSI</td><td align="left">Greek</td></tr><tr><td align="left">#x07D9</td><td align="left">U+03A9</td><td align="left">GREEK CAPITAL LETTER OMEGA</td><td align="left">Greek</td></tr><tr><td align="left">#x07E1</td><td align="left">U+03B1</td><td align="left">GREEK SMALL LETTER ALPHA</td><td align="left">Greek</td></tr><tr><td align="left">#x07E2</td><td align="left">U+03B2</td><td align="left">GREEK SMALL LETTER BETA</td><td align="left">Greek</td></tr><tr><td align="left">#x07E3</td><td align="left">U+03B3</td><td align="left">GREEK SMALL LETTER GAMMA</td><td align="left">Greek</td></tr><tr><td align="left">#x07E4</td><td align="left">U+03B4</td><td align="left">GREEK SMALL LETTER DELTA</td><td align="left">Greek</td></tr><tr><td align="left">#x07E5</td><td align="left">U+03B5</td><td align="left">GREEK SMALL LETTER EPSILON</td><td align="left">Greek</td></tr><tr><td align="left">#x07E6</td><td align="left">U+03B6</td><td align="left">GREEK SMALL LETTER ZETA</td><td align="left">Greek</td></tr><tr><td align="left">#x07E7</td><td align="left">U+03B7</td><td align="left">GREEK SMALL LETTER ETA</td><td align="left">Greek</td></tr><tr><td align="left">#x07E8</td><td align="left">U+03B8</td><td align="left">GREEK SMALL LETTER THETA</td><td align="left">Greek</td></tr><tr><td align="left">#x07E9</td><td align="left">U+03B9</td><td align="left">GREEK SMALL LETTER IOTA</td><td align="left">Greek</td></tr><tr><td align="left">#x07EA</td><td align="left">U+03BA</td><td align="left">GREEK SMALL LETTER KAPPA</td><td align="left">Greek</td></tr><tr><td align="left">#x07EB</td><td align="left">U+03BB</td><td align="left">GREEK SMALL LETTER LAMDA</td><td align="left">Greek</td></tr><tr><td align="left">#x07EC</td><td align="left">U+03BC</td><td align="left">GREEK SMALL LETTER MU</td><td align="left">Greek</td></tr><tr><td align="left">#x07ED</td><td align="left">U+03BD</td><td align="left">GREEK SMALL LETTER NU</td><td align="left">Greek</td></tr><tr><td align="left">#x07EE</td><td align="left">U+03BE</td><td align="left">GREEK SMALL LETTER XI</td><td align="left">Greek</td></tr><tr><td align="left">#x07EF</td><td align="left">U+03BF</td><td align="left">GREEK SMALL LETTER OMICRON</td><td align="left">Greek</td></tr><tr><td align="left">#x07F0</td><td align="left">U+03C0</td><td align="left">GREEK SMALL LETTER PI</td><td align="left">Greek</td></tr><tr><td align="left">#x07F1</td><td align="left">U+03C1</td><td align="left">GREEK SMALL LETTER RHO</td><td align="left">Greek</td></tr><tr><td align="left">#x07F2</td><td align="left">U+03C3</td><td align="left">GREEK SMALL LETTER SIGMA</td><td align="left">Greek</td></tr><tr><td align="left">#x07F3</td><td align="left">U+03C2</td><td align="left">GREEK SMALL LETTER FINAL SIGMA</td><td align="left">Greek</td></tr><tr><td align="left">#x07F4</td><td align="left">U+03C4</td><td align="left">GREEK SMALL LETTER TAU</td><td align="left">Greek</td></tr><tr><td align="left">#x07F5</td><td align="left">U+03C5</td><td align="left">GREEK SMALL LETTER UPSILON</td><td align="left">Greek</td></tr><tr><td align="left">#x07F6</td><td align="left">U+03C6</td><td align="left">GREEK SMALL LETTER PHI</td><td align="left">Greek</td></tr><tr><td align="left">#x07F7</td><td align="left">U+03C7</td><td align="left">GREEK SMALL LETTER CHI</td><td align="left">Greek</td></tr><tr><td align="left">#x07F8</td><td align="left">U+03C8</td><td align="left">GREEK SMALL LETTER PSI</td><td align="left">Greek</td></tr><tr><td align="left">#x07F9</td><td align="left">U+03C9</td><td align="left">GREEK SMALL LETTER OMEGA</td><td align="left">Greek</td></tr><tr><td align="left">#x08A1</td><td align="left">U+23B7</td><td align="left">LEFT RADICAL</td><td align="left">Technical</td></tr><tr><td align="left">#x08A2</td><td align="left">-</td><td align="left">TOP LEFT RADICAL</td><td align="left">Technical</td></tr><tr><td align="left">#x08A3</td><td align="left">-</td><td align="left">HORIZONTAL CONNECTOR</td><td align="left">Technical</td></tr><tr><td align="left">#x08A4</td><td align="left">U+2320</td><td align="left">TOP INTEGRAL</td><td align="left">Technical</td></tr><tr><td align="left">#x08A5</td><td align="left">U+2321</td><td align="left">BOTTOM INTEGRAL</td><td align="left">Technical</td></tr><tr><td align="left">#x08A6</td><td align="left">-</td><td align="left">VERTICAL CONNECTOR</td><td align="left">Technical</td></tr><tr><td align="left">#x08A7</td><td align="left">U+23A1</td><td align="left">TOP LEFT SQUARE BRACKET</td><td align="left">Technical</td></tr><tr><td align="left">#x08A8</td><td align="left">U+23A3</td><td align="left">BOTTOM LEFT SQUARE BRACKET</td><td align="left">Technical</td></tr><tr><td align="left">#x08A9</td><td align="left">U+23A4</td><td align="left">TOP RIGHT SQUARE BRACKET</td><td align="left">Technical</td></tr><tr><td align="left">#x08AA</td><td align="left">U+23A6</td><td align="left">BOTTOM RIGHT SQUARE BRACKET</td><td align="left">Technical</td></tr><tr><td align="left">#x08AB</td><td align="left">U+239B</td><td align="left">TOP LEFT PARENTHESIS</td><td align="left">Technical</td></tr><tr><td align="left">#x08AC</td><td align="left">U+239D</td><td align="left">BOTTOM LEFT PARENTHESIS</td><td align="left">Technical</td></tr><tr><td align="left">#x08AD</td><td align="left">U+239E</td><td align="left">TOP RIGHT PARENTHESIS</td><td align="left">Technical</td></tr><tr><td align="left">#x08AE</td><td align="left">U+23A0</td><td align="left">BOTTOM RIGHT PARENTHESIS</td><td align="left">Technical</td></tr><tr><td align="left">#x08AF</td><td align="left">U+23A8</td><td align="left">LEFT MIDDLE CURLY BRACE</td><td align="left">Technical</td></tr><tr><td align="left">#x08B0</td><td align="left">U+23AC</td><td align="left">RIGHT MIDDLE CURLY BRACE</td><td align="left">Technical</td></tr><tr><td align="left">#x08B1</td><td align="left">-</td><td align="left">TOP LEFT SUMMATION</td><td align="left">Technical</td></tr><tr><td align="left">#x08B2</td><td align="left">-</td><td align="left">BOTTOM LEFT SUMMATION</td><td align="left">Technical</td></tr><tr><td align="left">#x08B3</td><td align="left">-</td><td align="left">TOP VERTICAL SUMMATION CONNECTOR</td><td align="left">Technical</td></tr><tr><td align="left">#x08B4</td><td align="left">-</td><td align="left">BOTTOM VERTICAL SUMMATION CONNECTOR</td><td align="left">Technical</td></tr><tr><td align="left">#x08B5</td><td align="left">-</td><td align="left">TOP RIGHT SUMMATION</td><td align="left">Technical</td></tr><tr><td align="left">#x08B6</td><td align="left">-</td><td align="left">BOTTOM RIGHT SUMMATION</td><td align="left">Technical</td></tr><tr><td align="left">#x08B7</td><td align="left">-</td><td align="left">RIGHT MIDDLE SUMMATION</td><td align="left">Technical</td></tr><tr><td align="left">#x08BC</td><td align="left">U+2264</td><td align="left">LESS THAN OR EQUAL SIGN</td><td align="left">Technical</td></tr><tr><td align="left">#x08BD</td><td align="left">U+2260</td><td align="left">NOT EQUAL SIGN</td><td align="left">Technical</td></tr><tr><td align="left">#x08BE</td><td align="left">U+2265</td><td align="left">GREATER THAN OR EQUAL SIGN</td><td align="left">Technical</td></tr><tr><td align="left">#x08BF</td><td align="left">U+222B</td><td align="left">INTEGRAL</td><td align="left">Technical</td></tr><tr><td align="left">#x08C0</td><td align="left">U+2234</td><td align="left">THEREFORE</td><td align="left">Technical</td></tr><tr><td align="left">#x08C1</td><td align="left">U+221D</td><td align="left">VARIATION, PROPORTIONAL TO</td><td align="left">Technical</td></tr><tr><td align="left">#x08C2</td><td align="left">U+221E</td><td align="left">INFINITY</td><td align="left">Technical</td></tr><tr><td align="left">#x08C5</td><td align="left">U+2207</td><td align="left">NABLA, DEL</td><td align="left">Technical</td></tr><tr><td align="left">#x08C8</td><td align="left">U+223C</td><td align="left">IS APPROXIMATE TO</td><td align="left">Technical</td></tr><tr><td align="left">#x08C9</td><td align="left">U+2243</td><td align="left">SIMILAR OR EQUAL TO</td><td align="left">Technical</td></tr><tr><td align="left">#x08CD</td><td align="left">U+21D4</td><td align="left">IF AND ONLY IF</td><td align="left">Technical</td></tr><tr><td align="left">#x08CE</td><td align="left">U+21D2</td><td align="left">IMPLIES</td><td align="left">Technical</td></tr><tr><td align="left">#x08CF</td><td align="left">U+2261</td><td align="left">IDENTICAL TO</td><td align="left">Technical</td></tr><tr><td align="left">#x08D6</td><td align="left">U+221A</td><td align="left">RADICAL</td><td align="left">Technical</td></tr><tr><td align="left">#x08DA</td><td align="left">U+2282</td><td align="left">IS INCLUDED IN</td><td align="left">Technical</td></tr><tr><td align="left">#x08DB</td><td align="left">U+2283</td><td align="left">INCLUDES</td><td align="left">Technical</td></tr><tr><td align="left">#x08DC</td><td align="left">U+2229</td><td align="left">INTERSECTION</td><td align="left">Technical</td></tr><tr><td align="left">#x08DD</td><td align="left">U+222A</td><td align="left">UNION</td><td align="left">Technical</td></tr><tr><td align="left">#x08DE</td><td align="left">U+2227</td><td align="left">LOGICAL AND</td><td align="left">Technical</td></tr><tr><td align="left">#x08DF</td><td align="left">U+2228</td><td align="left">LOGICAL OR</td><td align="left">Technical</td></tr><tr><td align="left">#x08EF</td><td align="left">U+2202</td><td align="left">PARTIAL DERIVATIVE</td><td align="left">Technical</td></tr><tr><td align="left">#x08F6</td><td align="left">U+0192</td><td align="left">FUNCTION</td><td align="left">Technical</td></tr><tr><td align="left">#x08FB</td><td align="left">U+2190</td><td align="left">LEFT ARROW</td><td align="left">Technical</td></tr><tr><td align="left">#x08FC</td><td align="left">U+2191</td><td align="left">UPWARD ARROW</td><td align="left">Technical</td></tr><tr><td align="left">#x08FD</td><td align="left">U+2192</td><td align="left">RIGHT ARROW</td><td align="left">Technical</td></tr><tr><td align="left">#x08FE</td><td align="left">U+2193</td><td align="left">DOWNWARD ARROW</td><td align="left">Technical</td></tr><tr><td align="left">#x09DF</td><td align="left">-</td><td align="left">BLANK</td><td align="left">Special</td></tr><tr><td align="left">#x09E0</td><td align="left">U+25C6</td><td align="left">SOLID DIAMOND</td><td align="left">Special</td></tr><tr><td align="left">#x09E1</td><td align="left">U+2592</td><td align="left">CHECKERBOARD</td><td align="left">Special</td></tr><tr><td align="left">#x09E2</td><td align="left">U+2409</td><td align="left">"HT"</td><td align="left">Special</td></tr><tr><td align="left">#x09E3</td><td align="left">U+240C</td><td align="left">"FF"</td><td align="left">Special</td></tr><tr><td align="left">#x09E4</td><td align="left">U+240D</td><td align="left">"CR"</td><td align="left">Special</td></tr><tr><td align="left">#x09E5</td><td align="left">U+240A</td><td align="left">"LF"</td><td align="left">Special</td></tr><tr><td align="left">#x09E8</td><td align="left">U+2424</td><td align="left">"NL"</td><td align="left">Special</td></tr><tr><td align="left">#x09E9</td><td align="left">U+240B</td><td align="left">"VT"</td><td align="left">Special</td></tr><tr><td align="left">#x09EA</td><td align="left">U+2518</td><td align="left">LOWER-RIGHT CORNER</td><td align="left">Special</td></tr><tr><td align="left">#x09EB</td><td align="left">U+2510</td><td align="left">UPPER-RIGHT CORNER</td><td align="left">Special</td></tr><tr><td align="left">#x09EC</td><td align="left">U+250C</td><td align="left">UPPER-LEFT CORNER</td><td align="left">Special</td></tr><tr><td align="left">#x09ED</td><td align="left">U+2514</td><td align="left">LOWER-LEFT CORNER</td><td align="left">Special</td></tr><tr><td align="left">#x09EE</td><td align="left">U+253C</td><td align="left">CROSSING-LINES</td><td align="left">Special</td></tr><tr><td align="left">#x09EF</td><td align="left">U+23BA</td><td align="left">HORIZONTAL LINE, SCAN 1</td><td align="left">Special</td></tr><tr><td align="left">#x09F0</td><td align="left">U+23BB</td><td align="left">HORIZONTAL LINE, SCAN 3</td><td align="left">Special</td></tr><tr><td align="left">#x09F1</td><td align="left">U+2500</td><td align="left">HORIZONTAL LINE, SCAN 5</td><td align="left">Special</td></tr><tr><td align="left">#x09F2</td><td align="left">U+23BC</td><td align="left">HORIZONTAL LINE, SCAN 7</td><td align="left">Special</td></tr><tr><td align="left">#x09F3</td><td align="left">U+23BD</td><td align="left">HORIZONTAL LINE, SCAN 9</td><td align="left">Special</td></tr><tr><td align="left">#x09F4</td><td align="left">U+251C</td><td align="left">LEFT "T"</td><td align="left">Special</td></tr><tr><td align="left">#x09F5</td><td align="left">U+2524</td><td align="left">RIGHT "T"</td><td align="left">Special</td></tr><tr><td align="left">#x09F6</td><td align="left">U+2534</td><td align="left">BOTTOM "T"</td><td align="left">Special</td></tr><tr><td align="left">#x09F7</td><td align="left">U+252C</td><td align="left">TOP "T"</td><td align="left">Special</td></tr><tr><td align="left">#x09F8</td><td align="left">U+2502</td><td align="left">VERTICAL BAR</td><td align="left">Special</td></tr><tr><td align="left">#x0AA1</td><td align="left">U+2003</td><td align="left">EM SPACE</td><td align="left">Publish</td></tr><tr><td align="left">#x0AA2</td><td align="left">U+2002</td><td align="left">EN SPACE</td><td align="left">Publish</td></tr><tr><td align="left">#x0AA3</td><td align="left">U+2004</td><td align="left">3/EM SPACE</td><td align="left">Publish</td></tr><tr><td align="left">#x0AA4</td><td align="left">U+2005</td><td align="left">4/EM SPACE</td><td align="left">Publish</td></tr><tr><td align="left">#x0AA5</td><td align="left">U+2007</td><td align="left">DIGIT SPACE</td><td align="left">Publish</td></tr><tr><td align="left">#x0AA6</td><td align="left">U+2008</td><td align="left">PUNCTUATION SPACE</td><td align="left">Publish</td></tr><tr><td align="left">#x0AA7</td><td align="left">U+2009</td><td align="left">THIN SPACE</td><td align="left">Publish</td></tr><tr><td align="left">#x0AA8</td><td align="left">U+200A</td><td align="left">HAIR SPACE</td><td align="left">Publish</td></tr><tr><td align="left">#x0AA9</td><td align="left">U+2014</td><td align="left">EM DASH</td><td align="left">Publish</td></tr><tr><td align="left">#x0AAA</td><td align="left">U+2013</td><td align="left">EN DASH</td><td align="left">Publish</td></tr><tr><td align="left">#x0AAC</td><td align="left">-</td><td align="left">SIGNIFICANT BLANK SYMBOL</td><td align="left">Publish</td></tr><tr><td align="left">#x0AAE</td><td align="left">U+2026</td><td align="left">ELLIPSIS</td><td align="left">Publish</td></tr><tr><td align="left">#x0AAF</td><td align="left">U+2025</td><td align="left">DOUBLE BASELINE DOT</td><td align="left">Publish</td></tr><tr><td align="left">#x0AB0</td><td align="left">U+2153</td><td align="left">VULGAR FRACTION ONE THIRD</td><td align="left">Publish</td></tr><tr><td align="left">#x0AB1</td><td align="left">U+2154</td><td align="left">VULGAR FRACTION TWO THIRDS</td><td align="left">Publish</td></tr><tr><td align="left">#x0AB2</td><td align="left">U+2155</td><td align="left">VULGAR FRACTION ONE FIFTH</td><td align="left">Publish</td></tr><tr><td align="left">#x0AB3</td><td align="left">U+2156</td><td align="left">VULGAR FRACTION TWO FIFTHS</td><td align="left">Publish</td></tr><tr><td align="left">#x0AB4</td><td align="left">U+2157</td><td align="left">VULGAR FRACTION THREE FIFTHS</td><td align="left">Publish</td></tr><tr><td align="left">#x0AB5</td><td align="left">U+2158</td><td align="left">VULGAR FRACTION FOUR FIFTHS</td><td align="left">Publish</td></tr><tr><td align="left">#x0AB6</td><td align="left">U+2159</td><td align="left">VULGAR FRACTION ONE SIXTH</td><td align="left">Publish</td></tr><tr><td align="left">#x0AB7</td><td align="left">U+215A</td><td align="left">VULGAR FRACTION FIVE SIXTHS</td><td align="left">Publish</td></tr><tr><td align="left">#x0AB8</td><td align="left">U+2105</td><td align="left">CARE OF</td><td align="left">Publish</td></tr><tr><td align="left">#x0ABB</td><td align="left">U+2012</td><td align="left">FIGURE DASH</td><td align="left">Publish</td></tr><tr><td align="left">#x0ABC</td><td align="left">-</td><td align="left">LEFT ANGLE BRACKET</td><td align="left">Publish</td></tr><tr><td align="left">#x0ABD</td><td align="left">-</td><td align="left">DECIMAL POINT</td><td align="left">Publish</td></tr><tr><td align="left">#x0ABE</td><td align="left">-</td><td align="left">RIGHT ANGLE BRACKET</td><td align="left">Publish</td></tr><tr><td align="left">#x0ABF</td><td align="left">-</td><td align="left">MARKER</td><td align="left">Publish</td></tr><tr><td align="left">#x0AC3</td><td align="left">U+215B</td><td align="left">VULGAR FRACTION ONE EIGHTH</td><td align="left">Publish</td></tr><tr><td align="left">#x0AC4</td><td align="left">U+215C</td><td align="left">VULGAR FRACTION THREE EIGHTHS</td><td align="left">Publish</td></tr><tr><td align="left">#x0AC5</td><td align="left">U+215D</td><td align="left">VULGAR FRACTION FIVE EIGHTHS</td><td align="left">Publish</td></tr><tr><td align="left">#x0AC6</td><td align="left">U+215E</td><td align="left">VULGAR FRACTION SEVEN EIGHTHS</td><td align="left">Publish</td></tr><tr><td align="left">#x0AC9</td><td align="left">U+2122</td><td align="left">TRADEMARK SIGN</td><td align="left">Publish</td></tr><tr><td align="left">#x0ACA</td><td align="left">-</td><td align="left">SIGNATURE MARK</td><td align="left">Publish</td></tr><tr><td align="left">#x0ACB</td><td align="left">-</td><td align="left">TRADEMARK SIGN IN CIRCLE</td><td align="left">Publish</td></tr><tr><td align="left">#x0ACC</td><td align="left">-</td><td align="left">LEFT OPEN TRIANGLE</td><td align="left">Publish</td></tr><tr><td align="left">#x0ACD</td><td align="left">-</td><td align="left">RIGHT OPEN TRIANGLE</td><td align="left">Publish</td></tr><tr><td align="left">#x0ACE</td><td align="left">-</td><td align="left">EM OPEN CIRCLE</td><td align="left">Publish</td></tr><tr><td align="left">#x0ACF</td><td align="left">-</td><td align="left">EM OPEN RECTANGLE</td><td align="left">Publish</td></tr><tr><td align="left">#x0AD0</td><td align="left">U+2018</td><td align="left">LEFT SINGLE QUOTATION MARK</td><td align="left">Publish</td></tr><tr><td align="left">#x0AD1</td><td align="left">U+2019</td><td align="left">RIGHT SINGLE QUOTATION MARK</td><td align="left">Publish</td></tr><tr><td align="left">#x0AD2</td><td align="left">U+201C</td><td align="left">LEFT DOUBLE QUOTATION MARK</td><td align="left">Publish</td></tr><tr><td align="left">#x0AD3</td><td align="left">U+201D</td><td align="left">RIGHT DOUBLE QUOTATION MARK</td><td align="left">Publish</td></tr><tr><td align="left">#x0AD4</td><td align="left">U+211E</td><td align="left">PRESCRIPTION, TAKE, RECIPE</td><td align="left">Publish</td></tr><tr><td align="left">#x0AD5</td><td align="left">U+2030</td><td align="left">PER MILLE SIGN</td><td align="left">Publish</td></tr><tr><td align="left">#x0AD6</td><td align="left">U+2032</td><td align="left">MINUTES</td><td align="left">Publish</td></tr><tr><td align="left">#x0AD7</td><td align="left">U+2033</td><td align="left">SECONDS</td><td align="left">Publish</td></tr><tr><td align="left">#x0AD9</td><td align="left">U+271D</td><td align="left">LATIN CROSS</td><td align="left">Publish</td></tr><tr><td align="left">#x0ADA</td><td align="left">-</td><td align="left">HEXAGRAM</td><td align="left">Publish</td></tr><tr><td align="left">#x0ADB</td><td align="left">-</td><td align="left">FILLED RECTANGLE BULLET</td><td align="left">Publish</td></tr><tr><td align="left">#x0ADC</td><td align="left">-</td><td align="left">FILLED LEFT TRIANGLE BULLET</td><td align="left">Publish</td></tr><tr><td align="left">#x0ADD</td><td align="left">-</td><td align="left">FILLED RIGHT TRIANGLE BULLET</td><td align="left">Publish</td></tr><tr><td align="left">#x0ADE</td><td align="left">-</td><td align="left">EM FILLED CIRCLE</td><td align="left">Publish</td></tr><tr><td align="left">#x0ADF</td><td align="left">-</td><td align="left">EM FILLED RECTANGLE</td><td align="left">Publish</td></tr><tr><td align="left">#x0AE0</td><td align="left">-</td><td align="left">EN OPEN CIRCLE BULLET</td><td align="left">Publish</td></tr><tr><td align="left">#x0AE1</td><td align="left">-</td><td align="left">EN OPEN SQUARE BULLET</td><td align="left">Publish</td></tr><tr><td align="left">#x0AE2</td><td align="left">-</td><td align="left">OPEN RECTANGULAR BULLET</td><td align="left">Publish</td></tr><tr><td align="left">#x0AE3</td><td align="left">-</td><td align="left">OPEN TRIANGULAR BULLET UP</td><td align="left">Publish</td></tr><tr><td align="left">#x0AE4</td><td align="left">-</td><td align="left">OPEN TRIANGULAR BULLET DOWN</td><td align="left">Publish</td></tr><tr><td align="left">#x0AE5</td><td align="left">-</td><td align="left">OPEN STAR</td><td align="left">Publish</td></tr><tr><td align="left">#x0AE6</td><td align="left">-</td><td align="left">EN FILLED CIRCLE BULLET</td><td align="left">Publish</td></tr><tr><td align="left">#x0AE7</td><td align="left">-</td><td align="left">EN FILLED SQUARE BULLET</td><td align="left">Publish</td></tr><tr><td align="left">#x0AE8</td><td align="left">-</td><td align="left">FILLED TRIANGULAR BULLET UP</td><td align="left">Publish</td></tr><tr><td align="left">#x0AE9</td><td align="left">-</td><td align="left">FILLED TRIANGULAR BULLET DOWN</td><td align="left">Publish</td></tr><tr><td align="left">#x0AEA</td><td align="left">-</td><td align="left">LEFT POINTER</td><td align="left">Publish</td></tr><tr><td align="left">#x0AEB</td><td align="left">-</td><td align="left">RIGHT POINTER</td><td align="left">Publish</td></tr><tr><td align="left">#x0AEC</td><td align="left">U+2663</td><td align="left">CLUB</td><td align="left">Publish</td></tr><tr><td align="left">#x0AED</td><td align="left">U+2666</td><td align="left">DIAMOND</td><td align="left">Publish</td></tr><tr><td align="left">#x0AEE</td><td align="left">U+2665</td><td align="left">HEART</td><td align="left">Publish</td></tr><tr><td align="left">#x0AF0</td><td align="left">U+2720</td><td align="left">MALTESE CROSS</td><td align="left">Publish</td></tr><tr><td align="left">#x0AF1</td><td align="left">U+2020</td><td align="left">DAGGER</td><td align="left">Publish</td></tr><tr><td align="left">#x0AF2</td><td align="left">U+2021</td><td align="left">DOUBLE DAGGER</td><td align="left">Publish</td></tr><tr><td align="left">#x0AF3</td><td align="left">U+2713</td><td align="left">CHECK MARK, TICK</td><td align="left">Publish</td></tr><tr><td align="left">#x0AF4</td><td align="left">U+2717</td><td align="left">BALLOT CROSS</td><td align="left">Publish</td></tr><tr><td align="left">#x0AF5</td><td align="left">U+266F</td><td align="left">MUSICAL SHARP</td><td align="left">Publish</td></tr><tr><td align="left">#x0AF6</td><td align="left">U+266D</td><td align="left">MUSICAL FLAT</td><td align="left">Publish</td></tr><tr><td align="left">#x0AF7</td><td align="left">U+2642</td><td align="left">MALE SYMBOL</td><td align="left">Publish</td></tr><tr><td align="left">#x0AF8</td><td align="left">U+2640</td><td align="left">FEMALE SYMBOL</td><td align="left">Publish</td></tr><tr><td align="left">#x0AF9</td><td align="left">U+260E</td><td align="left">TELEPHONE SYMBOL</td><td align="left">Publish</td></tr><tr><td align="left">#x0AFA</td><td align="left">U+2315</td><td align="left">TELEPHONE RECORDER SYMBOL</td><td align="left">Publish</td></tr><tr><td align="left">#x0AFB</td><td align="left">U+2117</td><td align="left">PHONOGRAPH COPYRIGHT SIGN</td><td align="left">Publish</td></tr><tr><td align="left">#x0AFC</td><td align="left">U+2038</td><td align="left">CARET</td><td align="left">Publish</td></tr><tr><td align="left">#x0AFD</td><td align="left">U+201A</td><td align="left">SINGLE LOW QUOTATION MARK</td><td align="left">Publish</td></tr><tr><td align="left">#x0AFE</td><td align="left">U+201E</td><td align="left">DOUBLE LOW QUOTATION MARK</td><td align="left">Publish</td></tr><tr><td align="left">#x0AFF</td><td align="left">-</td><td align="left">CURSOR</td><td align="left">Publish</td></tr><tr><td align="left">#x0BA3</td><td align="left">-</td><td align="left">LEFT CARET</td><td align="left">APL</td></tr><tr><td align="left">#x0BA6</td><td align="left">-</td><td align="left">RIGHT CARET</td><td align="left">APL</td></tr><tr><td align="left">#x0BA8</td><td align="left">-</td><td align="left">DOWN CARET</td><td align="left">APL</td></tr><tr><td align="left">#x0BA9</td><td align="left">-</td><td align="left">UP CARET</td><td align="left">APL</td></tr><tr><td align="left">#x0BC0</td><td align="left">-</td><td align="left">OVERBAR</td><td align="left">APL</td></tr><tr><td align="left">#x0BC2</td><td align="left">U+22A5</td><td align="left">DOWN TACK</td><td align="left">APL</td></tr><tr><td align="left">#x0BC3</td><td align="left">-</td><td align="left">UP SHOE (CAP)</td><td align="left">APL</td></tr><tr><td align="left">#x0BC4</td><td align="left">U+230A</td><td align="left">DOWN STILE</td><td align="left">APL</td></tr><tr><td align="left">#x0BC6</td><td align="left">-</td><td align="left">UNDERBAR</td><td align="left">APL</td></tr><tr><td align="left">#x0BCA</td><td align="left">U+2218</td><td align="left">JOT</td><td align="left">APL</td></tr><tr><td align="left">#x0BCC</td><td align="left">U+2395</td><td align="left">QUAD</td><td align="left">APL</td></tr><tr><td align="left">#x0BCE</td><td align="left">U+22A4</td><td align="left">UP TACK</td><td align="left">APL</td></tr><tr><td align="left">#x0BCF</td><td align="left">U+25CB</td><td align="left">CIRCLE</td><td align="left">APL</td></tr><tr><td align="left">#x0BD3</td><td align="left">U+2308</td><td align="left">UP STILE</td><td align="left">APL</td></tr><tr><td align="left">#x0BD6</td><td align="left">-</td><td align="left">DOWN SHOE (CUP)</td><td align="left">APL</td></tr><tr><td align="left">#x0BD8</td><td align="left">-</td><td align="left">RIGHT SHOE</td><td align="left">APL</td></tr><tr><td align="left">#x0BDA</td><td align="left">-</td><td align="left">LEFT SHOE</td><td align="left">APL</td></tr><tr><td align="left">#x0BDC</td><td align="left">U+22A2</td><td align="left">LEFT TACK</td><td align="left">APL</td></tr><tr><td align="left">#x0BFC</td><td align="left">U+22A3</td><td align="left">RIGHT TACK</td><td align="left">APL</td></tr><tr><td align="left">#x0CDF</td><td align="left">U+2017</td><td align="left">DOUBLE LOW LINE</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CE0</td><td align="left">U+05D0</td><td align="left">HEBREW LETTER ALEF</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CE1</td><td align="left">U+05D1</td><td align="left">HEBREW LETTER BET</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CE2</td><td align="left">U+05D2</td><td align="left">HEBREW LETTER GIMEL</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CE3</td><td align="left">U+05D3</td><td align="left">HEBREW LETTER DALET</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CE4</td><td align="left">U+05D4</td><td align="left">HEBREW LETTER HE</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CE5</td><td align="left">U+05D5</td><td align="left">HEBREW LETTER VAV</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CE6</td><td align="left">U+05D6</td><td align="left">HEBREW LETTER ZAYIN</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CE7</td><td align="left">U+05D7</td><td align="left">HEBREW LETTER HET</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CE8</td><td align="left">U+05D8</td><td align="left">HEBREW LETTER TET</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CE9</td><td align="left">U+05D9</td><td align="left">HEBREW LETTER YOD</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CEA</td><td align="left">U+05DA</td><td align="left">HEBREW LETTER FINAL KAF</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CEB</td><td align="left">U+05DB</td><td align="left">HEBREW LETTER KAF</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CEC</td><td align="left">U+05DC</td><td align="left">HEBREW LETTER LAMED</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CED</td><td align="left">U+05DD</td><td align="left">HEBREW LETTER FINAL MEM</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CEE</td><td align="left">U+05DE</td><td align="left">HEBREW LETTER MEM</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CEF</td><td align="left">U+05DF</td><td align="left">HEBREW LETTER FINAL NUN</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CF0</td><td align="left">U+05E0</td><td align="left">HEBREW LETTER NUN</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CF1</td><td align="left">U+05E1</td><td align="left">HEBREW LETTER SAMEKH</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CF2</td><td align="left">U+05E2</td><td align="left">HEBREW LETTER AYIN</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CF3</td><td align="left">U+05E3</td><td align="left">HEBREW LETTER FINAL PE</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CF4</td><td align="left">U+05E4</td><td align="left">HEBREW LETTER PE</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CF5</td><td align="left">U+05E5</td><td align="left">HEBREW LETTER FINAL TSADI</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CF6</td><td align="left">U+05E6</td><td align="left">HEBREW LETTER TSADI</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CF7</td><td align="left">U+05E7</td><td align="left">HEBREW LETTER QOF</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CF8</td><td align="left">U+05E8</td><td align="left">HEBREW LETTER RESH</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CF9</td><td align="left">U+05E9</td><td align="left">HEBREW LETTER SHIN</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0CFA</td><td align="left">U+05EA</td><td align="left">HEBREW LETTER TAV</td><td align="left">Hebrew</td></tr><tr><td align="left">#x0DA1</td><td align="left">U+0E01</td><td align="left">THAI CHARACTER KO KAI</td><td align="left">Thai</td></tr><tr><td align="left">#x0DA2</td><td align="left">U+0E02</td><td align="left">THAI CHARACTER KHO KHAI</td><td align="left">Thai</td></tr><tr><td align="left">#x0DA3</td><td align="left">U+0E03</td><td align="left">THAI CHARACTER KHO KHUAT</td><td align="left">Thai</td></tr><tr><td align="left">#x0DA4</td><td align="left">U+0E04</td><td align="left">THAI CHARACTER KHO KHWAI</td><td align="left">Thai</td></tr><tr><td align="left">#x0DA5</td><td align="left">U+0E05</td><td align="left">THAI CHARACTER KHO KHON</td><td align="left">Thai</td></tr><tr><td align="left">#x0DA6</td><td align="left">U+0E06</td><td align="left">THAI CHARACTER KHO RAKHANG</td><td align="left">Thai</td></tr><tr><td align="left">#x0DA7</td><td align="left">U+0E07</td><td align="left">THAI CHARACTER NGO NGU</td><td align="left">Thai</td></tr><tr><td align="left">#x0DA8</td><td align="left">U+0E08</td><td align="left">THAI CHARACTER CHO CHAN</td><td align="left">Thai</td></tr><tr><td align="left">#x0DA9</td><td align="left">U+0E09</td><td align="left">THAI CHARACTER CHO CHING</td><td align="left">Thai</td></tr><tr><td align="left">#x0DAA</td><td align="left">U+0E0A</td><td align="left">THAI CHARACTER CHO CHANG</td><td align="left">Thai</td></tr><tr><td align="left">#x0DAB</td><td align="left">U+0E0B</td><td align="left">THAI CHARACTER SO SO</td><td align="left">Thai</td></tr><tr><td align="left">#x0DAC</td><td align="left">U+0E0C</td><td align="left">THAI CHARACTER CHO CHOE</td><td align="left">Thai</td></tr><tr><td align="left">#x0DAD</td><td align="left">U+0E0D</td><td align="left">THAI CHARACTER YO YING</td><td align="left">Thai</td></tr><tr><td align="left">#x0DAE</td><td align="left">U+0E0E</td><td align="left">THAI CHARACTER DO CHADA</td><td align="left">Thai</td></tr><tr><td align="left">#x0DAF</td><td align="left">U+0E0F</td><td align="left">THAI CHARACTER TO PATAK</td><td align="left">Thai</td></tr><tr><td align="left">#x0DB0</td><td align="left">U+0E10</td><td align="left">THAI CHARACTER THO THAN</td><td align="left">Thai</td></tr><tr><td align="left">#x0DB1</td><td align="left">U+0E11</td><td align="left">THAI CHARACTER THO NANGMONTHO</td><td align="left">Thai</td></tr><tr><td align="left">#x0DB2</td><td align="left">U+0E12</td><td align="left">THAI CHARACTER THO PHUTHAO</td><td align="left">Thai</td></tr><tr><td align="left">#x0DB3</td><td align="left">U+0E13</td><td align="left">THAI CHARACTER NO NEN</td><td align="left">Thai</td></tr><tr><td align="left">#x0DB4</td><td align="left">U+0E14</td><td align="left">THAI CHARACTER DO DEK</td><td align="left">Thai</td></tr><tr><td align="left">#x0DB5</td><td align="left">U+0E15</td><td align="left">THAI CHARACTER TO TAO</td><td align="left">Thai</td></tr><tr><td align="left">#x0DB6</td><td align="left">U+0E16</td><td align="left">THAI CHARACTER THO THUNG</td><td align="left">Thai</td></tr><tr><td align="left">#x0DB7</td><td align="left">U+0E17</td><td align="left">THAI CHARACTER THO THAHAN</td><td align="left">Thai</td></tr><tr><td align="left">#x0DB8</td><td align="left">U+0E18</td><td align="left">THAI CHARACTER THO THONG</td><td align="left">Thai</td></tr><tr><td align="left">#x0DB9</td><td align="left">U+0E19</td><td align="left">THAI CHARACTER NO NU</td><td align="left">Thai</td></tr><tr><td align="left">#x0DBA</td><td align="left">U+0E1A</td><td align="left">THAI CHARACTER BO BAIMAI</td><td align="left">Thai</td></tr><tr><td align="left">#x0DBB</td><td align="left">U+0E1B</td><td align="left">THAI CHARACTER PO PLA</td><td align="left">Thai</td></tr><tr><td align="left">#x0DBC</td><td align="left">U+0E1C</td><td align="left">THAI CHARACTER PHO PHUNG</td><td align="left">Thai</td></tr><tr><td align="left">#x0DBD</td><td align="left">U+0E1D</td><td align="left">THAI CHARACTER FO FA</td><td align="left">Thai</td></tr><tr><td align="left">#x0DBE</td><td align="left">U+0E1E</td><td align="left">THAI CHARACTER PHO PHAN</td><td align="left">Thai</td></tr><tr><td align="left">#x0DBF</td><td align="left">U+0E1F</td><td align="left">THAI CHARACTER FO FAN</td><td align="left">Thai</td></tr><tr><td align="left">#x0DC0</td><td align="left">U+0E20</td><td align="left">THAI CHARACTER PHO SAMPHAO</td><td align="left">Thai</td></tr><tr><td align="left">#x0DC1</td><td align="left">U+0E21</td><td align="left">THAI CHARACTER MO MA</td><td align="left">Thai</td></tr><tr><td align="left">#x0DC2</td><td align="left">U+0E22</td><td align="left">THAI CHARACTER YO YAK</td><td align="left">Thai</td></tr><tr><td align="left">#x0DC3</td><td align="left">U+0E23</td><td align="left">THAI CHARACTER RO RUA</td><td align="left">Thai</td></tr><tr><td align="left">#x0DC4</td><td align="left">U+0E24</td><td align="left">THAI CHARACTER RU</td><td align="left">Thai</td></tr><tr><td align="left">#x0DC5</td><td align="left">U+0E25</td><td align="left">THAI CHARACTER LO LING</td><td align="left">Thai</td></tr><tr><td align="left">#x0DC6</td><td align="left">U+0E26</td><td align="left">THAI CHARACTER LU</td><td align="left">Thai</td></tr><tr><td align="left">#x0DC7</td><td align="left">U+0E27</td><td align="left">THAI CHARACTER WO WAEN</td><td align="left">Thai</td></tr><tr><td align="left">#x0DC8</td><td align="left">U+0E28</td><td align="left">THAI CHARACTER SO SALA</td><td align="left">Thai</td></tr><tr><td align="left">#x0DC9</td><td align="left">U+0E29</td><td align="left">THAI CHARACTER SO RUSI</td><td align="left">Thai</td></tr><tr><td align="left">#x0DCA</td><td align="left">U+0E2A</td><td align="left">THAI CHARACTER SO SUA</td><td align="left">Thai</td></tr><tr><td align="left">#x0DCB</td><td align="left">U+0E2B</td><td align="left">THAI CHARACTER HO HIP</td><td align="left">Thai</td></tr><tr><td align="left">#x0DCC</td><td align="left">U+0E2C</td><td align="left">THAI CHARACTER LO CHULA</td><td align="left">Thai</td></tr><tr><td align="left">#x0DCD</td><td align="left">U+0E2D</td><td align="left">THAI CHARACTER O ANG</td><td align="left">Thai</td></tr><tr><td align="left">#x0DCE</td><td align="left">U+0E2E</td><td align="left">THAI CHARACTER HO NOKHUK</td><td align="left">Thai</td></tr><tr><td align="left">#x0DCF</td><td align="left">U+0E2F</td><td align="left">THAI CHARACTER PAIYANNOI</td><td align="left">Thai</td></tr><tr><td align="left">#x0DD0</td><td align="left">U+0E30</td><td align="left">THAI CHARACTER SARA A</td><td align="left">Thai</td></tr><tr><td align="left">#x0DD1</td><td align="left">U+0E31</td><td align="left">THAI CHARACTER MAI HAN-AKAT</td><td align="left">Thai</td></tr><tr><td align="left">#x0DD2</td><td align="left">U+0E32</td><td align="left">THAI CHARACTER SARA AA</td><td align="left">Thai</td></tr><tr><td align="left">#x0DD3</td><td align="left">U+0E33</td><td align="left">THAI CHARACTER SARA AM</td><td align="left">Thai</td></tr><tr><td align="left">#x0DD4</td><td align="left">U+0E34</td><td align="left">THAI CHARACTER SARA I</td><td align="left">Thai</td></tr><tr><td align="left">#x0DD5</td><td align="left">U+0E35</td><td align="left">THAI CHARACTER SARA II</td><td align="left">Thai</td></tr><tr><td align="left">#x0DD6</td><td align="left">U+0E36</td><td align="left">THAI CHARACTER SARA UE</td><td align="left">Thai</td></tr><tr><td align="left">#x0DD7</td><td align="left">U+0E37</td><td align="left">THAI CHARACTER SARA UEE</td><td align="left">Thai</td></tr><tr><td align="left">#x0DD8</td><td align="left">U+0E38</td><td align="left">THAI CHARACTER SARA U</td><td align="left">Thai</td></tr><tr><td align="left">#x0DD9</td><td align="left">U+0E39</td><td align="left">THAI CHARACTER SARA UU</td><td align="left">Thai</td></tr><tr><td align="left">#x0DDA</td><td align="left">U+0E3A</td><td align="left">THAI CHARACTER PHINTHU</td><td align="left">Thai</td></tr><tr><td align="left">#x0DDF</td><td align="left">U+0E3F</td><td align="left">THAI CURRENCY SYMBOL BAHT</td><td align="left">Thai</td></tr><tr><td align="left">#x0DE0</td><td align="left">U+0E40</td><td align="left">THAI CHARACTER SARA E</td><td align="left">Thai</td></tr><tr><td align="left">#x0DE1</td><td align="left">U+0E41</td><td align="left">THAI CHARACTER SARA AE</td><td align="left">Thai</td></tr><tr><td align="left">#x0DE2</td><td align="left">U+0E42</td><td align="left">THAI CHARACTER SARA O</td><td align="left">Thai</td></tr><tr><td align="left">#x0DE3</td><td align="left">U+0E43</td><td align="left">THAI CHARACTER SARA AI MAIMUAN</td><td align="left">Thai</td></tr><tr><td align="left">#x0DE4</td><td align="left">U+0E44</td><td align="left">THAI CHARACTER SARA AI MAIMALAI</td><td align="left">Thai</td></tr><tr><td align="left">#x0DE5</td><td align="left">U+0E45</td><td align="left">THAI CHARACTER LAKKHANGYAO</td><td align="left">Thai</td></tr><tr><td align="left">#x0DE6</td><td align="left">U+0E46</td><td align="left">THAI CHARACTER MAIYAMOK</td><td align="left">Thai</td></tr><tr><td align="left">#x0DE7</td><td align="left">U+0E47</td><td align="left">THAI CHARACTER MAITAIKHU</td><td align="left">Thai</td></tr><tr><td align="left">#x0DE8</td><td align="left">U+0E48</td><td align="left">THAI CHARACTER MAI EK</td><td align="left">Thai</td></tr><tr><td align="left">#x0DE9</td><td align="left">U+0E49</td><td align="left">THAI CHARACTER MAI THO</td><td align="left">Thai</td></tr><tr><td align="left">#x0DEA</td><td align="left">U+0E4A</td><td align="left">THAI CHARACTER MAI TRI</td><td align="left">Thai</td></tr><tr><td align="left">#x0DEB</td><td align="left">U+0E4B</td><td align="left">THAI CHARACTER MAI CHATTAWA</td><td align="left">Thai</td></tr><tr><td align="left">#x0DEC</td><td align="left">U+0E4C</td><td align="left">THAI CHARACTER THANTHAKHAT</td><td align="left">Thai</td></tr><tr><td align="left">#x0DED</td><td align="left">U+0E4D</td><td align="left">THAI CHARACTER NIKHAHIT</td><td align="left">Thai</td></tr><tr><td align="left">#x0DF0</td><td align="left">U+0E50</td><td align="left">THAI DIGIT ZERO</td><td align="left">Thai</td></tr><tr><td align="left">#x0DF1</td><td align="left">U+0E51</td><td align="left">THAI DIGIT ONE</td><td align="left">Thai</td></tr><tr><td align="left">#x0DF2</td><td align="left">U+0E52</td><td align="left">THAI DIGIT TWO</td><td align="left">Thai</td></tr><tr><td align="left">#x0DF3</td><td align="left">U+0E53</td><td align="left">THAI DIGIT THREE</td><td align="left">Thai</td></tr><tr><td align="left">#x0DF4</td><td align="left">U+0E54</td><td align="left">THAI DIGIT FOUR</td><td align="left">Thai</td></tr><tr><td align="left">#x0DF5</td><td align="left">U+0E55</td><td align="left">THAI DIGIT FIVE</td><td align="left">Thai</td></tr><tr><td align="left">#x0DF6</td><td align="left">U+0E56</td><td align="left">THAI DIGIT SIX</td><td align="left">Thai</td></tr><tr><td align="left">#x0DF7</td><td align="left">U+0E57</td><td align="left">THAI DIGIT SEVEN</td><td align="left">Thai</td></tr><tr><td align="left">#x0DF8</td><td align="left">U+0E58</td><td align="left">THAI DIGIT EIGHT</td><td align="left">Thai</td></tr><tr><td align="left">#x0DF9</td><td align="left">U+0E59</td><td align="left">THAI DIGIT NINE</td><td align="left">Thai</td></tr><tr><td align="left">#x0EA1</td><td align="left">-</td><td align="left">HANGUL KIYEOG</td><td align="left">Korean</td></tr><tr><td align="left">#x0EA2</td><td align="left">-</td><td align="left">HANGUL SSANG KIYEOG</td><td align="left">Korean</td></tr><tr><td align="left">#x0EA3</td><td align="left">-</td><td align="left">HANGUL KIYEOG SIOS</td><td align="left">Korean</td></tr><tr><td align="left">#x0EA4</td><td align="left">-</td><td align="left">HANGUL NIEUN</td><td align="left">Korean</td></tr><tr><td align="left">#x0EA5</td><td align="left">-</td><td align="left">HANGUL NIEUN JIEUJ</td><td align="left">Korean</td></tr><tr><td align="left">#x0EA6</td><td align="left">-</td><td align="left">HANGUL NIEUN HIEUH</td><td align="left">Korean</td></tr><tr><td align="left">#x0EA7</td><td align="left">-</td><td align="left">HANGUL DIKEUD</td><td align="left">Korean</td></tr><tr><td align="left">#x0EA8</td><td align="left">-</td><td align="left">HANGUL SSANG DIKEUD</td><td align="left">Korean</td></tr><tr><td align="left">#x0EA9</td><td align="left">-</td><td align="left">HANGUL RIEUL</td><td align="left">Korean</td></tr><tr><td align="left">#x0EAA</td><td align="left">-</td><td align="left">HANGUL RIEUL KIYEOG</td><td align="left">Korean</td></tr><tr><td align="left">#x0EAB</td><td align="left">-</td><td align="left">HANGUL RIEUL MIEUM</td><td align="left">Korean</td></tr><tr><td align="left">#x0EAC</td><td align="left">-</td><td align="left">HANGUL RIEUL PIEUB</td><td align="left">Korean</td></tr><tr><td align="left">#x0EAD</td><td align="left">-</td><td align="left">HANGUL RIEUL SIOS</td><td align="left">Korean</td></tr><tr><td align="left">#x0EAE</td><td align="left">-</td><td align="left">HANGUL RIEUL TIEUT</td><td align="left">Korean</td></tr><tr><td align="left">#x0EAF</td><td align="left">-</td><td align="left">HANGUL RIEUL PHIEUF</td><td align="left">Korean</td></tr><tr><td align="left">#x0EB0</td><td align="left">-</td><td align="left">HANGUL RIEUL HIEUH</td><td align="left">Korean</td></tr><tr><td align="left">#x0EB1</td><td align="left">-</td><td align="left">HANGUL MIEUM</td><td align="left">Korean</td></tr><tr><td align="left">#x0EB2</td><td align="left">-</td><td align="left">HANGUL PIEUB</td><td align="left">Korean</td></tr><tr><td align="left">#x0EB3</td><td align="left">-</td><td align="left">HANGUL SSANG PIEUB</td><td align="left">Korean</td></tr><tr><td align="left">#x0EB4</td><td align="left">-</td><td align="left">HANGUL PIEUB SIOS</td><td align="left">Korean</td></tr><tr><td align="left">#x0EB5</td><td align="left">-</td><td align="left">HANGUL SIOS</td><td align="left">Korean</td></tr><tr><td align="left">#x0EB6</td><td align="left">-</td><td align="left">HANGUL SSANG SIOS</td><td align="left">Korean</td></tr><tr><td align="left">#x0EB7</td><td align="left">-</td><td align="left">HANGUL IEUNG</td><td align="left">Korean</td></tr><tr><td align="left">#x0EB8</td><td align="left">-</td><td align="left">HANGUL JIEUJ</td><td align="left">Korean</td></tr><tr><td align="left">#x0EB9</td><td align="left">-</td><td align="left">HANGUL SSANG JIEUJ</td><td align="left">Korean</td></tr><tr><td align="left">#x0EBA</td><td align="left">-</td><td align="left">HANGUL CIEUC</td><td align="left">Korean</td></tr><tr><td align="left">#x0EBB</td><td align="left">-</td><td align="left">HANGUL KHIEUQ</td><td align="left">Korean</td></tr><tr><td align="left">#x0EBC</td><td align="left">-</td><td align="left">HANGUL TIEUT</td><td align="left">Korean</td></tr><tr><td align="left">#x0EBD</td><td align="left">-</td><td align="left">HANGUL PHIEUF</td><td align="left">Korean</td></tr><tr><td align="left">#x0EBE</td><td align="left">-</td><td align="left">HANGUL HIEUH</td><td align="left">Korean</td></tr><tr><td align="left">#x0EBF</td><td align="left">-</td><td align="left">HANGUL A</td><td align="left">Korean</td></tr><tr><td align="left">#x0EC0</td><td align="left">-</td><td align="left">HANGUL AE</td><td align="left">Korean</td></tr><tr><td align="left">#x0EC1</td><td align="left">-</td><td align="left">HANGUL YA</td><td align="left">Korean</td></tr><tr><td align="left">#x0EC2</td><td align="left">-</td><td align="left">HANGUL YAE</td><td align="left">Korean</td></tr><tr><td align="left">#x0EC3</td><td align="left">-</td><td align="left">HANGUL EO</td><td align="left">Korean</td></tr><tr><td align="left">#x0EC4</td><td align="left">-</td><td align="left">HANGUL E</td><td align="left">Korean</td></tr><tr><td align="left">#x0EC5</td><td align="left">-</td><td align="left">HANGUL YEO</td><td align="left">Korean</td></tr><tr><td align="left">#x0EC6</td><td align="left">-</td><td align="left">HANGUL YE</td><td align="left">Korean</td></tr><tr><td align="left">#x0EC7</td><td align="left">-</td><td align="left">HANGUL O</td><td align="left">Korean</td></tr><tr><td align="left">#x0EC8</td><td align="left">-</td><td align="left">HANGUL WA</td><td align="left">Korean</td></tr><tr><td align="left">#x0EC9</td><td align="left">-</td><td align="left">HANGUL WAE</td><td align="left">Korean</td></tr><tr><td align="left">#x0ECA</td><td align="left">-</td><td align="left">HANGUL OE</td><td align="left">Korean</td></tr><tr><td align="left">#x0ECB</td><td align="left">-</td><td align="left">HANGUL YO</td><td align="left">Korean</td></tr><tr><td align="left">#x0ECC</td><td align="left">-</td><td align="left">HANGUL U</td><td align="left">Korean</td></tr><tr><td align="left">#x0ECD</td><td align="left">-</td><td align="left">HANGUL WEO</td><td align="left">Korean</td></tr><tr><td align="left">#x0ECE</td><td align="left">-</td><td align="left">HANGUL WE</td><td align="left">Korean</td></tr><tr><td align="left">#x0ECF</td><td align="left">-</td><td align="left">HANGUL WI</td><td align="left">Korean</td></tr><tr><td align="left">#x0ED0</td><td align="left">-</td><td align="left">HANGUL YU</td><td align="left">Korean</td></tr><tr><td align="left">#x0ED1</td><td align="left">-</td><td align="left">HANGUL EU</td><td align="left">Korean</td></tr><tr><td align="left">#x0ED2</td><td align="left">-</td><td align="left">HANGUL YI</td><td align="left">Korean</td></tr><tr><td align="left">#x0ED3</td><td align="left">-</td><td align="left">HANGUL I</td><td align="left">Korean</td></tr><tr><td align="left">#x0ED4</td><td align="left">-</td><td align="left">HANGUL JONG SEONG KIYEOG</td><td align="left">Korean</td></tr><tr><td align="left">#x0ED5</td><td align="left">-</td><td align="left">HANGUL JONG SEONG SSANG KIYEOG</td><td align="left">Korean</td></tr><tr><td align="left">#x0ED6</td><td align="left">-</td><td align="left">HANGUL JONG SEONG KIYEOG SIOS</td><td align="left">Korean</td></tr><tr><td align="left">#x0ED7</td><td align="left">-</td><td align="left">HANGUL JONG SEONG NIEUN</td><td align="left">Korean</td></tr><tr><td align="left">#x0ED8</td><td align="left">-</td><td align="left">HANGUL JONG SEONG NIEUN JIEUJ</td><td align="left">Korean</td></tr><tr><td align="left">#x0ED9</td><td align="left">-</td><td align="left">HANGUL JONG SEONG NIEUN HIEUH</td><td align="left">Korean</td></tr><tr><td align="left">#x0EDA</td><td align="left">-</td><td align="left">HANGUL JONG SEONG DIKEUD</td><td align="left">Korean</td></tr><tr><td align="left">#x0EDB</td><td align="left">-</td><td align="left">HANGUL JONG SEONG RIEUL</td><td align="left">Korean</td></tr><tr><td align="left">#x0EDC</td><td align="left">-</td><td align="left">HANGUL JONG SEONG RIEUL KIYEOG</td><td align="left">Korean</td></tr><tr><td align="left">#x0EDD</td><td align="left">-</td><td align="left">HANGUL JONG SEONG RIEUL MIEUM</td><td align="left">Korean</td></tr><tr><td align="left">#x0EDE</td><td align="left">-</td><td align="left">HANGUL JONG SEONG RIEUL PIEUB</td><td align="left">Korean</td></tr><tr><td align="left">#x0EDF</td><td align="left">-</td><td align="left">HANGUL JONG SEONG RIEUL SIOS</td><td align="left">Korean</td></tr><tr><td align="left">#x0EE0</td><td align="left">-</td><td align="left">HANGUL JONG SEONG RIEUL TIEUT</td><td align="left">Korean</td></tr><tr><td align="left">#x0EE1</td><td align="left">-</td><td align="left">HANGUL JONG SEONG RIEUL PHIEUF</td><td align="left">Korean</td></tr><tr><td align="left">#x0EE2</td><td align="left">-</td><td align="left">HANGUL JONG SEONG RIEUL HIEUH</td><td align="left">Korean</td></tr><tr><td align="left">#x0EE3</td><td align="left">-</td><td align="left">HANGUL JONG SEONG MIEUM</td><td align="left">Korean</td></tr><tr><td align="left">#x0EE4</td><td align="left">-</td><td align="left">HANGUL JONG SEONG PIEUB</td><td align="left">Korean</td></tr><tr><td align="left">#x0EE5</td><td align="left">-</td><td align="left">HANGUL JONG SEONG PIEUB SIOS</td><td align="left">Korean</td></tr><tr><td align="left">#x0EE6</td><td align="left">-</td><td align="left">HANGUL JONG SEONG SIOS</td><td align="left">Korean</td></tr><tr><td align="left">#x0EE7</td><td align="left">-</td><td align="left">HANGUL JONG SEONG SSANG SIOS</td><td align="left">Korean</td></tr><tr><td align="left">#x0EE8</td><td align="left">-</td><td align="left">HANGUL JONG SEONG IEUNG</td><td align="left">Korean</td></tr><tr><td align="left">#x0EE9</td><td align="left">-</td><td align="left">HANGUL JONG SEONG JIEUJ</td><td align="left">Korean</td></tr><tr><td align="left">#x0EEA</td><td align="left">-</td><td align="left">HANGUL JONG SEONG CIEUC</td><td align="left">Korean</td></tr><tr><td align="left">#x0EEB</td><td align="left">-</td><td align="left">HANGUL JONG SEONG KHIEUQ</td><td align="left">Korean</td></tr><tr><td align="left">#x0EEC</td><td align="left">-</td><td align="left">HANGUL JONG SEONG TIEUT</td><td align="left">Korean</td></tr><tr><td align="left">#x0EED</td><td align="left">-</td><td align="left">HANGUL JONG SEONG PHIEUF</td><td align="left">Korean</td></tr><tr><td align="left">#x0EEE</td><td align="left">-</td><td align="left">HANGUL JONG SEONG HIEUH</td><td align="left">Korean</td></tr><tr><td align="left">#x0EEF</td><td align="left">-</td><td align="left">HANGUL RIEUL YEORIN HIEUH</td><td align="left">Korean</td></tr><tr><td align="left">#x0EF0</td><td align="left">-</td><td align="left">HANGUL SUNKYEONGEUM MIEUM</td><td align="left">Korean</td></tr><tr><td align="left">#x0EF1</td><td align="left">-</td><td align="left">HANGUL SUNKYEONGEUM PIEUB</td><td align="left">Korean</td></tr><tr><td align="left">#x0EF2</td><td align="left">-</td><td align="left">HANGUL PAN SIOS</td><td align="left">Korean</td></tr><tr><td align="left">#x0EF3</td><td align="left">-</td><td align="left">HANGUL KKOGJI DALRIN IEUNG</td><td align="left">Korean</td></tr><tr><td align="left">#x0EF4</td><td align="left">-</td><td align="left">HANGUL SUNKYEONGEUM PHIEUF</td><td align="left">Korean</td></tr><tr><td align="left">#x0EF5</td><td align="left">-</td><td align="left">HANGUL YEORIN HIEUH</td><td align="left">Korean</td></tr><tr><td align="left">#x0EF6</td><td align="left">-</td><td align="left">HANGUL ARAE A</td><td align="left">Korean</td></tr><tr><td align="left">#x0EF7</td><td align="left">-</td><td align="left">HANGUL ARAE AE</td><td align="left">Korean</td></tr><tr><td align="left">#x0EF8</td><td align="left">-</td><td align="left">HANGUL JONG SEONG PAN SIOS</td><td align="left">Korean</td></tr><tr><td align="left">#x0EF9</td><td align="left">-</td><td align="left">HANGUL JONG SEONG KKOGJI DALRIN IEUNG</td><td align="left">Korean</td></tr><tr><td align="left">#x0EFA</td><td align="left">-</td><td align="left">HANGUL JONG SEONG YEORIN HIEUH</td><td align="left">Korean</td></tr><tr><td align="left">#x0EFF</td><td align="left">-</td><td align="left">KOREAN WON</td><td align="left">Korean</td></tr><tr><td align="left">#x13BC</td><td align="left">U+0152</td><td align="left">LATIN CAPITAL LIGATURE OE</td><td align="left">Latin-9</td></tr><tr><td align="left">#x13BD</td><td align="left">U+0153</td><td align="left">LATIN SMALL LIGATURE OE</td><td align="left">Latin-9</td></tr><tr><td align="left">#x13BE</td><td align="left">U+0178</td><td align="left">LATIN CAPITAL LETTER Y WITH DIAERESIS</td><td align="left">Latin-9</td></tr><tr><td align="left">#x20A0</td><td align="left">-</td><td align="left">CURRENCY ECU SIGN</td><td align="left">Currency</td></tr><tr><td align="left">#x20A1</td><td align="left">-</td><td align="left">CURRENCY COLON SIGN</td><td align="left">Currency</td></tr><tr><td align="left">#x20A2</td><td align="left">-</td><td align="left">CURRENCY CRUZEIRO SIGN</td><td align="left">Currency</td></tr><tr><td align="left">#x20A3</td><td align="left">-</td><td align="left">CURRENCY FRENCH FRANC SIGN</td><td align="left">Currency</td></tr><tr><td align="left">#x20A4</td><td align="left">-</td><td align="left">CURRENCY LIRA SIGN</td><td align="left">Currency</td></tr><tr><td align="left">#x20A5</td><td align="left">-</td><td align="left">CURRENCY MILL SIGN</td><td align="left">Currency</td></tr><tr><td align="left">#x20A6</td><td align="left">-</td><td align="left">CURRENCY NAIRA SIGN</td><td align="left">Currency</td></tr><tr><td align="left">#x20A7</td><td align="left">-</td><td align="left">CURRENCY PESETA SIGN</td><td align="left">Currency</td></tr><tr><td align="left">#x20A8</td><td align="left">-</td><td align="left">CURRENCY RUPEE SIGN</td><td align="left">Currency</td></tr><tr><td align="left">#x20A9</td><td align="left">-</td><td align="left">CURRENCY WON SIGN</td><td align="left">Currency</td></tr><tr><td align="left">#x20AA</td><td align="left">-</td><td align="left">CURRENCY NEW SHEQEL SIGN</td><td align="left">Currency</td></tr><tr><td align="left">#x20AB</td><td align="left">-</td><td align="left">CURRENCY DONG SIGN</td><td align="left">Currency</td></tr><tr><td align="left">#x20AC</td><td align="left">U+20AC</td><td align="left">CURRENCY EURO SIGN</td><td align="left">Currency</td></tr></tbody></table></div></div></div><div class="appendix"><div class="titlepage"><div><div><h1 class="title"><a id="protocol_encoding"></a>Appendix B. Protocol Encoding</h1></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="sect1"><a href="#Syntactic_Conventions_b">Syntactic Conventions</a></span></dt><dt><span class="sect1"><a href="#Encoding::Common_Types">Common Types</a></span></dt><dt><span class="sect1"><a href="#Encoding::Errors">Errors</a></span></dt><dt><span class="sect1"><a href="#Encoding::Keyboards">Keyboards</a></span></dt><dt><span class="sect1"><a href="#Encoding::Pointers">Pointers</a></span></dt><dt><span class="sect1"><a href="#Encoding::Predefined_Atoms">Predefined Atoms</a></span></dt><dt><span class="sect1"><a href="#Encoding::Connection_Setup">Connection Setup</a></span></dt><dt><span class="sect1"><a href="#Encoding::Requests">Requests</a></span></dt><dt><span class="sect1"><a href="#Encoding::Events">Events</a></span></dt></dl></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Syntactic_Conventions_b"></a>Syntactic Conventions</h2></div></div></div><p>
All numbers are in decimal,
unless prefixed with #x, in which case they are in hexadecimal (base 16).
</p><p>
The general syntax used to describe requests, replies, errors, events, and
compound types is:
</p><pre class="literallayout">
   <span class="bold"><strong>NameofThing</strong></span>
   encode-form
   ...
   encode-form
</pre><p>
Each encode-form describes a single component.
</p><p>
For components described in the protocol as:
</p><pre class="literallayout">
   name: TYPE
</pre><p>
the encode-form is:
</p><pre class="literallayout">
   N     TYPE     name
</pre><p>
N is the number of bytes occupied in the data stream,
and TYPE is the interpretation of those bytes.
For example,
</p><pre class="literallayout">
   depth: CARD8
</pre><p>
becomes:
</p><pre class="literallayout">
   1     CARD8     depth
</pre><p>
For components with a static numeric value the encode-form is:
</p><pre class="literallayout">
   N     value     name
</pre><p>
The value is always interpreted as an N-byte unsigned integer.
For example,
the first two bytes of a
<span class="bold"><strong>Window</strong></span>
error are always zero (indicating an
error in general) and three (indicating the
<span class="bold"><strong>Window</strong></span>
error in particular):
</p><pre class="literallayout">
   1      0      Error
   1      3      code
</pre><p>
For components described in the protocol as:
</p><p>
name:
{ <span class="bold"><strong>Name1</strong></span>,...,
<span class="bold"><strong>NameI</strong></span>}
</p><p>
the encode-form is:
</p><pre class="literallayout">
   N          name
        value1 Name1
        ...
        valueI NameI
</pre><p>
The value is always interpreted as an N-byte unsigned integer.
Note that the size of N is sometimes larger than that strictly required
to encode the values.
For example:
</p><p>
class:
{ <span class="bold"><strong>InputOutput</strong></span>,
<span class="bold"><strong>InputOnly</strong></span>,
<span class="bold"><strong>CopyFromParent</strong></span> }
</p><p>
becomes:
</p><pre class="literallayout">
2               class
     0     CopyFromParent
     1     InputOutput
     2     InputOnly
</pre><p>
For components described in the protocol as:
</p><p>
NAME: TYPE or
<span class="bold"><strong>Alternative1 ...or</strong></span>
<span class="bold"><strong>AlternativeI</strong></span>
</p><p>
the encode-form is:
</p><pre class="literallayout">
N     TYPE               NAME
     value1     Alternative1
     ...
     valueI     AlternativeI
</pre><p>
The alternative values are guaranteed not to conflict with the encoding
of TYPE.
For example:
</p><p>
destination: WINDOW or
<span class="bold"><strong>PointerWindow</strong></span>
or
<span class="bold"><strong>InputFocus</strong></span>
</p><p>
becomes:
</p><pre class="literallayout">
4     WINDOW          destination
     0     PointerWindow
     1     InputFocus
</pre><p>
For components described in the protocol as:
</p><pre class="literallayout">
   value-mask: BITMASK
</pre><p>
the encode-form is:
</p><pre class="literallayout">
N     BITMASK               value-mask
     mask1     mask-name1
     ...
     maskI     mask-nameI
</pre><p>
The individual bits in the mask are specified and named,
and N is 2 or 4.
The most-significant bit in a BITMASK is reserved for use in defining
chained (multiword) bitmasks, as extensions augment existing core requests.
The precise interpretation of this bit is not yet defined here,
although a probable mechanism is that a 1-bit indicates that another N bytes
of bitmask follows, with bits within the overall mask still interpreted
from least-significant to most-significant with an N-byte unit,
with N-byte units
interpreted in stream order, and with the overall mask being byte-swapped
in individual N-byte units.
</p><p>
For LISTofVALUE encodings, the request is followed by a section of the form:
</p><pre class="literallayout">
   VALUEs
   encode-form
   ...
   encode-form
</pre><p>
listing an encode-form for each VALUE.
The NAME in each encode-form keys to the corresponding BITMASK bit.
The encoding of a VALUE always occupies four bytes,
but the number of bytes specified in the encoding-form indicates how
many of the least-significant bytes are actually used;
the remaining bytes are unused and their values do not matter.
</p><p>
In various cases, the number of bytes occupied by a component will be
specified
by a lowercase single-letter variable name instead of a specific numeric
value, and often some other component will have its value specified as a
simple numeric expression involving these variables.
Components specified with such expressions are always interpreted
as unsigned integers.
The scope of such variables is always just the enclosing request, reply,
error, event, or compound type structure.
For example:
</p><pre class="literallayout">
2      3+n                  request length
4n     LISTofPOINT          points
</pre><p>
For unused bytes (the values of the bytes are undefined and do no matter),
the encode-form is:
</p><pre class="literallayout">
   N               unused
</pre><p>

If the number of unused bytes is variable, the encode-form typically is:
</p><pre class="literallayout">
   p               unused, p=pad(E)
</pre><p>
where E is some expression,
<span class="phrase"><a id="encoding:pad"></a>
<a id="idp21241884" class="indexterm"></a>
and pad(E) is the number of bytes needed to round E up to a multiple of four.
</span>
</p><pre class="literallayout">
   pad(E) = (4 - (E mod 4)) mod 4
</pre></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Encoding::Common_Types"></a>Common Types</h2></div></div></div><a id="idp21243604" class="indexterm"></a><div class="variablelist"><table border="0" class="variablelist"><colgroup><col align="left" valign="top" /><col /></colgroup><tbody><tr><td><p><span class="term">LISTofFOO</span></p></td><td><p>
In this document the LISTof notation strictly means some number of repetitions
of the FOO encoding;
the actual length of the list is encoded elsewhere.
      </p></td></tr><tr><td><p><span class="term">SETofFOO</span></p></td><td><p>
A set is always represented by a bitmask, with a 1-bit indicating presence in
the set.
      </p></td></tr></tbody></table></div><div class="informaltable"><table border="0"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left">
BITMASK: CARD32
      </td></tr><tr><td align="left">
WINDOW: CARD32
      </td></tr><tr><td align="left">
PIXMAP: CARD32
      </td></tr><tr><td align="left">
CURSOR: CARD32
      </td></tr><tr><td align="left">
FONT: CARD32
      </td></tr><tr><td align="left">
GCONTEXT: CARD32
      </td></tr><tr><td align="left">
COLORMAP: CARD32
      </td></tr><tr><td align="left">
DRAWABLE: CARD32
      </td></tr><tr><td align="left">
FONTABLE: CARD32
      </td></tr><tr><td align="left">
ATOM: CARD32
      </td></tr><tr><td align="left">
VISUALID: CARD32
      </td></tr><tr><td align="left">
BYTE: 8-bit value
      </td></tr><tr><td align="left">
INT8: 8-bit signed integer
      </td></tr><tr><td align="left">
INT16: 16-bit signed integer
      </td></tr><tr><td align="left">
INT32: 32-bit signed integer
      </td></tr><tr><td align="left">
CARD8: 8-bit unsigned integer
      </td></tr><tr><td align="left">
CARD16: 16-bit unsigned integer
      </td></tr><tr><td align="left">
CARD32: 32-bit unsigned integer
      </td></tr><tr><td align="left">
TIMESTAMP: CARD32
      </td></tr></tbody></table></div><pre class="literallayout">
BITGRAVITY
     0     Forget
     1     NorthWest
     2     North
     3     NorthEast
     4     West
     5     Center
     6     East
     7     SouthWest
     8     South
     9     SouthEast
     10     Static

WINGRAVITY
     0     Unmap
     1     NorthWest
     2     North
     3     NorthEast
     4     West
     5     Center
     6     East
     7     SouthWest
     8     South
     9     SouthEast
     10     Static

BOOL
     0     False
     1     True

SETofEVENT
     #x00000001     KeyPress
     #x00000002     KeyRelease
     #x00000004     ButtonPress
     #x00000008     ButtonRelease
     #x00000010     EnterWindow
     #x00000020     LeaveWindow
     #x00000040     PointerMotion
     #x00000080     PointerMotionHint
     #x00000100     Button1Motion
     #x00000200     Button2Motion
     #x00000400     Button3Motion
     #x00000800     Button4Motion
     #x00001000     Button5Motion
     #x00002000     ButtonMotion
     #x00004000     KeymapState
     #x00008000     Exposure
     #x00010000     VisibilityChange
     #x00020000     StructureNotify
     #x00040000     ResizeRedirect
     #x00080000     SubstructureNotify
     #x00100000     SubstructureRedirect
     #x00200000     FocusChange
     #x00400000     PropertyChange
     #x00800000     ColormapChange
     #x01000000     OwnerGrabButton
     #xFE000000     unused but must be zero

SETofPOINTEREVENT
     encodings are the same as for SETofEVENT, except with
     #xFFFF8003     unused but must be zero

SETofDEVICEEVENT
     encodings are the same as for SETofEVENT, except with
     #xFFFFC0B0     unused but must be zero

KEYSYM: CARD32
KEYCODE: CARD8
BUTTON: CARD8

SETofKEYBUTMASK
     #x0001     Shift
     #x0002     Lock
     #x0004     Control
     #x0008     Mod1
     #x0010     Mod2
     #x0020     Mod3
     #x0040     Mod4
     #x0080     Mod5
     #x0100     Button1
     #x0200     Button2
     #x0400     Button3
     #x0800     Button4
     #x1000     Button5
     #xE000     unused but must be zero

SETofKEYMASK
     encodings are the same as for SETofKEYBUTMASK, except with
     #xFF00          unused but must be zero
STRING8: LISTofCARD8
STRING16: LISTofCHAR2B

CHAR2B
     1     CARD8     byte1
     1     CARD8     byte2

POINT
     2     INT16     x
     2     INT16     y

RECTANGLE
     2     INT16     x
     2     INT16     y
     2     CARD16    width
     2     CARD16    height

ARC
     2     INT16     x
     2     INT16     y
     2     CARD16    width
     2     CARD16    height
     2     INT16     angle1
     2     INT16     angle2

HOST
     1                         family
           0         Internet
           1         DECnet
           2         Chaos
           5         ServerInterpreted
           6         InternetV6
     1                         unused
     2      n                  length of address
     n      LISTofBYTE         address
     p                         unused, p=pad(n)

STR
     1      n                  length of name in bytes
     n      STRING8            name

</pre></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Encoding::Errors"></a>Errors</h2></div></div></div><a id="idp26600492" class="indexterm"></a><pre class="literallayout">
<span class="bold"><strong>Request</strong></span>
     1     0                               Error
     1     1                               code
     2     CARD16                          sequence number
     4                                     unused
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>Value</strong></span>
     1     0                               Error
     1     2                               code
     2     CARD16                          sequence number
     4     &lt;32-bits&gt;                 bad value
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>Window</strong></span>
     1     0                               Error
     1     3                               code
     2     CARD16                          sequence number
     4     CARD32                          bad resource id
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>Pixmap</strong></span>
     1     0                               Error
     1     4                               code
     2     CARD16                          sequence number
     4     CARD32                          bad resource id
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>Atom</strong></span>
     1     0                               Error
     1     5                               code
     2     CARD16                          sequence number
     4     CARD32                          bad atom id
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>Cursor</strong></span>
     1     0                               Error
     1     6                               code
     2     CARD16                          sequence number
     4     CARD32                          bad resource id
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>Font</strong></span>
     1     0                               Error
     1     7                               code
     2     CARD16                          sequence number
     4     CARD32                          bad resource id
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>Match</strong></span>
     1     0                               Error
     1     8                               code
     2     CARD16                          sequence number
     4                                     unused
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>Drawable</strong></span>
     1     0                               Error
     1     9                               code
     2     CARD16                          sequence number
     4     CARD32                          bad resource id
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>Access</strong></span>
     1     0                               Error
     1     10                              code
     2     CARD16                          sequence number
     4                                     unused
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>Alloc</strong></span>
     1     0                               Error
     1     11                              code
     2     CARD16                          sequence number
     4                                     unused
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>Colormap</strong></span>
     1     0                               Error
     1     12                              code
     2     CARD16                          sequence number
     4     CARD32                          bad resource id
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>GContext</strong></span>
     1     0                               Error
     1     13                              code
     2     CARD16                          sequence number
     4     CARD32                          bad resource id
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>IDChoice</strong></span>
     1     0                               Error
     1     14                              code
     2     CARD16                          sequence number
     4     CARD32                          bad resource id
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>Name</strong></span>
     1     0                               Error
     1     15                              code
     2     CARD16                          sequence number
     4                                     unused
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>Length</strong></span>
     1     0                               Error
     1     16                              code
     2     CARD16                          sequence number
     4                                     unused
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused

<span class="bold"><strong>Implementation</strong></span>
     1     0                               Error
     1     17                              code
     2     CARD16                          sequence number
     4                                     unused
     2     CARD16                          minor opcode
     1     CARD8                           major opcode
     21                                    unused
</pre></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Encoding::Keyboards"></a>Keyboards</h2></div></div></div><p>
KEYCODE values are always greater than 7 (and less than 256).
</p><p>
KEYSYM values with the bit #x10000000 set are reserved as vendor-specific.
</p><p>
The names and encodings of the standard KEYSYM values are contained in
<a class="link" href="#keysym_encoding" title="Appendix A. KEYSYM Encoding">Appendix A, Keysym Encoding</a>.
</p></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Encoding::Pointers"></a>Pointers</h2></div></div></div><p>
BUTTON values are numbered starting with one.
</p></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Encoding::Predefined_Atoms"></a>Predefined Atoms</h2></div></div></div><a id="idp26616996" class="indexterm"></a><pre class="literallayout">
PRIMARY           1      WM_NORMAL_HINTS     40
SECONDARY         2      WM_SIZE_HINTS       41
ARC               3      WM_ZOOM_HINTS       42
ATOM              4      MIN_SPACE           43
BITMAP            5      NORM_SPACE          44
CARDINAL          6      MAX_SPACE           45
COLORMAP          7      END_SPACE           46
CURSOR            8      SUPERSCRIPT_X       47
CUT_BUFFER0       9      SUPERSCRIPT_Y       48
CUT_BUFFER1       10     SUBSCRIPT_X         49
CUT_BUFFER2       11     SUBSCRIPT_Y         50
CUT_BUFFER3       12     UNDERLINE_POSITION  51
CUT_BUFFER4       13     UNDERLINE_THICKNESS 52
CUT_BUFFER5       14     STRIKEOUT_ASCENT    53
CUT_BUFFER6       15     STRIKEOUT_DESCENT   54
CUT_BUFFER7       16     ITALIC_ANGLE        55
DRAWABLE          17     X_HEIGHT            56
FONT              18     QUAD_WIDTH          57
INTEGER           19     WEIGHT              58
PIXMAP            20     POINT_SIZE          59
POINT             21     RESOLUTION          60
RECTANGLE         22     COPYRIGHT           61
RESOURCE_MANAGER  23     NOTICE              62
RGB_COLOR_MAP     24     FONT_NAME           63
RGB_BEST_MAP      25     FAMILY_NAME         64
RGB_BLUE_MAP      26     FULL_NAME           65
RGB_DEFAULT_MAP   27     CAP_HEIGHT          66
RGB_GRAY_MAP      28     WM_CLASS            67
RGB_GREEN_MAP     29     WM_TRANSIENT_FOR    68
RGB_RED_MAP       30
STRING            31
VISUALID          32
WINDOW            33
WM_COMMAND        34
WM_HINTS          35
WM_CLIENT_MACHINE 36
WM_ICON_NAME      37
WM_ICON_SIZE      38
WM_NAME           39
</pre></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Encoding::Connection_Setup"></a>Connection Setup</h2></div></div></div><p>
For TCP connections,
displays on a given host are numbered starting from 0,
and the server for display N listens and accepts connections on port 6000 + N.
For DECnet connections,
displays on a given host are numbered starting from 0,
and the server for display N listens and accepts connections on the object
name obtained by concatenating "X$X" with the decimal representation of N,
for example, X$X0 and X$X1.
</p><p>
Information sent by the client at connection setup:
</p><pre class="literallayout">
     1                       byte-order
          #x42     MSB first
          #x6C     LSB first
     1                       unused
     2     CARD16            protocol-major-version
     2     CARD16            protocol-minor-version
     2     n                 length of authorization-protocol-name
     2     d                 length of authorization-protocol-data
     2                       unused
     n     STRING8           authorization-protocol-name
     p                       unused, p=pad(n)
     d     STRING8           authorization-protocol-data
     q                       unused, q=pad(d)
</pre><p>
Except where explicitly noted in the protocol,
all 16-bit and 32-bit quantities sent by the client must be transmitted
with the specified byte order,
and all 16-bit and 32-bit quantities returned by the server will be transmitted
with this byte order.
</p><p>
Information received by the client if the connection is refused:
</p><pre class="literallayout">
     1     0                 Failed
     1     n                 length of reason in bytes
     2     CARD16            protocol-major-version
     2     CARD16            protocol-minor-version
     2     (n+p)/4           length in 4-byte units of "additional data"
     n     STRING8           reason
     p                       unused, p=pad(n)
</pre><p>
Information received by the client if further authentication is required:
</p><pre class="literallayout">
     1     2                 Authenticate
     5                       unused
     2     (n+p)/4           length in 4-byte units of "additional data"
     n     STRING8           reason
     p                       unused, p=pad(n)
</pre><p>
Information received by the client if the connection is accepted:
</p><pre class="literallayout">
     1     1                               Success
     1                                     unused
     2     CARD16                          protocol-major-version
     2     CARD16                          protocol-minor-version
     2     8+2n+(v+p+m)/4                  length in 4-byte units of
                                           "additional data"
     4     CARD32                          release-number
     4     CARD32                          resource-id-base
     4     CARD32                          resource-id-mask
     4     CARD32                          motion-buffer-size
     2     v                               length of vendor
     2     CARD16                          maximum-request-length
     1     CARD8                           number of SCREENs in roots
     1     n                               number for FORMATs in
                                           pixmap-formats
     1                                     image-byte-order
          0     LSBFirst
          1     MSBFirst
     1                                     bitmap-format-bit-order
          0     LeastSignificant
          1     MostSignificant
     1     CARD8                           bitmap-format-scanline-unit
     1     CARD8                           bitmap-format-scanline-pad
     1     KEYCODE                         min-keycode
     1     KEYCODE                         max-keycode
     4                                     unused
     v     STRING8                         vendor
     p                                     unused, p=pad(v)
     8n     LISTofFORMAT                   pixmap-formats
     m     LISTofSCREEN                    roots (m is always a multiple of 4)
</pre><pre class="literallayout">
FORMAT
     1     CARD8                           depth
     1     CARD8                           bits-per-pixel
     1     CARD8                           scanline-pad
     5                                     unused
</pre><pre class="literallayout">
SCREEN
     4     WINDOW                          root
     4     COLORMAP                        default-colormap
     4     CARD32                          white-pixel
     4     CARD32                          black-pixel
     4     SETofEVENT                      current-input-masks
     2     CARD16                          width-in-pixels
     2     CARD16                          height-in-pixels
     2     CARD16                          width-in-millimeters
     2     CARD16                          height-in-millimeters
     2     CARD16                          min-installed-maps
     2     CARD16                          max-installed-maps
     4     VISUALID                        root-visual
     1                                     backing-stores
          0     Never
          1     WhenMapped
          2     Always
     1     BOOL                            save-unders
     1     CARD8                           root-depth
     1     CARD8                           number of DEPTHs in allowed-depths
     n     LISTofDEPTH                     allowed-depths (n is always a
                                           multiple of 4)
</pre><pre class="literallayout">
DEPTH
     1     CARD8                           depth
     1                                     unused
     2     n                               number of VISUALTYPES in visuals
     4                                     unused
     24n     LISTofVISUALTYPE              visuals
</pre><pre class="literallayout">
VISUALTYPE
     4     VISUALID                        visual-id
     1                                     class
          0     StaticGray
          1     GrayScale
          2     StaticColor
          3     PseudoColor
          4     TrueColor
          5     DirectColor
     1     CARD8                           bits-per-rgb-value
     2     CARD16                          colormap-entries
     4     CARD32                          red-mask
     4     CARD32                          green-mask
     4     CARD32                          blue-mask
     4                                     unused
</pre></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Encoding::Requests"></a>Requests</h2></div></div></div><a id="idp25764436" class="indexterm"></a><pre class="literallayout">
<a class="link" href="#requests:CreateWindow" title="CreateWindow"><span class="bold"><strong>CreateWindow</strong></span></a>
     1     1                               opcode
     1     CARD8                           depth
     2     8+n                             request length
     4     WINDOW                          wid
     4     WINDOW                          parent
     2     INT16                           x
     2     INT16                           y
     2     CARD16                          width
     2     CARD16                          height
     2     CARD16                          border-width
     2                                     class
          0     CopyFromParent
          1     InputOutput
          2     InputOnly
     4     VISUALID                        visual
          0     CopyFromParent
     4     BITMASK                         value-mask (has n bits set to 1)
          #x00000001     background-pixmap
          #x00000002     background-pixel
          #x00000004     border-pixmap
          #x00000008     border-pixel
          #x00000010     bit-gravity
          #x00000020     win-gravity
          #x00000040     backing-store
          #x00000080     backing-planes
          #x00000100     backing-pixel
          #x00000200     override-redirect
          #x00000400     save-under
          #x00000800     event-mask
          #x00001000     do-not-propagate-mask
          #x00002000     colormap
          #x00004000     cursor
     4n     LISTofVALUE                    value-list

  VALUEs
     4     PIXMAP                          background-pixmap
          0     None
          1     ParentRelative
     4     CARD32                          background-pixel
     4     PIXMAP                          border-pixmap
          0     CopyFromParent
     4     CARD32                          border-pixel
     1     BITGRAVITY                      bit-gravity
     1     WINGRAVITY                      win-gravity
     1                                     backing-store
          0     NotUseful
          1     WhenMapped
          2     Always
     4     CARD32                          backing-planes
     4     CARD32                          backing-pixel
     1     BOOL                            override-redirect
     1     BOOL                            save-under
     4     SETofEVENT                      event-mask
     4     SETofDEVICEEVENT                do-not-propagate-mask
     4     COLORMAP                        colormap
          0     CopyFromParent
     4     CURSOR                          cursor
          0     None

<a class="link" href="#requests:ChangeWindowAttributes" title="ChangeWindowAttributes"><span class="bold"><strong>ChangeWindowAttributes</strong></span></a>
     1     2                               opcode
     1                                     unused
     2     3+n                             request length
     4     WINDOW                          window
     4     BITMASK                         value-mask (has n bits set to 1)
          encodings are the same as for CreateWindow
     4n     LISTofVALUE                    value-list
          encodings are the same as for CreateWindow

<a class="link" href="#requests:GetWindowAttributes" title="GetWindowAttributes"><span class="bold"><strong>GetWindowAttributes</strong></span></a>
     1     3                               opcode
     1                                     unused
     2     2                               request length
     4     WINDOW                          window

▶
     1     1                               Reply
     1                                     backing-store
          0     NotUseful
          1     WhenMapped
          2     Always
     2     CARD16                          sequence number
     4     3                               reply length
     4     VISUALID                        visual
     2                                     class
          1     InputOutput
          2     InputOnly
     1     BITGRAVITY                      bit-gravity
     1     WINGRAVITY                      win-gravity
     4     CARD32                          backing-planes
     4     CARD32                          backing-pixel
     1     BOOL                            save-under
     1     BOOL                            map-is-installed
     1                                     map-state
          0     Unmapped
          1     Unviewable
          2     Viewable
     1     BOOL                            override-redirect
     4     COLORMAP                        colormap
          0     None
     4     SETofEVENT                      all-event-masks
     4     SETofEVENT                      your-event-mask
     2     SETofDEVICEEVENT                do-not-propagate-mask
     2                                     unused

<a class="link" href="#requests:DestroyWindow" title="DestroyWindow"><span class="bold"><strong>DestroyWindow</strong></span></a>
     1     4                               opcode
     1                                     unused
     2     2                               request length
     4     WINDOW                          window

<a class="link" href="#requests:DestroySubwindows" title="DestroySubwindows"><span class="bold"><strong>DestroySubwindows</strong></span></a>
     1     5                               opcode
     1                                     unused
     2     2                               request length
     4     WINDOW                          window

<a class="link" href="#requests:ChangeSaveSet" title="ChangeSaveSet"><span class="bold"><strong>ChangeSaveSet</strong></span></a>
     1     6                               opcode
     1                                     mode
          0     Insert
          1     Delete
     2     2                               request length
     4     WINDOW                          window

<a class="link" href="#requests:ReparentWindow" title="ReparentWindow"><span class="bold"><strong>ReparentWindow</strong></span></a>
     1     7                               opcode
     1                                     unused
     2     4                               request length
     4     WINDOW                          window
     4     WINDOW                          parent
     2     INT16                           x
     2     INT16                           y

<a class="link" href="#requests:MapWindow" title="MapWindow"><span class="bold"><strong>MapWindow</strong></span></a>
     1     8                               opcode
     1                                     unused
     2     2                               request length
     4     WINDOW                          window

<a class="link" href="#requests:MapSubwindows" title="MapSubwindows"><span class="bold"><strong>MapSubwindows</strong></span></a>
     1     9                               opcode
     1                                     unused
     2     2                               request length
     4     WINDOW                          window

<a class="link" href="#requests:UnmapWindow" title="UnmapWindow"><span class="bold"><strong>UnmapWindow</strong></span></a>
     1     10                              opcode
     1                                     unused
     2     2                               request length
     4     WINDOW                          window

<a class="link" href="#requests:UnmapSubwindows" title="UnmapSubwindows"><span class="bold"><strong>UnmapSubwindows</strong></span></a>
     1     11                              opcode
     1                                     unused
     2     2                               request length
     4     WINDOW                          window

<a class="link" href="#requests:ConfigureWindow" title="ConfigureWindow"><span class="bold"><strong>ConfigureWindow</strong></span></a>
     1     12                              opcode
     1                                     unused
     2     3+n                             request length
     4     WINDOW                          window
     2     BITMASK                         value-mask (has n bits set to 1)
          #x0001     x
          #x0002     y
          #x0004     width
          #x0008     height
          #x0010     border-width
          #x0020     sibling
          #x0040     stack-mode
     2               unused
     4n     LISTofVALUE                    value-list

  VALUEs
     2     INT16                           x
     2     INT16                           y
     2     CARD16                          width
     2     CARD16                          height
     2     CARD16                          border-width
     4     WINDOW                          sibling
     1                                     stack-mode
          0     Above
          1     Below
          2     TopIf
          3     BottomIf
          4     Opposite

<a class="link" href="#requests:CirculateWindow" title="CirculateWindow"><span class="bold"><strong>CirculateWindow</strong></span></a>
     1     13                              opcode
     1                                     direction
          0     RaiseLowest
          1     LowerHighest
     2     2                               request length
     4     WINDOW                          window

<a class="link" href="#requests:GetGeometry" title="GetGeometry"><span class="bold"><strong>GetGeometry</strong></span></a>
     1     14                              opcode
     1                                     unused
     2     2                               request length
     4     DRAWABLE                        drawable

▶
     1     1                               Reply
     1     CARD8                           depth
     2     CARD16                          sequence number
     4     0                               reply length
     4     WINDOW                          root
     2     INT16                           x
     2     INT16                           y
     2     CARD16                          width
     2     CARD16                          height
     2     CARD16                          border-width
     10                                    unused

<a class="link" href="#requests:QueryTree" title="QueryTree"><span class="bold"><strong>QueryTree</strong></span></a>
     1     15                              opcode
     1                                     unused
     2     2                               request length
     4     WINDOW                          window

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     n                               reply length
     4     WINDOW                          root
     4     WINDOW                          parent
          0     None
     2     n                               number of WINDOWs in children
     14                                    unused
     4n     LISTofWINDOW                   children

<a class="link" href="#requests:InternAtom" title="InternAtom"><span class="bold"><strong>InternAtom</strong></span></a>
     1     16                              opcode
     1     BOOL                            only-if-exists
     2     2+(n+p)/4                       request length
     2     n                               length of name
     2                                     unused
     n     STRING8                         name
     p                                     unused, p=pad(n)

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     0                               reply length
     4     ATOM                            atom
           0     None
     20                                    unused

<a class="link" href="#requests:GetAtomName" title="GetAtomName"><span class="bold"><strong>GetAtomName</strong></span></a>
     1     17                              opcode
     1                                     unused
     2     2                               request length
     4     ATOM                            atom

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     (n+p)/4                         reply length
     2     n                               length of name
     22                                    unused
     n     STRING8                         name
     p                                     unused, p=pad(n)

<a class="link" href="#requests:ChangeProperty" title="ChangeProperty"><span class="bold"><strong>ChangeProperty</strong></span></a>
     1     18                              opcode
     1                                     mode
          0     Replace
          1     Prepend
          2     Append
     2     6+(n+p)/4                       request length
     4     WINDOW                          window
     4     ATOM                            property
     4     ATOM                            type
     1     CARD8                           format
     3                                     unused
     4     CARD32                          length of data in format units
                    (= n for format = 8)
                    (= n/2 for format = 16)
                    (= n/4 for format = 32)
     n     LISTofBYTE                      data
                    (n is a multiple of 2 for format = 16)
                    (n is a multiple of 4 for format = 32)
     p                                     unused, p=pad(n)


<a class="link" href="#requests:DeleteProperty" title="DeleteProperty"><span class="bold"><strong>DeleteProperty</strong></span></a>
     1     19                              opcode
     1                                     unused
     2     3                               request length
     4     WINDOW                          window
     4     ATOM                            property

<a class="link" href="#requests:GetProperty" title="GetProperty"><span class="bold"><strong>GetProperty</strong></span></a>
     1     20                              opcode
     1     BOOL                            delete
     2     6                               request length
     4     WINDOW                          window
     4     ATOM                            property
     4     ATOM                            type
          0     AnyPropertyType
     4     CARD32                          long-offset
     4     CARD32                          long-length

▶
     1     1                               Reply
     1     CARD8                           format
     2     CARD16                          sequence number
     4     (n+p)/4                         reply length
     4     ATOM                            type
          0     None
     4     CARD32                          bytes-after
     4     CARD32                          length of value in format units
                    (= 0 for format = 0)
                    (= n for format = 8)
                    (= n/2 for format = 16)
                    (= n/4 for format = 32)
     12                                    unused
     n     LISTofBYTE                      value
                    (n is zero for format = 0)
                    (n is a multiple of 2 for format = 16)
                    (n is a multiple of 4 for format = 32)
     p                                     unused, p=pad(n)

<a class="link" href="#requests:ListProperties" title="ListProperties"><span class="bold"><strong>ListProperties</strong></span></a>
     1     21                              opcode
     1                                     unused
     2     2                               request length
     4     WINDOW                          window

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     n                               reply length
     2     n                               number of ATOMs in atoms
     22                                    unused
     4n     LISTofATOM                     atoms

<a class="link" href="#requests:SetSelectionOwner" title="SetSelectionOwner"><span class="bold"><strong>SetSelectionOwner</strong></span></a>
     1     22                              opcode
     1                                     unused
     2     4                               request length
     4     WINDOW                          owner
          0     None
     4     ATOM                            selection
     4     TIMESTAMP                       time
          0     CurrentTime

<a class="link" href="#requests:GetSelectionOwner" title="GetSelectionOwner"><span class="bold"><strong>GetSelectionOwner</strong></span></a>
     1     23                              opcode
     1                                     unused
     2     2                               request length
     4     ATOM                            selection

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     0                               reply length
     4     WINDOW                          owner
          0     None
     20                                    unused

<a class="link" href="#requests:ConvertSelection" title="ConvertSelection"><span class="bold"><strong>ConvertSelection</strong></span></a>
     1     24                              opcode
     1                                     unused
     2     6                               request length
     4     WINDOW                          requestor
     4     ATOM                            selection
     4     ATOM                            target
     4     ATOM                            property
          0     None
     4     TIMESTAMP                       time
          0     CurrentTime

<a class="link" href="#requests:SendEvent" title="SendEvent"><span class="bold"><strong>SendEvent</strong></span></a>
     1     25                              opcode
     1     BOOL                            propagate
     2     11                              requestlength
     4     WINDOW                          destination
          0     PointerWindow
          1     InputFocus
     4     SETofEVENT                      event-mask
     32                                    event
          standard event format (see <a class="link" href="#Events" title="Chapter 11. Events">the Events section</a>)

<a class="link" href="#requests:GrabPointer" title="GrabPointer"><span class="bold"><strong>GrabPointer</strong></span></a>
     1     26                              opcode
     1     BOOL                            owner-events
     2     6                               request length
     4     WINDOW                          grab-window
     2     SETofPOINTEREVENT               event-mask
     1                                     pointer-mode
          0     Synchronous
          1     Asynchronous
     1                                     keyboard-mode
          0     Synchronous
          1     Asynchronous
     4     WINDOW                          confine-to
          0     None
     4     CURSOR                          cursor
          0     None
     4     TIMESTAMP                       time
          0     CurrentTime

▶
     1     1                               Reply
     1                                     status
          0     Success
          1     AlreadyGrabbed
          2     InvalidTime
          3     NotViewable
          4     Frozen
     2     CARD16                          sequence number
     4     0                               reply length
     24                                    unused

<a class="link" href="#requests:UngrabPointer" title="UngrabPointer"><span class="bold"><strong>UngrabPointer</strong></span></a>
     1     27                              opcode
     1                                     unused
     2     2                               request length
     4     TIMESTAMP                       time
          0     CurrentTime

<a class="link" href="#requests:GrabButton" title="GrabButton"><span class="bold"><strong>GrabButton</strong></span></a>
     1     28                              opcode
     1     BOOL                            owner-events
     2     6                               request length
     4     WINDOW                          grab-window
     2     SETofPOINTEREVENT               event-mask
     1                                     pointer-mode
          0     Synchronous
          1     Asynchronous
     1                                     keyboard-mode
          0     Synchronous
          1     Asynchronous
     4     WINDOW                          confine-to
          0     None
     4     CURSOR                          cursor
          0     None
     1     BUTTON                          button
          0     AnyButton
     1                                     unused
     2     SETofKEYMASK                    modifiers
          #x8000                           AnyModifier

<a class="link" href="#requests:UngrabButton" title="UngrabButton"><span class="bold"><strong>UngrabButton</strong></span></a>
     1     29                              opcode
     1     BUTTON                          button
          0     AnyButton
     2     3                               request length
     4     WINDOW                          grab-window
     2     SETofKEYMASK                    modifiers
          #x8000                           AnyModifier
     2                                     unused

<a class="link" href="#requests:ChangeActivePointerGrab" title="ChangeActivePointerGrab"><span class="bold"><strong>ChangeActivePointerGrab</strong></span></a>
     1     30                              opcode
     1                                     unused
     2     4                               request length
     4     CURSOR                          cursor
          0     None
     4     TIMESTAMP                       time
          0     CurrentTime
     2     SETofPOINTEREVENT               event-mask
     2                                     unused

<a class="link" href="#requests:GrabKeyboard" title="GrabKeyboard"><span class="bold"><strong>GrabKeyboard</strong></span></a>
     1     31                              opcode
     1     BOOL                            owner-events
     2     4                               request length
     4     WINDOW                          grab-window
     4     TIMESTAMP                       time
          0     CurrentTime
     1                                     pointer-mode
          0     Synchronous
          1     Asynchronous
     1                                     keyboard-mode
          0     Synchronous
          1     Asynchronous
     2                                     unused

▶
     1     1                               Reply
     1                                     status
          0     Success
          1     AlreadyGrabbed
          2     InvalidTime
          3     NotViewable
          4     Frozen
     2     CARD16                          sequence number
     4     0                               reply length
     24                                    unused

<a class="link" href="#requests:UngrabKeyboard" title="UngrabKeyboard"><span class="bold"><strong>UngrabKeyboard</strong></span></a>
     1     32                              opcode
     1                                     unused
     2     2                               request length
     4     TIMESTAMP                       time
          0     CurrentTime

<a class="link" href="#requests:GrabKey" title="GrabKey"><span class="bold"><strong>GrabKey</strong></span></a>
     1     33                              opcode
     1     BOOL                            owner-events
     2     4                               request length
     4     WINDOW                          grab-window
     2     SETofKEYMASK                    modifiers
          #x8000     AnyModifier
     1     KEYCODE                         key
          0     AnyKey
     1                                     pointer-mode
          0     Synchronous
          1     Asynchronous
     1                                     keyboard-mode
          0     Synchronous
          1     Asynchronous
     3                                     unused

<a class="link" href="#requests:UngrabKey" title="UngrabKey"><span class="bold"><strong>UngrabKey</strong></span></a>
     1     34                              opcode
     1     KEYCODE                         key
          0     AnyKey
     2     3                               request length
     4     WINDOW                          grab-window
     2     SETofKEYMASK                    modifiers
          #x8000     AnyModifier
     2                                     unused

<a class="link" href="#requests:AllowEvents" title="AllowEvents"><span class="bold"><strong>AllowEvents</strong></span></a>
     1     35                              opcode
     1                                     mode
          0     AsyncPointer
          1     SyncPointer
          2     ReplayPointer
          3     AsyncKeyboard
          4     SyncKeyboard
          5     ReplayKeyboard
          6     AsyncBoth
          7     SyncBoth
     2     2                               request length
     4     TIMESTAMP                       time
          0     CurrentTime

<a class="link" href="#requests:GrabServer" title="GrabServer"><span class="bold"><strong>GrabServer</strong></span></a>
     1     36                              opcode
     1                                     unused
     2     1                               request length

<a class="link" href="#requests:UngrabServer" title="UngrabServer"><span class="bold"><strong>UngrabServer</strong></span></a>
     1     37                              opcode
     1                                     unused
     2     1                               request length

<a class="link" href="#requests:QueryPointer" title="QueryPointer"><span class="bold"><strong>QueryPointer</strong></span></a>
     1     38                              opcode
     1                                     unused
     2     2                               request length
     4     WINDOW                          window

▶
     1     1                               Reply
     1     BOOL                            same-screen
     2     CARD16                          sequence number
     4     0                               reply length
     4     WINDOW                          root
     4     WINDOW                          child
          0     None
     2     INT16                           root-x
     2     INT16                           root-y
     2     INT16                           win-x
     2     INT16                           win-y
     2     SETofKEYBUTMASK                 mask
     6                                     unused

<a class="link" href="#requests:GetMotionEvents" title="GetMotionEvents"><span class="bold"><strong>GetMotionEvents</strong></span></a>
     1     39                              opcode
     1                                     unused
     2     4                               request length
     4     WINDOW                          window
     4     TIMESTAMP                       start
          0     CurrentTime
     4     TIMESTAMP                       stop
          0     CurrentTime

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     2n                              reply length
     4     n                               number of TIMECOORDs in events
     20                                    unused
     8n     LISTofTIMECOORD                events

  TIMECOORD
     4     TIMESTAMP                       time
     2     INT16                           x
     2     INT16                           y

<a class="link" href="#requests:TranslateCoordinates" title="TranslateCoordinates"><span class="bold"><strong>TranslateCoordinates</strong></span></a>
     1     40                              opcode
     1                                     unused
     2     4                               request length
     4     WINDOW                          src-window
     4     WINDOW                          dst-window
     2     INT16                           src-x
     2     INT16                           src-y
▶
     1     1                               Reply
     1     BOOL                            same-screen
     2     CARD16                          sequence number
     4     0                               reply length
     4     WINDOW                          child
          0     None
     2     INT16                           dst-x
     2     INT16                           dst-y
     16                                    unused

<a class="link" href="#requests:WarpPointer" title="WarpPointer"><span class="bold"><strong>WarpPointer</strong></span></a>
     1     41                              opcode
     1                                     unused
     2     6                               request length
     4     WINDOW                          src-window
          0     None
     4     WINDOW                          dst-window
          0     None
     2     INT16                           src-x
     2     INT16                           src-y
     2     CARD16                          src-width
     2     CARD16                          src-height
     2     INT16                           dst-x
     2     INT16                           dst-y

<a class="link" href="#requests:SetInputFocus" title="SetInputFocus"><span class="bold"><strong>SetInputFocus</strong></span></a>
     1     42                              opcode
     1                                     revert-to
          0     None
          1     PointerRoot
          2     Parent
     2     3                               request length
     4     WINDOW                          focus
          0     None
          1     PointerRoot
     4     TIMESTAMP                       time
          0     CurrentTime

<a class="link" href="#requests:GetInputFocus" title="GetInputFocus"><span class="bold"><strong>GetInputFocus</strong></span></a>
     1     43                              opcode
     1                                     unused
     2     1                               request length

▶
     1     1                               Reply
     1                                     revert-to
          0     None
          1     PointerRoot
          2     Parent
     2     CARD16                          sequence number
     4     0                               reply length
     4     WINDOW                          focus
          0     None
          1     PointerRoot
     20                                    unused

<a class="link" href="#requests:QueryKeymap" title="QueryKeymap"><span class="bold"><strong>QueryKeymap</strong></span></a>
     1     44                              opcode
     1                                     unused
     2     1                               request length

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     2                               reply length
     32     LISTofCARD8                    keys

<a class="link" href="#requests:OpenFont" title="OpenFont"><span class="bold"><strong>OpenFont</strong></span></a>
     1     45                              opcode
     1                                     unused
     2     3+(n+p)/4                       request length
     4     FONT                            fid
     2     n                               length of name
     2                                     unused
     n     STRING8                         name
     p                                     unused, p=pad(n)

<a class="link" href="#requests:CloseFont" title="CloseFont"><span class="bold"><strong>CloseFont</strong></span></a>
     1     46                              opcode
     1                                     unused
     2     2                               request length
     4     FONT                            font

<a class="link" href="#requests:QueryFont" title="QueryFont"><span class="bold"><strong>QueryFont</strong></span></a>
     1     47                              opcode
     1                                     unused
     2     2                               request length
     4     FONTABLE                        font

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     7+2n+3m                         reply length
     12     CHARINFO                       min-bounds
     4                                     unused
     12     CHARINFO                       max-bounds
     4                                     unused
     2     CARD16                          min-char-or-byte2
     2     CARD16                          max-char-or-byte2
     2     CARD16                          default-char
     2     n                               number of FONTPROPs in properties
     1                                     draw-direction
          0     LeftToRight
          1     RightToLeft
     1     CARD8                           min-byte1
     1     CARD8                           max-byte1
     1     BOOL                            all-chars-exist
     2     INT16                           font-ascent
     2     INT16                           font-descent
     4     m                               number of CHARINFOs in char-infos
     8n     LISTofFONTPROP                 properties
     12m     LISTofCHARINFO                char-infos

  FONTPROP
     4     ATOM                            name
     4     &lt;32-bits&gt;                 value

  CHARINFO
     2     INT16                           left-side-bearing
     2     INT16                           right-side-bearing
     2     INT16                           character-width
     2     INT16                           ascent
     2     INT16                           descent
     2     CARD16                          attributes

<a class="link" href="#requests:QueryTextExtents" title="QueryTextExtents"><span class="bold"><strong>QueryTextExtents</strong></span></a>
     1     48                              opcode
     1     BOOL                            odd length, True if p = 2
     2     2+(2n+p)/4                      request length
     4     FONTABLE                        font
     2n     STRING16                       string
     p                                     unused, p=pad(2n)

▶
     1     1                               Reply
     1                                     draw-direction
          0     LeftToRight
          1     RightToLeft
     2     CARD16                          sequence number
     4     0                               reply length
     2     INT16                           font-ascent
     2     INT16                           font-descent
     2     INT16                           overall-ascent
     2     INT16                           overall-descent
     4     INT32                           overall-width
     4     INT32                           overall-left
     4     INT32                           overall-right
     4                                     unused

<a class="link" href="#requests:ListFonts" title="ListFonts"><span class="bold"><strong>ListFonts</strong></span></a>
     1     49                              opcode
     1                                     unused
     2     2+(n+p)/4                       request length
     2     CARD16                          max-names
     2     n                               length of pattern
     n     STRING8                         pattern
     p                                     unused, p=pad(n)

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     (n+p)/4                         reply length
     2     CARD16                          number of STRs in names
     22                                    unused
     n     LISTofSTR                       names
     p                                     unused, p=pad(n)

<a class="link" href="#requests:ListFontsWithInfo" title="ListFontsWithInfo"><span class="bold"><strong>ListFontsWithInfo</strong></span></a>
     1     50                              opcode
     1                                     unused
     2     2+(n+p)/4                       request length
     2     CARD16                          max-names
     2     n                               length of pattern
     n     STRING8                         pattern
     p                                     unused, p=pad(n)

▶ (except for last in series)
     1     1                               Reply
     1     n                               length of name in bytes
     2     CARD16                          sequence number
     4     7+2m+(n+p)/4                    reply length
     12     CHARINFO                       min-bounds
     4                                     unused
     12     CHARINFO                       max-bounds
     4                                     unused
     2     CARD16                          min-char-or-byte2
     2     CARD16                          max-char-or-byte2
     2     CARD16                          default-char
     2     m                               number of FONTPROPs in properties
     1                                     draw-direction
          0     LeftToRight
          1     RightToLeft
     1     CARD8                           min-byte1
     1     CARD8                           max-byte1
     1     BOOL                            all-chars-exist
     2     INT16                           font-ascent
     2     INT16                           font-descent
     4     CARD32                          replies-hint
     8m     LISTofFONTPROP                 properties
     n     STRING8                         name
     p                                     unused, p=pad(n)

  FONTPROP
     encodings are the same as for QueryFont

  CHARINFO
     encodings are the same as for QueryFont

▶ (last in series)
     1     1                               Reply
     1     0                               last-reply indicator
     2     CARD16                          sequence number
     4     7                               reply length
     52                                    unused

<a class="link" href="#requests:SetFontPath" title="SetFontPath"><span class="bold"><strong>SetFontPath</strong></span></a>
     1     51                              opcode
     1                                     unused
     2     2+(n+p)/4                       request length
     2     CARD16                          number of STRs in path
     2                                     unused
     n     LISTofSTR                       path
     p                                     unused, p=pad(n)

<a class="link" href="#requests:GetFontPath" title="GetFontPath"><span class="bold"><strong>GetFontPath</strong></span></a>
     1     52                              opcode
     1                                     unused
     2     1                               request list

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     (n+p)/4                         reply length
     2     CARD16                          number of STRs in path
     22                                    unused
     n     LISTofSTR                       path
     p                                     unused, p=pad(n)

<a class="link" href="#requests:CreatePixmap" title="CreatePixmap"><span class="bold"><strong>CreatePixmap</strong></span></a>
     1     53                              opcode
     1     CARD8                           depth
     2     4                               request length
     4     PIXMAP                          pid
     4     DRAWABLE                        drawable
     2     CARD16                          width
     2     CARD16                          height

<a class="link" href="#requests:FreePixmap" title="FreePixmap"><span class="bold"><strong>FreePixmap</strong></span></a>
     1     54                              opcode
     1                                     unused
     2     2                               request length
     4     PIXMAP                          pixmap

<a class="link" href="#requests:CreateGC" title="CreateGC"><span class="bold"><strong>CreateGC</strong></span></a>
     1     55                              opcode
     1                                     unused
     2     4+n                             request length
     4     GCONTEXT                        cid
     4     DRAWABLE                        drawable
     4     BITMASK                         value-mask (has n bits set to 1)
          #x00000001     function
          #x00000002     plane-mask
          #x00000004     foreground
          #x00000008     background
          #x00000010     line-width
          #x00000020     line-style
          #x00000040     cap-style
          #x00000080     join-style
          #x00000100     fill-style
          #x00000200     fill-rule
          #x00000400     tile
          #x00000800     stipple
          #x00001000     tile-stipple-x-origin
          #x00002000     tile-stipple-y-origin
          #x00004000     font
          #x00008000     subwindow-mode
          #x00010000     graphics-exposures
          #x00020000     clip-x-origin
          #x00040000     clip-y-origin
          #x00080000     clip-mask
          #x00100000     dash-offset
          #x00200000     dashes
          #x00400000     arc-mode
     4n     LISTofVALUE                    value-list

  VALUEs
     1                                     function
           0     Clear
           1     And
           2     AndReverse
           3     Copy
           4     AndInverted
           5     NoOp
           6     Xor
           7     Or
           8     Nor
           9     Equiv
          10     Invert
          11     OrReverse
          12     CopyInverted
          13     OrInverted
          14     Nand
          15     Set
     4     CARD32                          plane-mask
     4     CARD32                          foreground
     4     CARD32                          background
     2     CARD16                          line-width
     1                                     line-style
          0     Solid
          1     OnOffDash
          2     DoubleDash
     1                                     cap-style
          0     NotLast
          1     Butt
          2     Round
          3     Projecting
     1                                     join-style
          0     Miter
          1     Round
          2     Bevel
     1                                     fill-style
          0     Solid
          1     Tiled
          2     Stippled
          3     OpaqueStippled
     1                                     fill-rule
          0     EvenOdd
          1     Winding
     4     PIXMAP                          tile
     4     PIXMAP                          stipple
     2     INT16                           tile-stipple-x-origin
     2     INT16                           tile-stipple-y-origin
     4     FONT                            font
     1                                     subwindow-mode
          0     ClipByChildren
          1     IncludeInferiors
     1     BOOL                            graphics-exposures
     2     INT16                           clip-x-origin
     2     INT16                           clip-y-origin
     4     PIXMAP                          clip-mask
          0     None
     2     CARD16                          dash-offset
     1     CARD8                           dashes
     1                                     arc-mode
          0     Chord
          1     PieSlice

<a class="link" href="#requests:ChangeGC" title="ChangeGC"><span class="bold"><strong>ChangeGC</strong></span></a>
     1     56                              opcode
     1                                     unused
     2     3+n                             request length
     4     GCONTEXT                        gc
     4     BITMASK                         value-mask (has n bits set to 1)
          encodings are the same as for CreateGC
     4n     LISTofVALUE                    value-list
          encodings are the same as for CreateGC

<a class="link" href="#requests:CopyGC" title="CopyGC"><span class="bold"><strong>CopyGC</strong></span></a>
     1     57                              opcode
     1                                     unused
     2     4                               request length
     4     GCONTEXT                        src-gc
     4     GCONTEXT                        dst-gc
     4     BITMASK                         value-mask
          encodings are the same as for CreateGC

<a class="link" href="#requests:SetDashes" title="SetDashes"><span class="bold"><strong>SetDashes</strong></span></a>
     1     58                              opcode
     1                                     unused
     2     3+(n+p)/4                       request length
     4     GCONTEXT                        gc
     2     CARD16                          dash-offset
     2     n                               length of dashes
     n     LISTofCARD8                     dashes
     p                                     unused, p=pad(n)

<a class="link" href="#requests:SetClipRectangles" title="SetClipRectangles"><span class="bold"><strong>SetClipRectangles</strong></span></a>
     1     59                              opcode
     1                                     ordering
          0     UnSorted
          1     YSorted
          2     YXSorted
          3     YXBanded
     2     3+2n                            request length
     4     GCONTEXT                        gc
     2     INT16                           clip-x-origin
     2     INT16                           clip-y-origin
     8n     LISTofRECTANGLE                rectangles

<a class="link" href="#requests:FreeGC" title="FreeGC"><span class="bold"><strong>FreeGC</strong></span></a>
     1     60                              opcode
     1                                     unused
     2     2                               request length
     4     GCONTEXT                        gc

<a class="link" href="#requests:ClearArea" title="ClearArea"><span class="bold"><strong>ClearArea</strong></span></a>
     1     61                              opcode
     1     BOOL                            exposures
     2     4                               request length
     4     WINDOW                          window
     2     INT16                           x
     2     INT16                           y
     2     CARD16                          width
     2     CARD16                          height

<a class="link" href="#requests:CopyArea" title="CopyArea"><span class="bold"><strong>CopyArea</strong></span></a>
     1     62                              opcode
     1                                     unused
     2     7                               request length
     4     DRAWABLE                        src-drawable
     4     DRAWABLE                        dst-drawable
     4     GCONTEXT                        gc
     2     INT16                           src-x
     2     INT16                           src-y
     2     INT16                           dst-x
     2     INT16                           dst-y
     2     CARD16                          width
     2     CARD16                          height

<a class="link" href="#requests:CopyPlane" title="CopyPlane"><span class="bold"><strong>CopyPlane</strong></span></a>
     1     63                              opcode
     1                                     unused
     2     8                               request length
     4     DRAWABLE                        src-drawable
     4     DRAWABLE                        dst-drawable
     4     GCONTEXT                        gc
     2     INT16                           src-x
     2     INT16                           src-y
     2     INT16                           dst-x
     2     INT16                           dst-y
     2     CARD16                          width
     2     CARD16                          height
     4     CARD32                          bit-plane

<a class="link" href="#requests:PolyPoint" title="PolyPoint"><span class="bold"><strong>PolyPoint</strong></span></a>
     1     64                              opcode
     1                                     coordinate-mode
          0     Origin
          1     Previous
     2     3+n                             request length
     4     DRAWABLE                        drawable
     4     GCONTEXT                        gc
     4n     LISTofPOINT                    points

<a class="link" href="#requests:PolyLine" title="PolyLine"><span class="bold"><strong>PolyLine</strong></span></a>
     1     65                              opcode
     1                                     coordinate-mode
          0     Origin
          1     Previous
     2     3+n                             request length
     4     DRAWABLE                        drawable
     4     GCONTEXT                        gc
     4n     LISTofPOINT                    points

<a class="link" href="#requests:PolySegment" title="PolySegment"><span class="bold"><strong>PolySegment</strong></span></a>
     1     66                              opcode
     1                                     unused
     2     3+2n                            request length
     4     DRAWABLE                        drawable
     4     GCONTEXT                        gc
     8n     LISTofSEGMENT                  segments

  SEGMENT
     2     INT16                           x1
     2     INT16                           y1
     2     INT16                           x2
     2     INT16                           y2

<a class="link" href="#requests:PolyRectangle" title="PolyRectangle"><span class="bold"><strong>PolyRectangle</strong></span></a>
     1     67                              opcode
     1                                     unused
     2     3+2n                            request length
     4     DRAWABLE                        drawable
     4     GCONTEXT                        gc
     8n     LISTofRECTANGLE                rectangles

<a class="link" href="#requests:PolyArc" title="PolyArc"><span class="bold"><strong>PolyArc</strong></span></a>
     1     68                              opcode
     1                                     unused
     2     3+3n                            request length
     4     DRAWABLE                        drawable
     4     GCONTEXT                        gc
     12n     LISTofARC                     arcs

<a class="link" href="#requests:FillPoly" title="FillPoly"><span class="bold"><strong>FillPoly</strong></span></a>
     1     69                              opcode
     1                                     unused
     2     4+n                             request length
     4     DRAWABLE                        drawable
     4     GCONTEXT                        gc
     1                                     shape
          0     Complex
          1     Nonconvex
          2     Convex
     1                                     coordinate-mode
          0     Origin
          1     Previous
     2                                     unused
     4n     LISTofPOINT                    points

<a class="link" href="#requests:PolyFillRectangle" title="PolyFillRectangle"><span class="bold"><strong>PolyFillRectangle</strong></span></a>
     1     70                              opcode
     1                                     unused
     2     3+2n                            request length
     4     DRAWABLE                        drawable
     4     GCONTEXT                        gc
     8n     LISTofRECTANGLE                rectangles

<a class="link" href="#requests:PolyFillArc" title="PolyFillArc"><span class="bold"><strong>PolyFillArc</strong></span></a>
     1     71                              opcode
     1                                     unused
     2     3+3n                            request length
     4     DRAWABLE                        drawable
     4     GCONTEXT                        gc
     12n     LISTofARC                     arcs

<a class="link" href="#requests:PutImage" title="PutImage"><span class="bold"><strong>PutImage</strong></span></a>
     1     72                              opcode
     1                                     format
          0     Bitmap
          1     XYPixmap
          2     ZPixmap
     2     6+(n+p)/4                       request length
     4     DRAWABLE                        drawable
     4     GCONTEXT                        gc
     2     CARD16                          width
     2     CARD16                          height
     2     INT16                           dst-x
     2     INT16                           dst-y
     1     CARD8                           left-pad
     1     CARD8                           depth
     2                                     unused
     n     LISTofBYTE                      data
     p                                     unused, p=pad(n)

<a class="link" href="#requests:GetImage" title="GetImage"><span class="bold"><strong>GetImage</strong></span></a>
     1     73                              opcode
     1                                     format
          1     XYPixmap
          2     ZPixmap
     2     5                               request length
     4     DRAWABLE                        drawable
     2     INT16                           x
     2     INT16                           y
     2     CARD16                          width
     2     CARD16                          height
     4     CARD32                          plane-mask

▶
     1     1                               Reply
     1     CARD8                           depth
     2     CARD16                          sequence number
     4     (n+p)/4                         reply length
     4     VISUALID                        visual
          0     None
     20                                    unused
     n     LISTofBYTE                      data
     p                                     unused, p=pad(n)

<a class="link" href="#requests:PolyText8" title="PolyText8"><span class="bold"><strong>PolyText8</strong></span></a>
     1     74                              opcode
     1                                     unused
     2     4+(n+p)/4                       request length
     4     DRAWABLE                        drawable
     4     GCONTEXT                        gc
     2     INT16                           x
     2     INT16                           y
     n     LISTofTEXTITEM8                 items
     p                                     unused, p=pad(n)  (p is always 0
                                           or 1)

  TEXTITEM8
     1     m                               length of string (cannot be 255)
     1     INT8                            delta
     m     STRING8                         string
  or
     1     255                             font-shift indicator
     1                                     font byte 3 (most-significant)
     1                                     font byte 2
     1                                     font byte 1
     1                                     font byte 0 (least-significant)

<a class="link" href="#requests:PolyText16" title="PolyText16"><span class="bold"><strong>PolyText16</strong></span></a>
     1     75                              opcode
     1                                     unused
     2     4+(n+p)/4                       request length
     4     DRAWABLE                        drawable
     4     GCONTEXT                        gc
     2     INT16                           x
     2     INT16                           y
     n     LISTofTEXTITEM16                items
     p                                     unused, p=pad(n)  (p must be 0 or
                                           1)

  TEXTITEM16
     1     m                               number of CHAR2Bs in string
                                           (cannot be 255)
     1     INT8                            delta
     2m     STRING16                       string
  or
     1     255                             font-shift indicator
     1                                     font byte 3 (most-significant)
     1                                     font byte 2
     1                                     font byte 1
     1                                     font byte 0 (least-significant)

<a class="link" href="#requests:ImageText8" title="ImageText8"><span class="bold"><strong>ImageText8</strong></span></a>
     1     76                              opcode
     1     n                               length of string
     2     4+(n+p)/4                       request length
     4     DRAWABLE                        drawable
     4     GCONTEXT                        gc
     2     INT16                           x
     2     INT16                           y
     n     STRING8                         string
     p                                     unused, p=pad(n)

<a class="link" href="#requests:ImageText16" title="ImageText16"><span class="bold"><strong>ImageText16</strong></span></a>
     1     77                              opcode
     1     n                               number of CHAR2Bs in string
     2     4+(2n+p)/4                      request length
     4     DRAWABLE                        drawable
     4     GCONTEXT                        gc
     2     INT16                           x
     2     INT16                           y
     2n     STRING16                       string
     p                                     unused, p=pad(2n)

<a class="link" href="#requests:CreateColormap" title="CreateColormap"><span class="bold"><strong>CreateColormap</strong></span></a>
     1     78                              opcode
     1                                     alloc
          0     None
          1     All
     2     4                               request length
     4     COLORMAP                        mid
     4     WINDOW                          window
     4     VISUALID                        visual

<a class="link" href="#requests:FreeColormap" title="FreeColormap"><span class="bold"><strong>FreeColormap</strong></span></a>
     1     79                              opcode
     1                                     unused
     2     2                               request length
     4     COLORMAP                        cmap

<a class="link" href="#requests:CopyColormapAndFree" title="CopyColormapAndFree"><span class="bold"><strong>CopyColormapAndFree</strong></span></a>
     1     80                              opcode
     1                                     unused
     2     3                               request length
     4     COLORMAP                        mid
     4     COLORMAP                        src-cmap

<a class="link" href="#requests:InstallColormap" title="InstallColormap"><span class="bold"><strong>InstallColormap</strong></span></a>
     1     81                              opcode
     1                                     unused
     2     2                               request length
     4     COLORMAP                        cmap

<a class="link" href="#requests:UninstallColormap" title="UninstallColormap"><span class="bold"><strong>UninstallColormap</strong></span></a>
     1     82                              opcode
     1                                     unused
     2     2                               request length
     4     COLORMAP                        cmap

<a class="link" href="#requests:ListInstalledColormaps" title="ListInstalledColormaps"><span class="bold"><strong>ListInstalledColormaps</strong></span></a>
     1     83                              opcode
     1                                     unused
     2     2                               request length
     4     WINDOW                          window

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     n                               reply length
     2     n                               number of COLORMAPs in cmaps
     22                                    unused
     4n     LISTofCOLORMAP                 cmaps

<a class="link" href="#requests:AllocColor" title="AllocColor"><span class="bold"><strong>AllocColor</strong></span></a>
     1     84                              opcode
     1                                     unused
     2     4                               request length
     4     COLORMAP                        cmap
     2     CARD16                          red
     2     CARD16                          green
     2     CARD16                          blue
     2                                     unused

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     0                               reply length
     2     CARD16                          red
     2     CARD16                          green
     2     CARD16                          blue
     2                                     unused
     4     CARD32                          pixel
     12                                    unused

<a class="link" href="#requests:AllocNamedColor" title="AllocNamedColor"><span class="bold"><strong>AllocNamedColor</strong></span></a>
     1     85                              opcode
     1                                     unused
     2     3+(n+p)/4                       request length
     4     COLORMAP                        cmap
     2     n                               length of name
     2                                     unused
     n     STRING8                         name
     p                                     unused, p=pad(n)

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     0                               reply length
     4     CARD32                          pixel
     2     CARD16                          exact-red
     2     CARD16                          exact-green
     2     CARD16                          exact-blue
     2     CARD16                          visual-red
     2     CARD16                          visual-green
     2     CARD16                          visual-blue
     8                                     unused

<a class="link" href="#requests:AllocColorCells" title="AllocColorCells"><span class="bold"><strong>AllocColorCells</strong></span></a>
     1     86                              opcode
     1     BOOL                            contiguous
     2     3                               request length
     4     COLORMAP                        cmap
     2     CARD16                          colors
     2     CARD16                          planes

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     n+m                             reply length
     2     n                               number of CARD32s in pixels
     2     m                               number of CARD32s in masks
     20                                    unused
     4n     LISTofCARD32                   pixels
     4m     LISTofCARD32                   masks

<a class="link" href="#requests:AllocColorPlanes" title="AllocColorPlanes"><span class="bold"><strong>AllocColorPlanes</strong></span></a>
     1     87                              opcode
     1     BOOL                            contiguous
     2     4                               request length
     4     COLORMAP                        cmap
     2     CARD16                          colors
     2     CARD16                          reds
     2     CARD16                          greens
     2     CARD16                          blues

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     n                               reply length
     2     n                               number of CARD32s in pixels
     2                                     unused
     4     CARD32                          red-mask
     4     CARD32                          green-mask
     4     CARD32                          blue-mask
     8                                     unused
     4n     LISTofCARD32                   pixels

<a class="link" href="#requests:FreeColors" title="FreeColors"><span class="bold"><strong>FreeColors</strong></span></a>
     1     88                              opcode
     1                                     unused
     2     3+n                             request length
     4     COLORMAP                        cmap
     4     CARD32                          plane-mask
     4n     LISTofCARD32                   pixels

<a class="link" href="#requests:StoreColors" title="StoreColors"><span class="bold"><strong>StoreColors</strong></span></a>
     1     89                              opcode
     1                                     unused
     2     2+3n                            request length
     4     COLORMAP                        cmap
     12n     LISTofCOLORITEM               items

  COLORITEM
     4     CARD32                          pixel
     2     CARD16                          red
     2     CARD16                          green
     2     CARD16                          blue
     1                                     do-red, do-green, do-blue
          #x01     do-red (1 is True, 0 is False)
          #x02     do-green (1 is True, 0 is False)
          #x04     do-blue (1 is True, 0 is False)
          #xF8     unused
     1                                     unused

<a class="link" href="#requests:StoreNamedColor" title="StoreNamedColor"><span class="bold"><strong>StoreNamedColor</strong></span></a>
     1     90                              opcode
     1                                     do-red, do-green, do-blue
          #x01     do-red (1 is True, 0 is False)
          #x02     do-green (1 is True, 0 is False)
          #x04     do-blue (1 is True, 0 is False)
          #xF8     unused
     2     4+(n+p)/4                       request length
     4     COLORMAP                        cmap
     4     CARD32                          pixel
     2     n                               length of name
     2                                     unused
     n     STRING8                         name
     p                                     unused, p=pad(n)

<a class="link" href="#requests:QueryColors" title="QueryColors"><span class="bold"><strong>QueryColors</strong></span></a>
     1     91                              opcode
     1                                     unused
     2     2+n                             request length
     4     COLORMAP                        cmap
     4n     LISTofCARD32                   pixels

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     2n                              reply length
     2     n                               number of RGBs in colors
     22                                    unused
     8n     LISTofRGB                      colors

  RGB
     2     CARD16                          red
     2     CARD16                          green
     2     CARD16                          blue
     2                                     unused

<a class="link" href="#requests:LookupColor" title="LookupColor"><span class="bold"><strong>LookupColor</strong></span></a>
     1     92                              opcode
     1                                     unused
     2     3+(n+p)/4                       request length
     4     COLORMAP                        cmap
     2     n                               length of name
     2                                     unused
     n     STRING8                         name
     p                                     unused, p=pad(n)

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     0                               reply length
     2     CARD16                          exact-red
     2     CARD16                          exact-green
     2     CARD16                          exact-blue
     2     CARD16                          visual-red
     2     CARD16                          visual-green
     2     CARD16                          visual-blue
     12                                    unused

<a class="link" href="#requests:CreateCursor" title="CreateCursor"><span class="bold"><strong>CreateCursor</strong></span></a>
     1     93                              opcode
     1                                     unused
     2     8                               request length
     4     CURSOR                          cid
     4     PIXMAP                          source
     4     PIXMAP                          mask
          0     None
     2     CARD16                          fore-red
     2     CARD16                          fore-green
     2     CARD16                          fore-blue
     2     CARD16                          back-red
     2     CARD16                          back-green
     2     CARD16                          back-blue
     2     CARD16                          x
     2     CARD16                          y

<a class="link" href="#requests:CreateGlyphCursor" title="CreateGlyphCursor"><span class="bold"><strong>CreateGlyphCursor</strong></span></a>
     1     94                              opcode
     1                                     unused
     2     8                               request length
     4     CURSOR                          cid
     4     FONT                            source-font
     4     FONT                            mask-font
          0     None
     2     CARD16                          source-char
     2     CARD16                          mask-char
     2     CARD16                          fore-red
     2     CARD16                          fore-green
     2     CARD16                          fore-blue
     2     CARD16                          back-red
     2     CARD16                          back-green
     2     CARD16                          back-blue

<a class="link" href="#requests:FreeCursor" title="FreeCursor"><span class="bold"><strong>FreeCursor</strong></span></a>
     1     95                              opcode
     1                                     unused
     2     2                               request length
     4     CURSOR                          cursor

<a class="link" href="#requests:RecolorCursor" title="RecolorCursor"><span class="bold"><strong>RecolorCursor</strong></span></a>
     1     96                              opcode
     1                                     unused
     2     5                               request length
     4     CURSOR                          cursor
     2     CARD16                          fore-red
     2     CARD16                          fore-green
     2     CARD16                          fore-blue
     2     CARD16                          back-red
     2     CARD16                          back-green
     2     CARD16                          back-blue

<a class="link" href="#requests:QueryBestSize" title="QueryBestSize"><span class="bold"><strong>QueryBestSize</strong></span></a>
     1     97                              opcode
     1                                     class
          0     Cursor
          1     Tile
          2     Stipple
     2     3                               request length
     4     DRAWABLE                        drawable
     2     CARD16                          width
     2     CARD16                          height

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     0                               reply length
     2     CARD16                          width
     2     CARD16                          height
     20                                    unused

<a class="link" href="#requests:QueryExtension" title="QueryExtension"><span class="bold"><strong>QueryExtension</strong></span></a>
     1     98                              opcode
     1                                     unused
     2     2+(n+p)/4                       request length
     2     n                               length of name
     2                                     unused
     n     STRING8                         name
     p                                     unused, p=pad(n)

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     0                               reply length
     1     BOOL                            present
     1     CARD8                           major-opcode
     1     CARD8                           first-event
     1     CARD8                           first-error
     20                                    unused

<a class="link" href="#requests:ListExtensions" title="ListExtensions"><span class="bold"><strong>ListExtensions</strong></span></a>
     1     99                              opcode
     1                                     unused
     2     1                               request length

▶
     1     1                               Reply
     1     CARD8                           number of STRs in names
     2     CARD16                          sequence number
     4     (n+p)/4                         reply length
     24                                    unused
     n     LISTofSTR                       names
     p                                     unused, p=pad(n)

<a class="link" href="#requests:ChangeKeyboardMapping" title="ChangeKeyboardMapping"><span class="bold"><strong>ChangeKeyboardMapping</strong></span></a>
     1     100                             opcode
     1     n                               keycode-count
     2     2+nm                            request length
     1     KEYCODE                         first-keycode
     1     m                               keysyms-per-keycode
     2                                     unused
     4nm     LISTofKEYSYM                  keysyms

<a class="link" href="#requests:GetKeyboardMapping" title="GetKeyboardMapping"><span class="bold"><strong>GetKeyboardMapping</strong></span></a>
     1     101                             opcode
     1                                     unused
     2     2                               request length
     1     KEYCODE                         first-keycode
     1     m                               count
     2                                     unused

▶
     1     1                               Reply
     1     n                               keysyms-per-keycode
     2     CARD16                          sequence number
     4     nm                              reply length (m = count field
                                           from the request)
     24                                    unused
     4nm     LISTofKEYSYM                  keysyms

<a class="link" href="#requests:ChangeKeyboardControl" title="ChangeKeyboardControl"><span class="bold"><strong>ChangeKeyboardControl</strong></span></a>
     1     102                             opcode
     1                                     unused
     2     2+n                             request length
     4     BITMASK                         value-mask (has n bits set to 1)
          #x0001     key-click-percent
          #x0002     bell-percent
          #x0004     bell-pitch
          #x0008     bell-duration
          #x0010     led
          #x0020     led-mode
          #x0040     key
          #x0080     auto-repeat-mode
     4n     LISTofVALUE                    value-list

  VALUEs
     1     INT8                            key-click-percent
     1     INT8                            bell-percent
     2     INT16                           bell-pitch
     2     INT16                           bell-duration
     1     CARD8                           led
     1                                     led-mode
          0     Off
          1     On
     1     KEYCODE                         key
     1                                     auto-repeat-mode
          0     Off
          1     On
          2     Default

<a class="link" href="#requests:GetKeyboardControl" title="GetKeyboardControl"><span class="bold"><strong>GetKeyboardControl</strong></span></a>
     1     103                             opcode
     1                                     unused
     2     1                               request length

▶
     1     1                               Reply
     1                                     global-auto-repeat
          0     Off
          1     On
     2     CARD16                          sequence number
     4     5                               reply length
     4     CARD32                          led-mask
     1     CARD8                           key-click-percent
     1     CARD8                           bell-percent
     2     CARD16                          bell-pitch
     2     CARD16                          bell-duration
     2                                     unused
     32     LISTofCARD8                    auto-repeats

<a class="link" href="#requests:Bell" title="Bell"><span class="bold"><strong>Bell</strong></span></a>
     1     104                             opcode
     1     INT8                            percent
     2     1                               request length

<a class="link" href="#requests:ChangePointerControl" title="ChangePointerControl"><span class="bold"><strong>ChangePointerControl</strong></span></a>
     1     105                             opcode
     1                                     unused
     2     3                               request length
     2     INT16                           acceleration-numerator
     2     INT16                           acceleration-denominator
     2     INT16                           threshold
     1     BOOL                            do-acceleration
     1     BOOL                            do-threshold

<a class="link" href="#requests:GetPointerControl" title="GetPointerControl"><span class="bold"><strong>GetPointerControl</strong></span></a>
     1     106                             opcode
     1                                     unused
     2     1                               request length

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     0                               reply length
     2     CARD16                          acceleration-numerator
     2     CARD16                          acceleration-denominator
     2     CARD16                          threshold
     18                                    unused

<a class="link" href="#requests:SetScreenSaver" title="SetScreenSaver"><span class="bold"><strong>SetScreenSaver</strong></span></a>
     1     107                             opcode
     1                                     unused
     2     3                               request length
     2     INT16                           timeout
     2     INT16                           interval
     1                                     prefer-blanking
          0     No
          1     Yes
          2     Default
     1                                     allow-exposures
          0     No
          1     Yes
          2     Default
     2                                     unused

<a class="link" href="#requests:GetScreenSaver" title="GetScreenSaver"><span class="bold"><strong>GetScreenSaver</strong></span></a>
     1     108                             opcode
     1                                     unused
     2     1                               request length

▶
     1     1                               Reply
     1                                     unused
     2     CARD16                          sequence number
     4     0                               reply length
     2     CARD16                          timeout
     2     CARD16                          interval
     1                                     prefer-blanking
          0     No
          1     Yes
     1                                     allow-exposures
          0     No
          1     Yes
     18                                    unused

<a class="link" href="#requests:ChangeHosts" title="ChangeHosts"><span class="bold"><strong>ChangeHosts</strong></span></a>
     1     109                             opcode
     1                                     mode
          0     Insert
          1     Delete
     2     2+(n+p)/4                       request length
     1                                     family
          0     Internet
          1     DECnet
          2     Chaos
     1                                     unused
     2     n                               length of address
     n     LISTofCARD8                     address
     p                                     unused, p=pad(n)

<a class="link" href="#requests:ListHosts" title="ListHosts"><span class="bold"><strong>ListHosts</strong></span></a>
     1     110                             opcode
     1                                     unused
     2     1                               request length

▶
     1     1                               Reply
     1                                     mode
          0     Disabled
          1     Enabled
     2     CARD16                          sequence number
     4     n/4                             reply length
     2     CARD16                          number of HOSTs in hosts
     22                                    unused
     n     LISTofHOST                      hosts (n always a multiple of 4)

<a class="link" href="#requests:SetAccessControl" title="SetAccessControl"><span class="bold"><strong>SetAccessControl</strong></span></a>
     1     111                             opcode
     1                                     mode
          0     Disable
          1     Enable
     2     1                               request length

<a class="link" href="#requests:SetCloseDownMode" title="SetCloseDownMode"><span class="bold"><strong>SetCloseDownMode</strong></span></a>
     1     112                             opcode
     1                                     mode
          0     Destroy
          1     RetainPermanent
          2     RetainTemporary
     2     1                               request length

<a class="link" href="#requests:KillClient" title="KillClient"><span class="bold"><strong>KillClient</strong></span></a>
     1     113                             opcode
     1                                     unused
     2     2                               request length
     4     CARD32                          resource
          0     AllTemporary

<a class="link" href="#requests:RotateProperties" title="RotateProperties"><span class="bold"><strong>RotateProperties</strong></span></a>
     1     114                             opcode
     1                                     unused
     2     3+n                             request length
     4     WINDOW                          window
     2     n                               number of properties
     2     INT16                           delta
     4n    LISTofATOM                      properties

<a class="link" href="#requests:ForceScreenSaver" title="ForceScreenSaver"><span class="bold"><strong>ForceScreenSaver</strong></span></a>
     1     115                             opcode
     1                                     mode
          0     Reset
          1     Activate
     2     1                               request length

<a class="link" href="#requests:SetPointerMapping" title="SetPointerMapping"><span class="bold"><strong>SetPointerMapping</strong></span></a>
     1     116                             opcode
     1     n                               length of map
     2     1+(n+p)/4                       request length
     n     LISTofCARD8                     map
     p                                     unused, p=pad(n)

▶
     1     1                               Reply
     1                                     status
          0     Success
          1     Busy
     2     CARD16                          sequence number
     4     0                               reply length
     24                                    unused

<a class="link" href="#requests:GetPointerMapping" title="GetPointerMapping"><span class="bold"><strong>GetPointerMapping</strong></span></a>
     1     117                             opcode
     1                                     unused
     2     1                               request length

▶
     1     1                               Reply
     1     n                               length of map
     2     CARD16                          sequence number
     4     (n+p)/4                         reply length
     24                                    unused
     n     LISTofCARD8                     map
     p                                     unused, p=pad(n)

<a class="link" href="#requests:SetModifierMapping" title="SetModifierMapping"><span class="bold"><strong>SetModifierMapping</strong></span></a>
     1     118                             opcode
     1     n                               keycodes-per-modifier
     2     1+2n                            request length
     8n    LISTofKEYCODE                   keycodes

▶
     1     1                               Reply
     1                                     status
          0     Success
          1     Busy
          2     Failed
     2     CARD16                          sequence number
     4     0                               reply length
     24                                    unused

<a class="link" href="#requests:GetModifierMapping" title="GetModifierMapping"><span class="bold"><strong>GetModifierMapping</strong></span></a>
     1     119                             opcode
     1                                     unused
     2     1                               request length

▶
     1     1                               Reply
     1     n                               keycodes-per-modifier
     2     CARD16                          sequence number
     4     2n                              reply length
     24                                    unused
     8n     LISTofKEYCODE                  keycodes

<a class="link" href="#requests:NoOperation" title="NoOperation"><span class="bold"><strong>NoOperation</strong></span></a>
     1     127                             opcode
     1                                     unused
     2     1+n                             request length
     4n                                    unused
</pre></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Encoding::Events"></a>Events</h2></div></div></div><a id="idp26140412" class="indexterm"></a><pre class="literallayout">
<a class="link" href="#events:KeyPress"><span class="bold"><strong>KeyPress</strong></span></a>
     1     2                               code
     1     KEYCODE                         detail
     2     CARD16                          sequence number
     4     TIMESTAMP                       time
     4     WINDOW                          root
     4     WINDOW                          event
     4     WINDOW                          child
          0     None
     2     INT16                           root-x
     2     INT16                           root-y
     2     INT16                           event-x
     2     INT16                           event-y
     2     SETofKEYBUTMASK                 state
     1     BOOL                            same-screen
     1                                     unused

<a class="link" href="#events:KeyRelease"><span class="bold"><strong>KeyRelease</strong></span></a>
     1     3                               code
     1     KEYCODE                         detail
     2     CARD16                          sequence number
     4     TIMESTAMP                       time
     4     WINDOW                          root
     4     WINDOW                          event
     4     WINDOW                          child
          0     None
     2     INT16                           root-x
     2     INT16                           root-y
     2     INT16                           event-x
     2     INT16                           event-y
     2     SETofKEYBUTMASK                 state
     1     BOOL                            same-screen
     1                                     unused

<a class="link" href="#events:ButtonPress"><span class="bold"><strong>ButtonPress</strong></span></a>
     1     4                               code
     1     BUTTON                          detail
     2     CARD16                          sequence number
     4     TIMESTAMP                       time
     4     WINDOW                          root
     4     WINDOW                          event
     4     WINDOW                          child
          0     None
     2     INT16                           root-x
     2     INT16                           root-y
     2     INT16                           event-x
     2     INT16                           event-y
     2     SETofKEYBUTMASK                 state
     1     BOOL                            same-screen
     1                                     unused

<a class="link" href="#events:ButtonRelease"><span class="bold"><strong>ButtonRelease</strong></span></a>
     1     5                               code
     1     BUTTON                          detail
     2     CARD16                          sequence number
     4     TIMESTAMP                       time
     4     WINDOW                          root
     4     WINDOW                          event
     4     WINDOW                          child
          0     None
     2     INT16                           root-x
     2     INT16                           root-y
     2     INT16                           event-x
     2     INT16                           event-y
     2     SETofKEYBUTMASK                 state
     1     BOOL                            same-screen
     1                                     unused

<a class="link" href="#events:MotionNotify"><span class="bold"><strong>MotionNotify</strong></span></a>
     1     6                               code
     1                                     detail
          0     Normal
          1     Hint
     2     CARD16                          sequence number
     4     TIMESTAMP                       time
     4     WINDOW                          root
     4     WINDOW                          event
     4     WINDOW                          child
           0     None
     2     INT16                           root-x
     2     INT16                           root-y
     2     INT16                           event-x
     2     INT16                           event-y
     2     SETofKEYBUTMASK                 state
     1     BOOL                            same-screen
     1                                     unused

<a class="link" href="#events:EnterNotify"><span class="bold"><strong>EnterNotify</strong></span></a>
     1     7                               code
     1                                     detail
          0     Ancestor
          1     Virtual
          2     Inferior
          3     Nonlinear
          4     NonlinearVirtual
     2     CARD16                          sequence number
     4     TIMESTAMP                       time
     4     WINDOW                          root
     4     WINDOW                          event
     4     WINDOW                          child
          0     None
     2     INT16                           root-x
     2     INT16                           root-y
     2     INT16                           event-x
     2     INT16                           event-y
     2     SETofKEYBUTMASK                 state
     1                                     mode
          0     Normal
          1     Grab
          2     Ungrab
     1                                     same-screen, focus
          #x01     focus (1 is True, 0 is False)
          #x02     same-screen (1 is True, 0 is False)
          #xFC     unused

<a class="link" href="#events:LeaveNotify"><span class="bold"><strong>LeaveNotify</strong></span></a>
     1     8                               code
     1                                     detail
          0     Ancestor
          1     Virtual
          2     Inferior
          3     Nonlinear
          4     NonlinearVirtual
     2     CARD16                          sequence number
     4     TIMESTAMP                       time
     4     WINDOW                          root
     4     WINDOW                          event
     4     WINDOW                          child
          0     None
     2     INT16                           root-x
     2     INT16                           root-y
     2     INT16                           event-x
     2     INT16                           event-y
     2     SETofKEYBUTMASK                 state
     1                                     mode
          0     Normal
          1     Grab
          2     Ungrab
     1                                     same-screen, focus
          #x01     focus (1 is True, 0 is False)
          #x02     same-screen (1 is True, 0 is False)
          #xFC     unused

<a class="link" href="#events:FocusIn"><span class="bold"><strong>FocusIn</strong></span></a>
     1     9                               code
     1                                     detail
          0     Ancestor
          1     Virtual
          2     Inferior
          3     Nonlinear
          4     NonlinearVirtual
          5     Pointer
          6     PointerRoot
          7     None
     2     CARD16                          sequence number
     4     WINDOW                          event
     1                                     mode
          0     Normal
          1     Grab
          2     Ungrab
          3     WhileGrabbed
     23                                    unused

<a class="link" href="#events:FocusOut"><span class="bold"><strong>FocusOut</strong></span></a>
     1     10                              code
     1                                     detail
          0     Ancestor
          1     Virtual
          2     Inferior
          3     Nonlinear
          4     NonlinearVirtual
          5     Pointer
          6     PointerRoot
          7     None
     2     CARD16                          sequence number
     4     WINDOW                          event
     1                                     mode
          0     Normal
          1     Grab
          2     Ungrab
          3     WhileGrabbed
     23                                    unused

<a class="link" href="#events:KeymapNotify" title="KeymapNotify"><span class="bold"><strong>KeymapNotify</strong></span></a>
     1     11                              code
     31    LISTofCARD8                     keys (byte for keycodes 0-7 is
                                           omitted)

<a class="link" href="#events:Expose" title="Expose"><span class="bold"><strong>Expose</strong></span></a>
     1     12                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          window
     2     CARD16                          x
     2     CARD16                          y
     2     CARD16                          width
     2     CARD16                          height
     2     CARD16                          count
     14                                    unused

<a class="link" href="#events:GraphicsExposure" title="GraphicsExposure"><span class="bold"><strong>GraphicsExposure</strong></span></a>
     1     13                              code
     1                                     unused
     2     CARD16                          sequence number
     4     DRAWABLE                        drawable
     2     CARD16                          x
     2     CARD16                          y
     2     CARD16                          width
     2     CARD16                          height
     2     CARD16                          minor-opcode
     2     CARD16                          count
     1     CARD8                           major-opcode
     11                                    unused

<a class="link" href="#events:NoExposure" title="NoExposure"><span class="bold"><strong>NoExposure</strong></span></a>
     1     14                              code
     1                                     unused
     2     CARD16                          sequence number
     4     DRAWABLE                        drawable
     2     CARD16                          minor-opcode
     1     CARD8                           major-opcode
     21                                    unused

<a class="link" href="#events:VisibilityNotify" title="VisibilityNotify"><span class="bold"><strong>VisibilityNotify</strong></span></a>
     1     15                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          window
     1                                     state
          0     Unobscured
          1     PartiallyObscured
          2     FullyObscured
     23                                    unused

<a class="link" href="#events:CreateNotify" title="CreateNotify"><span class="bold"><strong>CreateNotify</strong></span></a>
     1     16                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          parent
     4     WINDOW                          window
     2     INT16                           x
     2     INT16                           y
     2     CARD16                          width
     2     CARD16                          height
     2     CARD16                          border-width
     1     BOOL                            override-redirect
     9                                     unused

<a class="link" href="#events:DestroyNotify" title="DestroyNotify"><span class="bold"><strong>DestroyNotify</strong></span></a>
     1     17                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          event
     4     WINDOW                          window
     20                                    unused

<a class="link" href="#events:UnmapNotify" title="UnmapNotify"><span class="bold"><strong>UnmapNotify</strong></span></a>
     1     18                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          event
     4     WINDOW                          window
     1     BOOL                            from-configure
     19                                    unused

<a class="link" href="#events:MapNotify" title="MapNotify"><span class="bold"><strong>MapNotify</strong></span></a>
     1     19                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          event
     4     WINDOW                          window
     1     BOOL                            override-redirect
     19                                    unused

<a class="link" href="#events:MapRequest" title="MapRequest"><span class="bold"><strong>MapRequest</strong></span></a>
     1     20                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          parent
     4     WINDOW                          window
     20                                    unused

<a class="link" href="#events:ReparentNotify" title="ReparentNotify"><span class="bold"><strong>ReparentNotify</strong></span></a>
     1     21                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          event
     4     WINDOW                          window
     4     WINDOW                          parent
     2     INT16                           x
     2     INT16                           y
     1     BOOL                            override-redirect
     11                                    unused

<a class="link" href="#events:ConfigureNotify" title="ConfigureNotify"><span class="bold"><strong>ConfigureNotify</strong></span></a>
     1     22                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          event
     4     WINDOW                          window
     4     WINDOW                          above-sibling
          0     None
     2     INT16                           x
     2     INT16                           y
     2     CARD16                          width
     2     CARD16                          height
     2     CARD16                          border-width
     1     BOOL                            override-redirect
     5                                     unused

<a class="link" href="#events:ConfigureRequest" title="ConfigureRequest"><span class="bold"><strong>ConfigureRequest</strong></span></a>
     1     23                              code
     1                                     stack-mode
          0     Above
          1     Below
          2     TopIf
          3     BottomIf
          4     Opposite
     2     CARD16                          sequence number
     4     WINDOW                          parent
     4     WINDOW                          window
     4     WINDOW                          sibling
          0     None
     2     INT16                           x
     2     INT16                           y
     2     CARD16                          width
     2     CARD16                          height
     2     CARD16                          border-width
     2     BITMASK                         value-mask
          #x0001     x
          #x0002     y
          #x0004     width
          #x0008     height
          #x0010     border-width
          #x0020     sibling
          #x0040     stack-mode
     4                                     unused

<a class="link" href="#events:GravityNotify" title="GravityNotify"><span class="bold"><strong>GravityNotify</strong></span></a>
     1     24                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          event
     4     WINDOW                          window
     2     INT16                           x
     2     INT16                           y
     16                                    unused

<a class="link" href="#events:ResizeRequest" title="ResizeRequest"><span class="bold"><strong>ResizeRequest</strong></span></a>
     1     25                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          window
     2     CARD16                          width
     2     CARD16                          height
     20                                    unused

<a class="link" href="#events:CirculateNotify" title="CirculateNotify"><span class="bold"><strong>CirculateNotify</strong></span></a>
     1     26                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          event
     4     WINDOW                          window
     4     WINDOW                          unused
     1                                     place
          0     Top
          1     Bottom
     15                                    unused

<a class="link" href="#events:CirculateRequest" title="CirculateRequest"><span class="bold"><strong>CirculateRequest</strong></span></a>
     1     27                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          parent
     4     WINDOW                          window
     4                                     unused
     1                                     place
          0     Top
          1     Bottom
     15                                    unused

<a class="link" href="#events:PropertyNotify" title="PropertyNotify"><span class="bold"><strong>PropertyNotify</strong></span></a>
     1     28                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          window
     4     ATOM                            atom
     4     TIMESTAMP                       time
     1                                     state
          0     NewValue
          1     Deleted
     15                                    unused

<a class="link" href="#events:SelectionClear" title="SelectionClear"><span class="bold"><strong>SelectionClear</strong></span></a>
     1     29                              code
     1                                     unused
     2     CARD16                          sequence number
     4     TIMESTAMP                       time
     4     WINDOW                          owner
     4     ATOM                            selection
     16                                    unused

<a class="link" href="#events:SelectionRequest" title="SelectionRequest"><span class="bold"><strong>SelectionRequest</strong></span></a>
     1     30                              code
     1                                     unused
     2     CARD16                          sequence number
     4     TIMESTAMP                       time
          0     CurrentTime
     4     WINDOW                          owner
     4     WINDOW                          requestor
     4     ATOM                            selection
     4     ATOM                            target
     4     ATOM                            property
          0     None
     4                                     unused

<a class="link" href="#events:SelectionNotify" title="SelectionNotify"><span class="bold"><strong>SelectionNotify</strong></span></a>
     1     31                              code
     1                                     unused
     2     CARD16                          sequence number
     4     TIMESTAMP                       time
          0     CurrentTime
     4     WINDOW                          requestor
     4     ATOM                            selection
     4     ATOM                            target
     4     ATOM                            property
          0     None
     8                                     unused

<a class="link" href="#events:ColormapNotify" title="ColormapNotify"><span class="bold"><strong>ColormapNotify</strong></span></a>
     1     32                              code
     1                                     unused
     2     CARD16                          sequence number
     4     WINDOW                          window
     4     COLORMAP                        colormap
          0     None
     1     BOOL                            new
     1                                     state
          0     Uninstalled
          1     Installed
     18                                    unused

<a class="link" href="#events:ClientMessage" title="ClientMessage"><span class="bold"><strong>ClientMessage</strong></span></a>
     1     33                              code
     1     CARD8                           format
     2     CARD16                          sequence number
     4     WINDOW                          window
     4     ATOM                            type
     20                                    data

<a class="link" href="#events:MappingNotify" title="MappingNotify"><span class="bold"><strong>MappingNotify</strong></span></a>
     1     34                              code
     1                                     unused
     2     CARD16                          sequence number
     1                                     request
          0     Modifier
          1     Keyboard
          2     Pointer
     1     KEYCODE                         first-keycode
     1     CARD8                           count
     25                                    unused
</pre></div></div><div class="glossary"><div class="titlepage"><div><div><h1 class="title"><a id="glossary"></a>Glossary</h1></div></div></div><dl><dt><a id="glossary:Access_control_list"></a><span class="glossterm">Access control list</span></dt><a id="idp23126732" class="indexterm"></a><dd class="glossdef"><p>
X maintains a list of hosts from which client programs can be run.
By default,
only programs on the local host and hosts specified in an initial list read
by the server can use the display.
Clients on the local host can change this access control list.
Some server implementations can also implement other authorization mechanisms
in addition to or in place of this mechanism.
The action of this mechanism can be conditional based on the authorization
protocol name and data received by the server at connection setup.

    </p></dd><dt><a id="glossary:Active_grab"></a><span class="glossterm">Active grab</span></dt><a id="idp23135564" class="indexterm"></a><dd class="glossdef"><p>
A grab is active when the pointer or keyboard is actually owned by
the single grabbing client.

    </p></dd><dt><a id="glossary:Ancestors"></a><span class="glossterm">Ancestors</span></dt><a id="idp23137396" class="indexterm"></a><dd class="glossdef"><p>
If W is an <a class="glossterm" href="#glossary:Inferiors"><em class="glossterm">inferior</em></a> of A, then A is an ancestor of W.

    </p></dd><dt><a id="glossary:Atom"></a><span class="glossterm">Atom</span></dt><a id="idp23139524" class="indexterm"></a><dd class="glossdef"><p>
An atom is a unique ID corresponding to a string name.
Atoms are used to identify properties, types, and selections.

    </p></dd><dt><a id="glossary:Background"></a><span class="glossterm">Background</span></dt><a id="idp21343244" class="indexterm"></a><dd class="glossdef"><p>
An
<a class="glossterm" href="#glossary:InputOutput_window"><em class="glossterm"><span class="bold"><strong>InputOutput</strong></span></em></a>
window can have a background, which is defined as a pixmap.
When regions of the window have their contents lost or invalidated,
the server will automatically tile those regions with the background.

    </p></dd><dt><a id="glossary:Backing_store"></a><span class="glossterm">Backing store</span></dt><a id="idp21345732" class="indexterm"></a><dd class="glossdef"><p>
When a server maintains the contents of a window,
the pixels saved off screen are known as a backing store.

    </p></dd><dt><a id="glossary:Bit_gravity"></a><span class="glossterm">Bit gravity</span></dt><a id="idp21347564" class="indexterm"></a><dd class="glossdef"><p>
When a window is resized,
the contents of the window are not necessarily discarded.
It is possible to request that the server relocate the previous contents
to some region of the window (though no guarantees are made).
This attraction of window contents for some location of
a window is known as bit gravity.

    </p></dd><dt><a id="glossary:Bit_plane"></a><span class="glossterm">Bit plane</span></dt><a id="idp21349756" class="indexterm"></a><dd class="glossdef"><p>
When a pixmap or window is thought of as a stack of bitmaps,
each bitmap is called a bit plane or plane.

    </p></dd><dt><a id="glossary:Bitmap"></a><span class="glossterm">Bitmap</span></dt><a id="idp26495748" class="indexterm"></a><dd class="glossdef"><p>
A bitmap is a <a class="glossterm" href="#glossary:Pixmap"><em class="glossterm">pixmap</em></a> of depth one.

    </p></dd><dt><a id="glossary:Border"></a><span class="glossterm">Border</span></dt><a id="idp26497900" class="indexterm"></a><dd class="glossdef"><p>
An
<a class="glossterm" href="#glossary:InputOutput_window"><em class="glossterm"><span class="bold"><strong>InputOutput</strong></span></em></a>
window can have a border of equal thickness on all four sides of the window.
A pixmap defines the contents of the border,
and the server automatically maintains the contents of the border.
Exposure events are never generated for border regions.

    </p></dd><dt><a id="glossary:Button_grabbing"></a><span class="glossterm">Button grabbing</span></dt><a id="idp26500436" class="indexterm"></a><dd class="glossdef"><p>
Buttons on the pointer may be passively grabbed by a client.
When the button is pressed,
the pointer is then actively grabbed by the client.

    </p></dd><dt><a id="glossary:Byte_order"></a><span class="glossterm">Byte order</span></dt><a id="idp26502460" class="indexterm"></a><dd class="glossdef"><p>
For image (pixmap/bitmap) data,
the server defines the byte order,
and clients with different native byte ordering must swap bytes as necessary.
For all other parts of the protocol,
the client defines the byte order,
and the server swaps bytes as necessary.

    </p></dd><dt><a id="glossary:Children"></a><span class="glossterm">Children</span></dt><a id="idp23095580" class="indexterm"></a><a id="idp23096148" class="indexterm"></a><dd class="glossdef"><p>
The children of a window are its first-level subwindows.

    </p></dd><dt><a id="glossary:Client"></a><span class="glossterm">Client</span></dt><a id="idp23098108" class="indexterm"></a><dd class="glossdef"><p>
An application program connects to the window system server by some
interprocess communication path, such as a TCP connection or a
shared memory buffer.
This program is referred to as a client of the window system server.
More precisely,
the client is the communication path itself;
a program with multiple paths open to the server is viewed as
multiple clients by the protocol.
Resource lifetimes are controlled by connection lifetimes,
not by program lifetimes.

    </p></dd><dt><a id="glossary:Clipping_region"></a><span class="glossterm">Clipping region</span></dt><a id="idp23100316" class="indexterm"></a><dd class="glossdef"><p>
In a <a class="glossterm" href="#glossary:Graphics_context"><em class="glossterm">graphics context</em></a>,
a bitmap or list of rectangles can be specified
to restrict output to a particular region of the window.
The image defined by the bitmap or rectangles is called a clipping region.

    </p></dd><dt><a id="glossary:Colormap"></a><span class="glossterm">Colormap</span></dt><a id="idp23102596" class="indexterm"></a><dd class="glossdef"><p>
A colormap consists of a set of entries defining color values.
The colormap associated with a window is used to display the contents of
the window; each pixel value indexes the colormap to produce RGB values
that drive the guns of a monitor.
Depending on hardware limitations,
one or more colormaps may be installed at one time,
so that windows associated with those maps display with correct colors.

    </p></dd><dt><a id="glossary:Connection"></a><span class="glossterm">Connection</span></dt><a id="idp23104756" class="indexterm"></a><dd class="glossdef"><p>
The interprocess communication path between the server and client
program is known as a connection.
A client program typically (but not necessarily) has one
connection to the server over which requests and events are sent.

    </p></dd><dt><a id="glossary:Containment"></a><span class="glossterm">Containment</span></dt><a id="idp23106716" class="indexterm"></a><dd class="glossdef"><p>
A window <span class="quote">“<span class="quote">contains</span>”</span> the pointer if the window is viewable and the
<a class="glossterm" href="#glossary:Hotspot"><em class="glossterm">hotspot</em></a> of the cursor is
within a visible region of the window or a
visible region of one of its inferiors.
The border of the window is included as part of the window for containment.
The pointer is <span class="quote">“<span class="quote">in</span>”</span> a window if the window contains the pointer
but no inferior contains the pointer.

    </p></dd><dt><a id="glossary:Coordinate_system"></a><span class="glossterm">Coordinate system</span></dt><a id="idp23109556" class="indexterm"></a><dd class="glossdef"><p>
The coordinate system has the X axis horizontal and the Y axis vertical,
with the origin [0, 0] at the upper left.
Coordinates are integral,
in terms of pixels,
and coincide with pixel centers.
Each window and pixmap has its own coordinate system.
For a window,
the origin is inside the border at the inside upper left.

    </p></dd><dt><a id="glossary:Cursor"></a><span class="glossterm">Cursor</span></dt><a id="idp26554748" class="indexterm"></a><dd class="glossdef"><p>
A cursor is the visible shape of the pointer on a screen.
It consists of a <a class="glossterm" href="#glossary:Hotspot"><em class="glossterm">hotspot</em></a>,
a source bitmap, a shape bitmap, and a pair of colors.
The cursor defined for a window controls the visible appearance
when the pointer is in that window.

    </p></dd><dt><a id="glossary:Depth"></a><span class="glossterm">Depth</span></dt><a id="idp26557108" class="indexterm"></a><dd class="glossdef"><p>
The depth of a window or pixmap is the number of bits per pixel that it has.
The depth of a graphics context is the depth of the drawables it can be
used in conjunction with for graphics output.

    </p></dd><dt><a id="glossary:Device"></a><span class="glossterm">Device</span></dt><a id="idp26559068" class="indexterm"></a><dd class="glossdef"><p>
Keyboards, mice, tablets, track-balls, button boxes, and so on are all
collectively known as input devices.
The core protocol only deals with two devices,
<span class="quote">“<span class="quote">the keyboard</span>”</span> and <span class="quote">“<span class="quote">the pointer.</span>”</span>

    </p></dd><dt><a id="glossary:DirectColor"></a><span class="glossterm">DirectColor</span></dt><a id="idp26561428" class="indexterm"></a><dd class="glossdef"><p>
<span class="bold"><strong>DirectColor</strong></span>
is a class of colormap in which a pixel value is decomposed into three
separate subfields for indexing.
The first subfield indexes an array to produce red intensity values.
The second subfield indexes a second array to produce blue intensity values.
The third subfield indexes a third array to produce green intensity values.
The RGB values can be changed dynamically.

    </p></dd><dt><a id="glossary:Display"></a><span class="glossterm">Display</span></dt><a id="idp26563892" class="indexterm"></a><dd class="glossdef"><p>
A server, together with its screens and input devices, is called a display.

    </p></dd><dt><a id="glossary:Drawable"></a><span class="glossterm">Drawable</span></dt><a id="idp26565732" class="indexterm"></a><dd class="glossdef"><p>
Both windows and pixmaps can be used as sources and destinations in
graphics operations.
These windows and pixmaps are collectively known as drawables.
However, an
<a class="glossterm" href="#glossary:InputOnly_window"><em class="glossterm"><span class="bold"><strong>InputOnly</strong></span></em></a>
window cannot be used as a source or destination in a graphics operation.

    </p></dd><dt><a id="glossary:Event"></a><span class="glossterm">Event</span></dt><a id="idp26568268" class="indexterm"></a><dd class="glossdef"><p>
Clients are informed of information asynchronously by means of events.
These events can be generated either asynchronously from devices
or as side effects of client requests.
Events are grouped into types.
The server never sends events to a client unless the
client has specificially asked to be informed of that type of event.
However, other clients can force events to be sent to other clients.
Events are typically reported relative to a window.

    </p></dd><dt><a id="glossary:Event_mask"></a><span class="glossterm">Event mask</span></dt><a id="idp26570476" class="indexterm"></a><dd class="glossdef"><p>
Events are requested relative to a window.
The set of event types that a client requests relative to a window
is described by using an event mask.

    </p></dd><dt><a id="glossary:Event_synchronization"></a><span class="glossterm">Event synchronization</span></dt><a id="idp26572492" class="indexterm"></a><dd class="glossdef"><p>
There are certain race conditions possible when demultiplexing device
events to clients (in particular deciding where pointer and keyboard
events should be sent when in the middle of window management
operations).
The event synchronization mechanism allows synchronous processing
of device events.

    </p></dd><dt><a id="glossary:Event_propagation"></a><span class="glossterm">Event propagation</span></dt><a id="idp26574700" class="indexterm"></a><dd class="glossdef"><p>
Device-related events propagate from the source window to ancestor
windows until some client has expressed interest in handling that type
of event or until the event is discarded explicitly.

    </p></dd><dt><a id="glossary:Event_source"></a><span class="glossterm">Event source</span></dt><a id="idp26576756" class="indexterm"></a><dd class="glossdef"><p>
The window the pointer is in is the source of a device-related
event.

    </p></dd><dt><a id="glossary:Exposure_event"></a><span class="glossterm">Exposure event</span></dt><a id="idp26578692" class="indexterm"></a><dd class="glossdef"><p>
Servers do not guarantee to preserve the contents of windows when
windows are obscured or reconfigured.
Exposure events are sent to clients to inform them when contents
of regions of windows have been lost.

    </p></dd><dt><a id="glossary:Extension"></a><span class="glossterm">Extension</span></dt><a id="idp26580780" class="indexterm"></a><dd class="glossdef"><p>
Named extensions to the core protocol can be defined to extend the
system.
Extension to output requests, resources, and event types are
all possible and are expected.

    </p></dd><dt><a id="glossary:Focus_window"></a><span class="glossterm">Focus window</span></dt><a id="idp26582692" class="indexterm"></a><dd class="glossdef"><p>
The focus window is another term for the <a class="glossterm" href="#glossary:Input_focus"><em class="glossterm">input focus</em></a>.

    </p></dd><dt><a id="glossary:Font"></a><span class="glossterm">Font</span></dt><a id="idp26584772" class="indexterm"></a><dd class="glossdef"><p>
A font is a matrix of glyphs (typically characters).
The protocol does no translation or interpretation of character sets.
The client simply indicates values used to index the glyph array.
A font contains additional metric information to determine interglyph
and interline spacing.

    </p></dd><dt><a id="glossary:GC"></a><span class="glossterm">GC, GContext</span></dt><a id="idp26178412" class="indexterm"></a><a id="idp26179124" class="indexterm"></a><dd class="glossdef"><p>
GC and gcontext are abbreviations for <a class="glossterm" href="#glossary:Graphics_context"><em class="glossterm">graphics context</em></a>.

    </p></dd><dt><a id="glossary:Glyph"></a><span class="glossterm">Glyph</span></dt><a id="idp26181372" class="indexterm"></a><dd class="glossdef"><p>
A glyph is an image, typically of a character, in a font.

    </p></dd><dt><a id="glossary:Grab"></a><span class="glossterm">Grab</span></dt><a id="idp26183188" class="indexterm"></a><dd class="glossdef"><p>
Keyboard keys, the keyboard, pointer buttons, the pointer, and the
server can be grabbed for exclusive use by a client.
In general,
these facilities are not intended to be used by normal applications
but are intended for various input and window managers to implement
various styles of user interfaces.

    </p></dd><dt><a id="glossary:Graphics_context"></a><span class="glossterm">Graphics context</span></dt><a id="idp26185532" class="indexterm"></a><dd class="glossdef"><p>
Various information for graphics output is stored in a graphics context
such as foreground pixel, background pixel, line width,
<a class="glossterm" href="#glossary:Clipping_region"><em class="glossterm">clipping region</em></a>,
and so on.
A graphics context can only be used with drawables that have the same root
and the same depth as the graphics context.

    </p></dd><dt><a id="glossary:Gravity"></a><span class="glossterm">Gravity</span></dt><a id="idp26187884" class="indexterm"></a><dd class="glossdef"><p>
See <a class="glossterm" href="#glossary:Bit_gravity"><em class="glossterm">bit gravity</em></a>
and <a class="glossterm" href="#glossary:Window_gravity"><em class="glossterm">window gravity</em></a>.

    </p></dd><dt><a id="glossary:GrayScale"></a><span class="glossterm">GrayScale</span></dt><a id="idp26190348" class="indexterm"></a><dd class="glossdef"><p>
<span class="bold"><strong>GrayScale</strong></span>
can be viewed as a degenerate case of
<a class="glossterm" href="#glossary:PseudoColor"><em class="glossterm"><span class="bold"><strong>PseudoColor</strong></span></em></a>,
in which the red, green, and blue values in any given colormap entry are equal,
thus producing shades of gray.
The gray values can be changed dynamically.

    </p></dd><dt><a id="glossary:Hotspot"></a><span class="glossterm">Hotspot</span></dt><a id="idp26193156" class="indexterm"></a><dd class="glossdef"><p>
A cursor has an associated hotspot that defines the point in the
cursor corresponding to the coordinates reported for the pointer.

    </p></dd><dt><a id="glossary:Identifier"></a><span class="glossterm">Identifier</span></dt><a id="idp26195052" class="indexterm"></a><dd class="glossdef"><p>
An identifier is a unique value associated with a resource that clients use
to name that resource.
The identifier can be used over any connection.

    </p></dd><dt><a id="glossary:Inferiors"></a><span class="glossterm">Inferiors</span></dt><a id="idp26196964" class="indexterm"></a><dd class="glossdef"><p>
The inferiors of a window are all of the subwindows nested below it:
the children, the children's children, and so on.

    </p></dd><dt><a id="glossary:Input_focus"></a><span class="glossterm">Input focus</span></dt><a id="idp26198820" class="indexterm"></a><dd class="glossdef"><p>
The input focus is normally a window defining the scope for
processing of keyboard input.
If a generated keyboard event would normally be reported to this window
or one of its inferiors,
the event is reported normally.
Otherwise, the event is reported with respect to
the focus window.
The input focus also can be set such that all
keyboard events are discarded and such that the focus
window is dynamically taken to be the root window of whatever screen
the pointer is on at each keyboard event.

    </p></dd><dt><a id="glossary:Input_manager"></a><span class="glossterm">Input manager</span></dt><a id="idp26201036" class="indexterm"></a><dd class="glossdef"><p>
Control over keyboard input is typically provided by an input manager client.

    </p></dd><dt><a id="glossary:InputOnly_window"></a><span class="glossterm">InputOnly window</span></dt><a id="idp26202844" class="indexterm"></a><dd class="glossdef"><p>
An
<span class="bold"><strong>InputOnly</strong></span>
window is a window that cannot be used for graphics requests.
<span class="bold"><strong>InputOnly</strong></span>
windows are invisible and can be used to control such things
as cursors, input event generation, and grabbing.
<span class="bold"><strong>InputOnly</strong></span>
windows cannot have
<span class="bold"><strong>InputOutput</strong></span>
windows as inferiors.

    </p></dd><dt><a id="glossary:InputOutput_window"></a><span class="glossterm">InputOutput window</span></dt><a id="idp26206284" class="indexterm"></a><dd class="glossdef"><p>
An
<span class="bold"><strong>InputOutput</strong></span>
window is the normal kind of opaque window, used for both input and output.
<span class="bold"><strong>InputOutput</strong></span>
windows can have both
<span class="bold"><strong>InputOutput</strong></span>
and
<span class="bold"><strong>InputOnly</strong></span>
windows as inferiors.

    </p></dd><dt><a id="glossary:Key_grabbing"></a><span class="glossterm">Key grabbing</span></dt><a id="idp26209636" class="indexterm"></a><dd class="glossdef"><p>
Keys on the keyboard can be passively grabbed by a client.
When the key is pressed,
the keyboard is then actively grabbed by the client.

    </p></dd><dt><a id="glossary:Keyboard_grabbing"></a><span class="glossterm">Keyboard grabbing</span></dt><a id="idp26211636" class="indexterm"></a><dd class="glossdef"><p>
A client can actively grab control of the keyboard, and key events
will be sent to that client rather than the client the events would
normally have been sent to.

    </p></dd><dt><a id="glossary:Keysym"></a><span class="glossterm">Keysym</span></dt><a id="idp26213684" class="indexterm"></a><dd class="glossdef"><p>
An encoding of a symbol on a keycap on a keyboard.

    </p></dd><dt><a id="glossary:Mapped"></a><span class="glossterm">Mapped</span></dt><a id="idp26215500" class="indexterm"></a><dd class="glossdef"><p>
A window is said to be mapped if a map call has been performed on it.
Unmapped windows and their inferiors are never viewable or visible.

    </p></dd><dt><a id="glossary:Modifier_keys"></a><span class="glossterm">Modifier keys</span></dt><a id="idp26217388" class="indexterm"></a><a id="idp26217940" class="indexterm"></a><dd class="glossdef"><p>
Shift, Control, Meta, Super, Hyper, Alt, Compose, Apple, CapsLock,
ShiftLock, and similar keys are called modifier keys.

    </p></dd><dt><a id="glossary:Monochrome"></a><span class="glossterm">Monochrome</span></dt><a id="idp26219956" class="indexterm"></a><dd class="glossdef"><p>
Monochrome is a special case of
<a class="glossterm" href="#glossary:StaticGray"><em class="glossterm"><span class="bold"><strong>StaticGray</strong></span></em></a>
in which there are only two colormap entries.

    </p></dd><dt><a id="glossary:Obscure"></a><span class="glossterm">Obscure</span></dt><a id="idp26222356" class="indexterm"></a><dd class="glossdef"><p>
A window is obscured if some other window obscures it.
Window A obscures window B if both are viewable
<a class="glossterm" href="#glossary:InputOutput_window"><em class="glossterm"><span class="bold"><strong>InputOutput</strong></span></em></a>
windows, A is higher in the global stacking order,
and the rectangle defined by the outside edges of A intersects
the rectangle defined by the outside edges of B.
Note the distinction between obscure and occludes.
Also note that window borders are included in the calculation
and that a window can be obscured and yet still have visible regions.

    </p></dd><dt><a id="glossary:Occlude"></a><span class="glossterm">Occlude</span></dt><a id="idp26225100" class="indexterm"></a><dd class="glossdef"><p>
A window is occluded if some other window occludes it.
Window A occludes window B if both are mapped, A is higher in the global
stacking order, and the rectangle defined by the outside edges of A
intersects the rectangle defined by the outside edges of B.
Note the distinction between occludes and obscures.
Also note that window borders are included in the calculation.

    </p></dd><dt><a id="glossary:Padding"></a><span class="glossterm">Padding</span></dt><a id="idp26227236" class="indexterm"></a><dd class="glossdef"><p>
Some padding bytes are inserted in the data stream to maintain
alignment of the protocol requests on natural boundaries.
This increases ease of portability to some machine architectures.

    </p></dd><dt><a id="glossary:Parent_window"></a><span class="glossterm">Parent window</span></dt><a id="idp26229172" class="indexterm"></a><dd class="glossdef"><p>
If C is a <a class="glossterm" href="#glossary:Children"><em class="glossterm">child</em></a> of P,
then P is the parent of C.

    </p></dd><dt><a id="glossary:Passive_grab"></a><span class="glossterm">Passive grab</span></dt><a id="idp26231436" class="indexterm"></a><dd class="glossdef"><p>
Grabbing a key or button is a passive grab.
The grab activates when the key or button is actually pressed.

    </p></dd><dt><a id="glossary:Pixel_value"></a><span class="glossterm">Pixel value</span></dt><a id="idp26233268" class="indexterm"></a><dd class="glossdef"><p>
A pixel is an N-bit value, where N is the number of bit planes used
in a particular window or pixmap (that is,
N is the depth of the window or pixmap).
For a window,
a pixel value indexes a colormap to derive an actual color to be displayed.

    </p></dd><dt><a id="glossary:Pixmap"></a><span class="glossterm">Pixmap</span></dt><a id="idp26235244" class="indexterm"></a><dd class="glossdef"><p>
A pixmap is a three-dimensional array of bits.
A pixmap is normally thought of as a two-dimensional array of pixels,
where each pixel can be a value from 0 to (2^N)-1
and where N is the depth (z axis) of the pixmap.
A pixmap can also be thought of as a stack of N bitmaps.

    </p></dd><dt><a id="glossary:Plane"></a><span class="glossterm">Plane</span></dt><a id="idp26237276" class="indexterm"></a><dd class="glossdef"><p>
When a pixmap or window is thought of as a stack of bitmaps,
each bitmap is called a plane or bit plane.

    </p></dd><dt><a id="glossary:Plane_mask"></a><span class="glossterm">Plane mask</span></dt><a id="idp26239140" class="indexterm"></a><dd class="glossdef"><p>
Graphics operations can be restricted to only affect a subset of bit
planes of a destination.
A plane mask is a bit mask describing which planes are to be modified.
The plane mask is stored in a graphics context.

    </p></dd><dt><a id="glossary:Pointer"></a><span class="glossterm">Pointer</span></dt><a id="idp26241260" class="indexterm"></a><dd class="glossdef"><p>
The pointer is the pointing device attached to the cursor
and tracked on the screens.

    </p></dd><dt><a id="glossary:Pointer_grabbing"></a><span class="glossterm">Pointer grabbing</span></dt><a id="idp26243092" class="indexterm"></a><dd class="glossdef"><p>
A client can actively grab control of the pointer.
Then button and motion events will be sent to that client
rather than the client the events would normally have been sent to.

    </p></dd><dt><a id="glossary:Pointing_device"></a><span class="glossterm">Pointing device</span></dt><a id="idp26245132" class="indexterm"></a><dd class="glossdef"><p>
A pointing device is typically a mouse, tablet, or some other
device with effective dimensional motion.
There is only one visible cursor defined by the core protocol,
and it tracks whatever pointing device is attached as the pointer.

    </p></dd><dt><a id="glossary:Property"></a><span class="glossterm">Property</span></dt><a id="idp26247108" class="indexterm"></a><dd class="glossdef"><p>
Windows may have associated properties,
which consist of a name, a type, a data format, and some data.
The protocol places no interpretation on properties.
They are intended as a general-purpose naming mechanism for clients.
For example, clients might use properties to share information such as resize
hints, program names, and icon formats with a window manager.

    </p></dd><dt><a id="glossary:Property_list"></a><span class="glossterm">Property list</span></dt><a id="idp26249220" class="indexterm"></a><dd class="glossdef"><p>
The property list of a window is the list of properties that have
been defined for the window.

    </p></dd><dt><a id="glossary:PseudoColor"></a><span class="glossterm">PseudoColor</span></dt><a id="idp26251036" class="indexterm"></a><dd class="glossdef"><p>
<span class="bold"><strong>PseudoColor</strong></span>
is a class of colormap in which a pixel value indexes the colormap to
produce independent red, green, and blue values;
that is, the colormap is viewed as an array of triples (RGB values).
The RGB values can be changed dynamically.

    </p></dd><dt><a id="glossary:Redirecting_control"></a><span class="glossterm">Redirecting control</span></dt><a id="idp26253388" class="indexterm"></a><dd class="glossdef"><p>
Window managers (or client programs) may want to enforce window layout
policy in various ways.
When a client attempts to change the size or position of a window,
the operation may be redirected to a specified client
rather than the operation actually being performed.

    </p></dd><dt><a id="glossary:Reply"></a><span class="glossterm">Reply</span></dt><a id="idp26255444" class="indexterm"></a><dd class="glossdef"><p>
Information requested by a client program is sent back to the client
with a reply.
Both events and replies are multiplexed on the same connection.
Most requests do not generate replies,
although some requests generate multiple replies.

    </p></dd><dt><a id="glossary:Request"></a><span class="glossterm">Request</span></dt><a id="idp26257444" class="indexterm"></a><dd class="glossdef"><p>
A command to the server is called a request.
It is a single block of data sent over a connection.

    </p></dd><dt><a id="glossary:Resource"></a><span class="glossterm">Resource</span></dt><a id="idp26259300" class="indexterm"></a><dd class="glossdef"><p>
Windows, pixmaps, cursors, fonts, graphics contexts, and colormaps are
known as resources.
They all have unique identifiers associated with them for naming purposes.
The lifetime of a resource usually is bounded by the lifetime of the connection
over which the resource was created.

    </p></dd><dt><a id="glossary:RGB_values"></a><span class="glossterm">RGB values</span></dt><a id="idp26261348" class="indexterm"></a><dd class="glossdef"><p>
Red, green, and blue (RGB) intensity values are used to define color.
These values are always represented as 16-bit unsigned numbers,
with 0 being the minimum intensity and 65535 being the maximum intensity.
The server scales the values to match the display hardware.

    </p></dd><dt><a id="glossary:Root"></a><span class="glossterm">Root</span></dt><a id="idp26263380" class="indexterm"></a><dd class="glossdef"><p>
The root of a pixmap, colormap, or graphics context is the same as the root of
whatever drawable was used when the pixmap, colormap, or graphics context was
created.
The root of a window is the root window under which the window was created.

    </p></dd><dt><a id="glossary:Root_window"></a><span class="glossterm">Root window</span></dt><a id="idp26265356" class="indexterm"></a><dd class="glossdef"><p>
Each screen has a root window covering it.
It cannot be reconfigured or unmapped,
but it otherwise acts as a full-fledged window.
A root window has no parent.

    </p></dd><dt><a id="glossary:Save_set"></a><span class="glossterm">Save set</span></dt><a id="idp26267396" class="indexterm"></a><dd class="glossdef"><p>
The save set of a client is a list of other clients' windows that,
if they are inferiors of one of the client's windows at connection close,
should not be destroyed and that should be remapped if currently unmapped.
Save sets are typically used by window managers to avoid
lost windows if the manager terminates abnormally.

    </p></dd><dt><a id="glossary:Scanline"></a><span class="glossterm">Scanline</span></dt><a id="idp26269484" class="indexterm"></a><dd class="glossdef"><p>
A scanline is a list of pixel or bit values viewed as a horizontal
row (all values having the same y coordinate) of an image, with the
values ordered by increasing x coordinate.

    </p></dd><dt><a id="glossary:Scanline_order"></a><span class="glossterm">Scanline order</span></dt><a id="idp26271404" class="indexterm"></a><dd class="glossdef"><p>
An image represented in scanline order contains scanlines ordered by
increasing y coordinate.

    </p></dd><dt><a id="glossary:Screen"></a><span class="glossterm">Screen</span></dt><a id="idp26273244" class="indexterm"></a><dd class="glossdef"><p>
A server can provide several independent screens,
which typically have physically independent monitors.
This would be the expected configuration when there is only a single keyboard
and pointer shared among the screens.

    </p></dd><dt><a id="glossary:Selection"></a><span class="glossterm">Selection</span></dt><a id="idp25878316" class="indexterm"></a><dd class="glossdef"><p>
A selection can be thought of as an indirect property with dynamic
type; that is, rather than having the property stored in the server,
it is maintained by some client (the <span class="quote">“<span class="quote">owner</span>”</span>).
A selection is global in nature and is thought of as belonging to the user
(although maintained by clients), rather than as being private to a particular
window subhierarchy or a particular set of clients.
When a client asks for the contents of a selection,
it specifies a selection <span class="quote">“<span class="quote">target type</span>”</span>.
This target type can be used to control the transmitted representation of the
contents.
For example,
if the selection is <span class="quote">“<span class="quote">the last thing the user clicked on</span>”</span>
and that is currently an image, then the target type might specify
whether the contents of the image should be sent in XY format or Z format.
The target type can also be used to control the class of contents transmitted;
for example, asking for the <span class="quote">“<span class="quote">looks</span>”</span> (fonts, line
spacing, indentation, and so on) of a paragraph selection rather than the
text of the paragraph.
The target type can also be used for other purposes.
The protocol does not constrain the semantics.

    </p></dd><dt><a id="glossary:Server"></a><span class="glossterm">Server</span></dt><a id="idp25882004" class="indexterm"></a><dd class="glossdef"><p>
The server provides the basic windowing mechanism.
It handles connections from clients,
multiplexes graphics requests onto the screens,
and demultiplexes input back to the appropriate clients.

    </p></dd><dt><a id="glossary:Server_grabbing"></a><span class="glossterm">Server grabbing</span></dt><a id="idp25883940" class="indexterm"></a><dd class="glossdef"><p>
The server can be grabbed by a single client for exclusive use.
This prevents processing of any requests from other client connections until
the grab is completed.
This is typically only a transient state for
such things as rubber-banding, pop-up menus, or to execute requests
indivisibly.

    </p></dd><dt><a id="glossary:Sibling"></a><span class="glossterm">Sibling</span></dt><a id="idp25886108" class="indexterm"></a><dd class="glossdef"><p>
Children of the same parent window are known as sibling windows.

    </p></dd><dt><a id="glossary:Stacking_order"></a><span class="glossterm">Stacking order</span></dt><a id="idp25887916" class="indexterm"></a><dd class="glossdef"><p>
Sibling windows may stack on top of each other.
Windows above other windows both obscure and occlude those lower windows.
This is similar to paper on a desk.
The relationship between sibling windows is known as the stacking order.

    </p></dd><dt><a id="glossary:StaticColor"></a><span class="glossterm">StaticColor</span></dt><a id="idp25889868" class="indexterm"></a><dd class="glossdef"><p>
<span class="bold"><strong>StaticColor</strong></span>
can be viewed as a degenerate case of
<a class="glossterm" href="#glossary:PseudoColor"><em class="glossterm"><span class="bold"><strong>PseudoColor</strong></span></em></a>
in which the RGB values are predefined and read-only.

    </p></dd><dt><a id="glossary:StaticGray"></a><span class="glossterm">StaticGray</span></dt><a id="idp25892548" class="indexterm"></a><dd class="glossdef"><p>
<span class="bold"><strong>StaticGray</strong></span>
can be viewed as a degenerate case of
<a class="glossterm" href="#glossary:GrayScale"><em class="glossterm"><span class="bold"><strong>GrayScale</strong></span></em></a>
in which the gray values are predefined and read-only.
The values are typically linear or near-linear increasing ramps.

    </p></dd><dt><a id="glossary:Stipple"></a><span class="glossterm">Stipple</span></dt><a id="idp25895340" class="indexterm"></a><dd class="glossdef"><p>
A stipple pattern is a bitmap that is used to tile a region that will serve
as an additional clip mask for a fill operation with the foreground
color.

    </p></dd><dt><a id="glossary:String_Equivalence"></a><span class="glossterm">String Equivalence</span></dt><a id="idp25897236" class="indexterm"></a><dd class="glossdef"><p>
Two ISO Latin-1 STRING8 values are considered equal if they are the same
length and if corresponding bytes are either equal or are equivalent as
follows:  decimal values 65 to 90 inclusive (characters <span class="quote">“<span class="quote">A</span>”</span> to <span class="quote">“<span class="quote">Z</span>”</span>) are
pairwise equivalent to decimal values 97 to 122 inclusive
(characters <span class="quote">“<span class="quote">a</span>”</span> to <span class="quote">“<span class="quote">z</span>”</span>), decimal values 192 to 214 inclusive
(characters <span class="quote">“<span class="quote">A grave</span>”</span> to <span class="quote">“<span class="quote">O diaeresis</span>”</span>) are pairwise equivalent to decimal
values 224 to 246 inclusive (characters <span class="quote">“<span class="quote">a grave</span>”</span> to <span class="quote">“<span class="quote">o diaeresis</span>”</span>),
and decimal values 216 to 222 inclusive (characters <span class="quote">“<span class="quote">O oblique</span>”</span> to <span class="quote">“<span class="quote">THORN</span>”</span>)
are pairwise equivalent to decimal values 246 to 254 inclusive
(characters <span class="quote">“<span class="quote">o oblique</span>”</span> to <span class="quote">“<span class="quote">thorn</span>”</span>).

    </p></dd><dt><a id="glossary:Tile"></a><span class="glossterm">Tile</span></dt><a id="idp25902172" class="indexterm"></a><dd class="glossdef"><p>
A pixmap can be replicated in two dimensions to tile a region.
The pixmap itself is also known as a tile.

    </p></dd><dt><a id="glossary:Timestamp"></a><span class="glossterm">Timestamp</span></dt><a id="idp25904036" class="indexterm"></a><a id="idp25904604" class="indexterm"></a><dd class="glossdef"><p>
A timestamp is a time value, expressed in milliseconds.
It typically is the time since the last
server reset.
Timestamp values wrap around (after about 49.7 days).
The server, given its current time is represented by timestamp T,
always interprets timestamps from clients by treating half of the
timestamp space as being earlier in time than T and half of the
timestamp space as being later in time than T.
One timestamp value (named
<span class="bold"><strong>CurrentTime</strong></span>)
is never generated by the server.
This value is reserved for use in requests to represent the current
server time.

    </p></dd><dt><a id="glossary:TrueColor"></a><span class="glossterm">TrueColor</span></dt><a id="idp25907268" class="indexterm"></a><dd class="glossdef"><p>
<span class="bold"><strong>TrueColor</strong></span>
can be viewed as a degenerate case of
<a class="glossterm" href="#glossary:DirectColor"><em class="glossterm"><span class="bold"><strong>DirectColor</strong></span></em></a>
in which the subfields in the pixel value directly encode
the corresponding RGB values; that is, the colormap has predefined
read-only RGB values.
The values are typically linear or near-linear increasing ramps.

    </p></dd><dt><a id="glossary:Type"></a><span class="glossterm">Type</span></dt><a id="idp25910132" class="indexterm"></a><dd class="glossdef"><p>
A type is an arbitrary atom used to identify the interpretation of
property data.
Types are completely uninterpreted by the server
and are solely for the benefit of clients.

    </p></dd><dt><a id="glossary:Viewable"></a><span class="glossterm">Viewable</span></dt><a id="idp25912068" class="indexterm"></a><dd class="glossdef"><p>
A window is viewable if it and all of its ancestors are mapped.
This does not imply that any portion of the window is actually visible.
Graphics requests can be performed on a window when it is not viewable,
but output will not be retained unless the server is maintaining
backing store.

    </p></dd><dt><a id="glossary:Visible"></a><span class="glossterm">Visible</span></dt><a id="idp25914116" class="indexterm"></a><dd class="glossdef"><p>
A region of a window is visible if someone looking at the screen can
actually see it;
that is, the window is viewable and the region is not occluded by any
other window.

    </p></dd><dt><a id="glossary:Window_gravity"></a><span class="glossterm">Window gravity</span></dt><a id="idp25916028" class="indexterm"></a><dd class="glossdef"><p>
When windows are resized,
subwindows may be repositioned automatically relative to some position
in the window.
This attraction of a subwindow to some part of its parent is known
as window gravity.

    </p></dd><dt><a id="glossary:Window_manager"></a><span class="glossterm">Window manager</span></dt><a id="idp25918092" class="indexterm"></a><dd class="glossdef"><p>
Manipulation of windows on the screen and much of the user interface
(policy) is typically provided by a window manager client.

    </p></dd><dt><a id="glossary:XYFormat"></a><span class="glossterm">XYFormat</span></dt><a id="idp25920100" class="indexterm"></a><dd class="glossdef"><p>
The data for a pixmap is said to be in XY format if it is organized as
a set of bitmaps representing individual bit planes, with the planes
appearing from most-significant to least-significant in bit order.

    </p></dd><dt><a id="glossary:ZFormat"></a><span class="glossterm">ZFormat</span></dt><a id="idp25922068" class="indexterm"></a><dd class="glossdef"><p>
The data for a pixmap is said to be in Z format if it is organized as
a set of pixel values in scanline order.

    </p></dd></dl></div><div class="index"><div class="titlepage"><div><div><h1 class="title"><a id="index"></a>Index</h1></div></div></div><div class="index"><div class="indexdiv"><h3>A</h3><dl><dt>Access control list, <a class="indexterm" href="#requests:ChangeHosts">ChangeHosts</a>, <a class="indexterm" href="#glossary:Access_control_list">Glossary</a></dt><dt>Active grab, <a class="indexterm" href="#glossary:Active_grab">Glossary</a></dt><dd><dl><dt>keyboard, <a class="indexterm" href="#requests:GrabKeyboard">GrabKeyboard</a></dt><dt>pointer, <a class="indexterm" href="#requests:GrabPointer">GrabPointer</a>, <a class="indexterm" href="#requests:ChangeActivePointerGrab">ChangeActivePointerGrab</a></dt></dl></dd><dt>AllocColor, <a class="indexterm" href="#requests:AllocColor">AllocColor</a></dt><dt>AllocColorCells, <a class="indexterm" href="#requests:AllocColorCells">AllocColorCells</a></dt><dt>AllocColorPlanes, <a class="indexterm" href="#requests:AllocColorPlanes">AllocColorPlanes</a></dt><dt>AllocNamedColor, <a class="indexterm" href="#requests:AllocNamedColor">AllocNamedColor</a></dt><dt>AllowEvents, <a class="indexterm" href="#requests:AllowEvents">AllowEvents</a></dt><dt>Ancestors, <a class="indexterm" href="#glossary:Ancestors">Glossary</a></dt><dt>Atom, <a class="indexterm" href="#requests:InternAtom">InternAtom</a>, <a class="indexterm" href="#glossary:Atom">Glossary</a></dt><dd><dl><dt>predefined, <a class="indexterm" href="#Predefined_Atoms">Predefined Atoms</a>, <a class="indexterm" href="#Encoding::Predefined_Atoms">Predefined Atoms</a></dt></dl></dd><dt>Authorization, <a class="indexterm" href="#authorization">Connection Initiation</a></dt></dl></div><div class="indexdiv"><h3>B</h3><dl><dt>Background, <a class="indexterm" href="#requests:CreateWindow:background">CreateWindow</a>, <a class="indexterm" href="#requests:ClearArea">ClearArea</a>, <a class="indexterm" href="#glossary:Background">Glossary</a></dt><dt>Backing store, <a class="indexterm" href="#Backing-stores">Screen Information</a>, <a class="indexterm" href="#glossary:Backing_store">Glossary</a></dt><dt>Bell, <a class="indexterm" href="#requests:Bell">Bell</a></dt><dt>Bit</dt><dd><dl><dt>gravity, <a class="indexterm" href="#requests:ConfigureWindow:gravity">ConfigureWindow</a>, <a class="indexterm" href="#glossary:Bit_gravity">Glossary</a></dt><dt>plane, <a class="indexterm" href="#glossary:Bit_plane">Glossary</a></dt></dl></dd><dt>Bitmap, <a class="indexterm" href="#glossary:Bitmap">Glossary</a></dt><dd><dl><dt>format, <a class="indexterm" href="#bitmap-format">Server Information</a></dt></dl></dd><dt>Border, <a class="indexterm" href="#glossary:Border">Glossary</a></dt><dt>Button</dt><dd><dl><dt>grabbing, <a class="indexterm" href="#requests:GrabButton">GrabButton</a>, <a class="indexterm" href="#glossary:Button_grabbing">Glossary</a></dt><dt>number, <a class="indexterm" href="#pointers:buttons">Pointers</a></dt></dl></dd><dt>ButtonPress, <a class="indexterm" href="#events:ButtonPress">Input Device events</a></dt><dt>ButtonRelease, <a class="indexterm" href="#events:ButtonRelease">Input Device events</a></dt><dt>Byte order, <a class="indexterm" href="#byte-order">Connection Initiation</a>, <a class="indexterm" href="#glossary:Byte_order">Glossary</a></dt></dl></div><div class="indexdiv"><h3>C</h3><dl><dt>ChangeActivePointerGrab, <a class="indexterm" href="#requests:ChangeActivePointerGrab">ChangeActivePointerGrab</a></dt><dt>ChangeGC, <a class="indexterm" href="#requests:ChangeGC">ChangeGC</a></dt><dt>ChangeHosts, <a class="indexterm" href="#requests:ChangeHosts">ChangeHosts</a></dt><dt>ChangeKeyboardControl, <a class="indexterm" href="#requests:ChangeKeyboardControl">ChangeKeyboardControl</a></dt><dt>ChangeKeyboardMapping, <a class="indexterm" href="#requests:ChangeKeyboardMapping">ChangeKeyboardMapping</a></dt><dt>ChangePointerControl, <a class="indexterm" href="#requests:ChangePointerControl">ChangePointerControl</a></dt><dt>ChangeProperty, <a class="indexterm" href="#requests:ChangeProperty">ChangeProperty</a></dt><dt>ChangeSaveSet, <a class="indexterm" href="#requests:ChangeSaveSet">ChangeSaveSet</a></dt><dt>ChangeWindowAttributes, <a class="indexterm" href="#requests:ChangeWindowAttributes">ChangeWindowAttributes</a></dt><dt>Children, <a class="indexterm" href="#requests:QueryTree">QueryTree</a>, <a class="indexterm" href="#glossary:Children">Glossary</a></dt><dt>CirculateNotify, <a class="indexterm" href="#events:CirculateNotify">CirculateNotify</a></dt><dt>CirculateRequest, <a class="indexterm" href="#events:CirculateRequest">CirculateRequest</a></dt><dt>CirculateWindow, <a class="indexterm" href="#requests:CirculateWindow">CirculateWindow</a></dt><dt>ClearArea, <a class="indexterm" href="#requests:ClearArea">ClearArea</a></dt><dt>Client, <a class="indexterm" href="#glossary:Client">Glossary</a></dt><dt>ClientMessage, <a class="indexterm" href="#events:ClientMessage">ClientMessage</a></dt><dt>Clipping region, <a class="indexterm" href="#requests:CreateGC:clip-mask">CreateGC</a>, <a class="indexterm" href="#glossary:Clipping_region">Glossary</a></dt><dt>CloseFont, <a class="indexterm" href="#requests:CloseFont">CloseFont</a></dt><dt>Colormap, <a class="indexterm" href="#requests:CreateColormap">CreateColormap</a>, <a class="indexterm" href="#glossary:Colormap">Glossary</a></dt><dd><dl><dt>types, <a class="indexterm" href="#colormap_types">Visual Information</a></dt></dl></dd><dt>ColormapNotify, <a class="indexterm" href="#events:ColormapNotify">ColormapNotify</a></dt><dt>ConfigureNotify, <a class="indexterm" href="#events:ConfigureNotify">ConfigureNotify</a></dt><dt>ConfigureRequest, <a class="indexterm" href="#events:ConfigureRequest">ConfigureRequest</a></dt><dt>ConfigureWindow, <a class="indexterm" href="#requests:ConfigureWindow">ConfigureWindow</a></dt><dt>Connection, <a class="indexterm" href="#Connection_Setup">Connection Setup</a>, <a class="indexterm" href="#glossary:Connection">Glossary</a></dt><dd><dl><dt>closing, <a class="indexterm" href="#Connection_Close">Connection Close</a></dt><dt>opening, <a class="indexterm" href="#connection_initiation">Connection Initiation</a></dt></dl></dd><dt>Containment, <a class="indexterm" href="#glossary:Containment">Glossary</a></dt><dt>ConvertSelection, <a class="indexterm" href="#requests:ConvertSelection">ConvertSelection</a></dt><dt>Coordinate system, <a class="indexterm" href="#glossary:Coordinate_system">Glossary</a></dt><dd><dl><dt>translating, <a class="indexterm" href="#glossary:Coordinate_system">Glossary</a></dt></dl></dd><dt>CopyArea, <a class="indexterm" href="#requests:CopyArea">CopyArea</a></dt><dt>CopyColormapAndFree, <a class="indexterm" href="#requests:CopyColormapAndFree">CopyColormapAndFree</a></dt><dt>CopyGC, <a class="indexterm" href="#requests:CopyGC">CopyGC</a></dt><dt>CopyPlane, <a class="indexterm" href="#requests:CopyPlane">CopyPlane</a></dt><dt>CreateColormap, <a class="indexterm" href="#requests:CreateColormap">CreateColormap</a></dt><dt>CreateCursor, <a class="indexterm" href="#requests:CreateCursor">CreateCursor</a></dt><dt>CreateGC, <a class="indexterm" href="#requests:CreateGC">CreateGC</a></dt><dt>CreateGlyphCursor, <a class="indexterm" href="#requests:CreateGlyphCursor">CreateGlyphCursor</a></dt><dt>CreateNotify, <a class="indexterm" href="#events:CreateNotify">CreateNotify</a></dt><dt>CreatePixmap, <a class="indexterm" href="#requests:CreatePixmap">CreatePixmap</a></dt><dt>CreateWindow, <a class="indexterm" href="#requests:CreateWindow">CreateWindow</a></dt><dt>CurrentTime, <a class="indexterm" href="#glossary:Timestamp">Glossary</a></dt><dt>Cursor, <a class="indexterm" href="#requests:CreateCursor">CreateCursor</a>, <a class="indexterm" href="#glossary:Cursor">Glossary</a></dt></dl></div><div class="indexdiv"><h3>D</h3><dl><dt>DeleteProperty, <a class="indexterm" href="#requests:DeleteProperty">DeleteProperty</a></dt><dt>Depth, <a class="indexterm" href="#glossary:Depth">Glossary</a></dt><dt>DestroyNotify, <a class="indexterm" href="#events:DestroyNotify">DestroyNotify</a></dt><dt>DestroySubwindows, <a class="indexterm" href="#requests:DestroySubwindows">DestroySubwindows</a></dt><dt>DestroyWindow, <a class="indexterm" href="#requests:DestroyWindow">DestroyWindow</a></dt><dt>Device, <a class="indexterm" href="#glossary:Device">Glossary</a></dt><dt>DirectColor, <a class="indexterm" href="#glossary:DirectColor">Glossary</a></dt><dt>Display, <a class="indexterm" href="#glossary:Display">Glossary</a></dt><dt>Drawable, <a class="indexterm" href="#glossary:Drawable">Glossary</a></dt></dl></div><div class="indexdiv"><h3>E</h3><dl><dt>EnterNotify, <a class="indexterm" href="#events:EnterNotify">Pointer Window events</a></dt><dt>Error Codes</dt><dd><dl><dt>Access, <a class="indexterm" href="#errors:Access">Errors</a></dt><dt>Alloc, <a class="indexterm" href="#errors:Alloc">Errors</a></dt><dt>Atom, <a class="indexterm" href="#errors:Atom">Errors</a></dt><dt>Colormap, <a class="indexterm" href="#errors:Colormap">Errors</a></dt><dt>Cursor, <a class="indexterm" href="#errors:Cursor">Errors</a></dt><dt>Drawable, <a class="indexterm" href="#errors:Drawable">Errors</a></dt><dt>extensions, <a class="indexterm" href="#errors:extensions">Error Format</a></dt><dt>Font, <a class="indexterm" href="#errors:Font">Errors</a></dt><dt>GContext, <a class="indexterm" href="#errors:GContext">Errors</a></dt><dt>IDChoice, <a class="indexterm" href="#errors:IDChoice">Errors</a></dt><dt>Implementation, <a class="indexterm" href="#errors:Implementation">Errors</a></dt><dt>Length, <a class="indexterm" href="#errors:Length">Errors</a></dt><dt>Match, <a class="indexterm" href="#errors:Match">Errors</a></dt><dt>Name, <a class="indexterm" href="#errors:Name">Errors</a></dt><dt>Pixmap, <a class="indexterm" href="#errors:Pixmap">Errors</a></dt><dt>Request, <a class="indexterm" href="#errors:Request">Errors</a></dt><dt>Value, <a class="indexterm" href="#errors:Value">Errors</a></dt><dt>Window, <a class="indexterm" href="#errors:Window">Errors</a></dt></dl></dd><dt>Error report</dt><dd><dl><dt>encoding, <a class="indexterm" href="#Encoding::Errors">Errors</a></dt><dt>format, <a class="indexterm" href="#error_format">Error Format</a></dt></dl></dd><dt>Event, <a class="indexterm" href="#Events">Events</a>, <a class="indexterm" href="#glossary:Event">Glossary</a></dt><dd><dl><dt>encoding, <a class="indexterm" href="#Encoding::Events">Events</a></dt><dt>Exposure, <a class="indexterm" href="#events:Expose">Expose</a>, <a class="indexterm" href="#glossary:Exposure_event">Glossary</a></dt><dt>extension, <a class="indexterm" href="#events:extensions">Event Format</a></dt><dt>format, <a class="indexterm" href="#event_format">Event Format</a></dt><dt>mask, <a class="indexterm" href="#requests:CreateWindow:event-mask">CreateWindow</a>, <a class="indexterm" href="#glossary:Event_mask">Glossary</a></dt><dt>propagation, <a class="indexterm" href="#requests:CreateWindow:event-mask">CreateWindow</a>, <a class="indexterm" href="#glossary:Event_propagation">Glossary</a></dt><dt>sending, <a class="indexterm" href="#requests:SendEvent">SendEvent</a></dt><dt>source, <a class="indexterm" href="#events:input:source">Input Device events</a>, <a class="indexterm" href="#glossary:Event_source">Glossary</a></dt><dt>synchronization, <a class="indexterm" href="#glossary:Event_synchronization">Glossary</a></dt></dl></dd><dt>Expose, <a class="indexterm" href="#events:Expose">Expose</a></dt><dt>Extension, <a class="indexterm" href="#extension">Request Format</a>, <a class="indexterm" href="#glossary:Extension">Glossary</a></dt><dd><dl><dt>error codes, <a class="indexterm" href="#errors:extensions">Error Format</a></dt><dt>event, <a class="indexterm" href="#events:extensions">Event Format</a></dt><dt>listing, <a class="indexterm" href="#requests:ListExtensions">ListExtensions</a></dt><dt>querying, <a class="indexterm" href="#requests:QueryExtension">QueryExtension</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>F</h3><dl><dt>Fill rule, <a class="indexterm" href="#requests:CreateGC:fill-rule">CreateGC</a></dt><dt>FillPoly, <a class="indexterm" href="#requests:FillPoly">FillPoly</a></dt><dt>Focus window, <a class="indexterm" href="#glossary:Focus_window">Glossary</a></dt><dt>FocusIn, <a class="indexterm" href="#events:FocusIn">Input Focus events</a></dt><dt>FocusOut, <a class="indexterm" href="#events:FocusOut">Input Focus events</a></dt><dt>Font, <a class="indexterm" href="#requests:OpenFont">OpenFont</a>, <a class="indexterm" href="#glossary:Font">Glossary</a></dt><dt>ForceScreenSaver, <a class="indexterm" href="#requests:ForceScreenSaver">ForceScreenSaver</a></dt><dt>FreeColormap, <a class="indexterm" href="#requests:FreeColormap">FreeColormap</a></dt><dt>FreeColors, <a class="indexterm" href="#requests:FreeColors">FreeColors</a></dt><dt>FreeCursor, <a class="indexterm" href="#requests:FreeCursor">FreeCursor</a></dt><dt>FreeGC, <a class="indexterm" href="#requests:FreeGC">FreeGC</a></dt><dt>FreePixmap, <a class="indexterm" href="#requests:FreePixmap">FreePixmap</a></dt></dl></div><div class="indexdiv"><h3>G</h3><dl><dt>GC, <a class="indexterm" href="#glossary:GC">Glossary</a></dt><dd><dl><dt>(see also Graphics context)</dt></dl></dd><dt>GContext, <a class="indexterm" href="#glossary:GC">Glossary</a></dt><dd><dl><dt>(see also Graphics context)</dt></dl></dd><dt>GetAtomName, <a class="indexterm" href="#requests:GetAtomName">GetAtomName</a></dt><dt>GetFontPath, <a class="indexterm" href="#requests:GetFontPath">GetFontPath</a></dt><dt>GetGeometry, <a class="indexterm" href="#requests:GetGeometry">GetGeometry</a></dt><dt>GetImage, <a class="indexterm" href="#requests:GetImage">GetImage</a></dt><dt>GetInputFocus, <a class="indexterm" href="#requests:GetInputFocus">GetInputFocus</a></dt><dt>GetKeyboardControl, <a class="indexterm" href="#requests:GetKeyboardControl">GetKeyboardControl</a></dt><dt>GetKeyboardMapping, <a class="indexterm" href="#requests:GetKeyboardMapping">GetKeyboardMapping</a></dt><dt>GetModifierMapping, <a class="indexterm" href="#requests:GetModifierMapping">GetModifierMapping</a></dt><dt>GetMotionEvents, <a class="indexterm" href="#requests:GetMotionEvents">GetMotionEvents</a></dt><dt>GetPointerControl, <a class="indexterm" href="#requests:GetPointerControl">GetPointerControl</a></dt><dt>GetPointerMapping, <a class="indexterm" href="#requests:GetPointerMapping">GetPointerMapping</a></dt><dt>GetProperty, <a class="indexterm" href="#requests:GetProperty">GetProperty</a></dt><dt>GetScreenSaver, <a class="indexterm" href="#requests:GetScreenSaver">GetScreenSaver</a></dt><dt>GetSelectionOwner, <a class="indexterm" href="#requests:GetSelectionOwner">GetSelectionOwner</a></dt><dt>GetWindowAttributes, <a class="indexterm" href="#requests:GetWindowAttributes">GetWindowAttributes</a></dt><dt>Glyph, <a class="indexterm" href="#glossary:Glyph">Glossary</a></dt><dt>Grab, <a class="indexterm" href="#glossary:Grab">Glossary</a></dt><dd><dl><dt>(see also Active grab)</dt><dt>(see also Passive grab)</dt></dl></dd><dt>GrabButton, <a class="indexterm" href="#requests:GrabButton">GrabButton</a></dt><dt>GrabKey, <a class="indexterm" href="#requests:GrabKey">GrabKey</a></dt><dt>GrabKeyboard, <a class="indexterm" href="#requests:GrabKeyboard">GrabKeyboard</a></dt><dt>GrabPointer, <a class="indexterm" href="#requests:GrabPointer">GrabPointer</a></dt><dt>GrabServer, <a class="indexterm" href="#requests:GrabServer">GrabServer</a></dt><dt>Graphics context, <a class="indexterm" href="#requests:CreateGC">CreateGC</a>, <a class="indexterm" href="#glossary:Graphics_context">Glossary</a></dt><dt>GraphicsExposure, <a class="indexterm" href="#events:GraphicsExposure">GraphicsExposure</a></dt><dt>Gravity, <a class="indexterm" href="#requests:ConfigureWindow:gravity">ConfigureWindow</a>, <a class="indexterm" href="#glossary:Gravity">Glossary</a></dt><dt>GravityNotify, <a class="indexterm" href="#events:GravityNotify">GravityNotify</a></dt><dt>GrayScale, <a class="indexterm" href="#glossary:GrayScale">Glossary</a></dt></dl></div><div class="indexdiv"><h3>H</h3><dl><dt>Hotspot, <a class="indexterm" href="#glossary:Hotspot">Glossary</a></dt></dl></div><div class="indexdiv"><h3>I</h3><dl><dt>Identifier, <a class="indexterm" href="#glossary:Identifier">Glossary</a></dt><dt>ImageText16, <a class="indexterm" href="#requests:ImageText16">ImageText16</a></dt><dt>ImageText8, <a class="indexterm" href="#requests:ImageText8">ImageText8</a></dt><dt>Inferiors, <a class="indexterm" href="#glossary:Inferiors">Glossary</a></dt><dt>Input device</dt><dd><dl><dt>events, <a class="indexterm" href="#events:input">Input Device events</a></dt></dl></dd><dt>Input focus, <a class="indexterm" href="#requests:SetInputFocus">SetInputFocus</a>, <a class="indexterm" href="#glossary:Input_focus">Glossary</a></dt><dd><dl><dt>events, <a class="indexterm" href="#events:input_focus">Input Focus events</a></dt></dl></dd><dt>Input manager, <a class="indexterm" href="#glossary:Input_manager">Glossary</a></dt><dt>InstallColormap, <a class="indexterm" href="#requests:InstallColormap">InstallColormap</a></dt><dt>InternAtom, <a class="indexterm" href="#requests:InternAtom">InternAtom</a></dt></dl></div><div class="indexdiv"><h3>K</h3><dl><dt>Key</dt><dd><dl><dt>grabbing, <a class="indexterm" href="#requests:GrabKey">GrabKey</a>, <a class="indexterm" href="#glossary:Key_grabbing">Glossary</a></dt><dt>modifier (see Modifier keys)</dt></dl></dd><dt>Keyboard, <a class="indexterm" href="#Keyboards">Keyboards</a></dt><dd><dl><dt>grabbing, <a class="indexterm" href="#requests:GrabKeyboard">GrabKeyboard</a>, <a class="indexterm" href="#glossary:Keyboard_grabbing">Glossary</a></dt></dl></dd><dt>Keycode, <a class="indexterm" href="#keycode">Keyboards</a>, <a class="indexterm" href="#keycode_range">Server Information</a></dt><dt>KeymapNotify, <a class="indexterm" href="#events:KeymapNotify">KeymapNotify</a></dt><dt>KeyPress, <a class="indexterm" href="#keysym_from_keypress">Keyboards</a>, <a class="indexterm" href="#events:KeyPress">Input Device events</a></dt><dt>KeyRelease, <a class="indexterm" href="#events:KeyRelease">Input Device events</a></dt><dt>Keysym, <a class="indexterm" href="#keysym">Keyboards</a>, <a class="indexterm" href="#requests:ChangeKeyboardMapping">ChangeKeyboardMapping</a>, <a class="indexterm" href="#requests:GetKeyboardMapping">GetKeyboardMapping</a>, <a class="indexterm" href="#keysym_encoding">KEYSYM Encoding</a>, <a class="indexterm" href="#glossary:Keysym">Glossary</a></dt><dd><dl><dt>Unicode, <a class="indexterm" href="#Unicode_KEYSYMs">Unicode KEYSYMs</a></dt></dl></dd><dt>KillClient, <a class="indexterm" href="#requests:KillClient">KillClient</a></dt></dl></div><div class="indexdiv"><h3>L</h3><dl><dt>LeaveNotify, <a class="indexterm" href="#events:LeaveNotify">Pointer Window events</a></dt><dt>Line</dt><dd><dl><dt>drawing, <a class="indexterm" href="#requests:CreateGC:line-width">CreateGC</a>, <a class="indexterm" href="#requests:PolyLine">PolyLine</a></dt></dl></dd><dt>ListExtensions, <a class="indexterm" href="#requests:ListExtensions">ListExtensions</a></dt><dt>ListFonts, <a class="indexterm" href="#requests:ListFonts">ListFonts</a></dt><dt>ListFontsWithInfo, <a class="indexterm" href="#requests:ListFontsWithInfo">ListFontsWithInfo</a></dt><dt>ListHosts, <a class="indexterm" href="#requests:ListHosts">ListHosts</a></dt><dt>ListInstalledColormaps, <a class="indexterm" href="#requests:ListInstalledColormaps">ListInstalledColormaps</a></dt><dt>ListProperties, <a class="indexterm" href="#requests:ListProperties">ListProperties</a></dt><dt>LookupColor, <a class="indexterm" href="#requests:LookupColor">LookupColor</a></dt></dl></div><div class="indexdiv"><h3>M</h3><dl><dt>MapNotify, <a class="indexterm" href="#events:MapNotify">MapNotify</a></dt><dt>Mapped window, <a class="indexterm" href="#requests:MapWindow">MapWindow</a>, <a class="indexterm" href="#events:MapNotify">MapNotify</a>, <a class="indexterm" href="#glossary:Mapped">Glossary</a></dt><dt>MappingNotify, <a class="indexterm" href="#events:MappingNotify">MappingNotify</a></dt><dt>MapRequest, <a class="indexterm" href="#events:MapRequest">MapRequest</a></dt><dt>MapSubwindows, <a class="indexterm" href="#requests:MapSubwindows">MapSubwindows</a></dt><dt>MapWindow, <a class="indexterm" href="#requests:MapWindow">MapWindow</a></dt><dt>modifier</dt><dd><dl><dt>group, <a class="indexterm" href="#group_modifier">Keyboards</a></dt><dt>Lock, <a class="indexterm" href="#modifier:lock">Keyboards</a></dt><dt>NumLock, <a class="indexterm" href="#modifier:lock">Keyboards</a></dt></dl></dd><dt>Modifier keys, <a class="indexterm" href="#requests:SetModifierMapping">SetModifierMapping</a>, <a class="indexterm" href="#requests:GetModifierMapping">GetModifierMapping</a>, <a class="indexterm" href="#glossary:Modifier_keys">Glossary</a></dt><dt>Monochrome, <a class="indexterm" href="#glossary:Monochrome">Glossary</a></dt><dt>MotionNotify, <a class="indexterm" href="#events:MotionNotify">Input Device events</a></dt></dl></div><div class="indexdiv"><h3>N</h3><dl><dt>NoExposure, <a class="indexterm" href="#events:NoExposure">NoExposure</a></dt><dt>NoOperation, <a class="indexterm" href="#requests:NoOperation">NoOperation</a></dt></dl></div><div class="indexdiv"><h3>O</h3><dl><dt>Obscure, <a class="indexterm" href="#glossary:Obscure">Glossary</a></dt><dt>Occlude, <a class="indexterm" href="#glossary:Occlude">Glossary</a></dt><dt>Opcode</dt><dd><dl><dt>major, <a class="indexterm" href="#major_opcode">Request Format</a></dt><dt>minor, <a class="indexterm" href="#minor_opcode">Request Format</a></dt></dl></dd><dt>OpenFont, <a class="indexterm" href="#requests:OpenFont">OpenFont</a></dt></dl></div><div class="indexdiv"><h3>P</h3><dl><dt>Padding, <a class="indexterm" href="#encoding:pad">Syntactic Conventions</a>, <a class="indexterm" href="#glossary:Padding">Glossary</a></dt><dt>Passive grab, <a class="indexterm" href="#glossary:Passive_grab">Glossary</a></dt><dd><dl><dt>keyboard, <a class="indexterm" href="#requests:GrabKey">GrabKey</a></dt><dt>pointer, <a class="indexterm" href="#requests:GrabButton">GrabButton</a></dt></dl></dd><dt>Pixel value, <a class="indexterm" href="#colormap_types">Visual Information</a>, <a class="indexterm" href="#glossary:Pixel_value">Glossary</a></dt><dt>Pixmap, <a class="indexterm" href="#glossary:Pixmap">Glossary</a></dt><dd><dl><dt>format, <a class="indexterm" href="#pixmap-formats">Server Information</a></dt></dl></dd><dt>Plane, <a class="indexterm" href="#glossary:Plane">Glossary</a></dt><dd><dl><dt>mask, <a class="indexterm" href="#requests:CreateGC:plane-mask">CreateGC</a>, <a class="indexterm" href="#glossary:Plane_mask">Glossary</a></dt></dl></dd><dt>Pointer, <a class="indexterm" href="#glossary:Pointer">Glossary</a></dt><dd><dl><dt>grabbing, <a class="indexterm" href="#requests:GrabPointer">GrabPointer</a>, <a class="indexterm" href="#glossary:Pointer_grabbing">Glossary</a></dt></dl></dd><dt>Pointing device, <a class="indexterm" href="#glossary:Pointing_device">Glossary</a></dt><dt>PolyArc, <a class="indexterm" href="#requests:PolyArc">PolyArc</a></dt><dt>PolyFillArc, <a class="indexterm" href="#requests:PolyFillArc">PolyFillArc</a></dt><dt>PolyFillRectangle, <a class="indexterm" href="#requests:PolyFillRectangle">PolyFillRectangle</a></dt><dt>PolyLine, <a class="indexterm" href="#requests:PolyLine">PolyLine</a></dt><dt>PolyPoint, <a class="indexterm" href="#requests:PolyPoint">PolyPoint</a></dt><dt>PolyRectangle, <a class="indexterm" href="#requests:PolyRectangle">PolyRectangle</a></dt><dt>PolySegment, <a class="indexterm" href="#requests:PolySegment">PolySegment</a></dt><dt>PolyText16, <a class="indexterm" href="#requests:PolyText16">PolyText16</a></dt><dt>PolyText8, <a class="indexterm" href="#requests:PolyText8">PolyText8</a></dt><dt>Property, <a class="indexterm" href="#requests:ChangeProperty">ChangeProperty</a>, <a class="indexterm" href="#glossary:Property">Glossary</a></dt><dt>Property list, <a class="indexterm" href="#glossary:Property_list">Glossary</a></dt><dt>PropertyNotify, <a class="indexterm" href="#events:PropertyNotify">PropertyNotify</a></dt><dt>PseudoColor, <a class="indexterm" href="#glossary:PseudoColor">Glossary</a></dt><dt>PutImage, <a class="indexterm" href="#requests:PutImage">PutImage</a></dt></dl></div><div class="indexdiv"><h3>Q</h3><dl><dt>QueryBestSize, <a class="indexterm" href="#requests:QueryBestSize">QueryBestSize</a></dt><dt>QueryColors, <a class="indexterm" href="#requests:QueryColors">QueryColors</a></dt><dt>QueryExtension, <a class="indexterm" href="#requests:QueryExtension">QueryExtension</a></dt><dt>QueryFont, <a class="indexterm" href="#requests:QueryFont">QueryFont</a></dt><dt>QueryKeymap, <a class="indexterm" href="#requests:QueryKeymap">QueryKeymap</a></dt><dt>QueryPointer, <a class="indexterm" href="#requests:QueryPointer">QueryPointer</a></dt><dt>QueryTextExtents, <a class="indexterm" href="#requests:QueryTextExtents">QueryTextExtents</a></dt><dt>QueryTree, <a class="indexterm" href="#requests:QueryTree">QueryTree</a></dt></dl></div><div class="indexdiv"><h3>R</h3><dl><dt>RecolorCursor, <a class="indexterm" href="#requests:RecolorCursor">RecolorCursor</a></dt><dt>Redirecting control, <a class="indexterm" href="#glossary:Redirecting_control">Glossary</a></dt><dt>ReparentNotify, <a class="indexterm" href="#events:ReparentNotify">ReparentNotify</a></dt><dt>ReparentWindow, <a class="indexterm" href="#requests:ReparentWindow">ReparentWindow</a></dt><dt>Reply, <a class="indexterm" href="#glossary:Reply">Glossary</a></dt><dd><dl><dt>format, <a class="indexterm" href="#reply_format">Reply Format</a></dt></dl></dd><dt>Request, <a class="indexterm" href="#glossary:Request">Glossary</a></dt><dd><dl><dt>encoding, <a class="indexterm" href="#Encoding::Requests">Requests</a></dt><dt>format, <a class="indexterm" href="#request_format">Request Format</a></dt><dt>length, <a class="indexterm" href="#request_length">Request Format</a>, <a class="indexterm" href="#Maximum-request-length">Server Information</a></dt></dl></dd><dt>ResizeRequest, <a class="indexterm" href="#events:ResizeRequest">ResizeRequest</a></dt><dt>Resource, <a class="indexterm" href="#glossary:Resource">Glossary</a></dt><dd><dl><dt>ID, <a class="indexterm" href="#resource-id-mask">Server Information</a></dt></dl></dd><dt>RGB values, <a class="indexterm" href="#glossary:RGB_values">Glossary</a></dt><dt>Root, <a class="indexterm" href="#glossary:Root">Glossary</a></dt><dt>RotateProperties, <a class="indexterm" href="#requests:RotateProperties">RotateProperties</a></dt></dl></div><div class="indexdiv"><h3>S</h3><dl><dt>Save set, <a class="indexterm" href="#glossary:Save_set">Glossary</a></dt><dt>Scanline, <a class="indexterm" href="#glossary:Scanline">Glossary</a></dt><dt>Scanline order, <a class="indexterm" href="#glossary:Scanline_order">Glossary</a></dt><dt>Screen, <a class="indexterm" href="#screen_information">Screen Information</a>, <a class="indexterm" href="#glossary:Screen">Glossary</a></dt><dt>Selection, <a class="indexterm" href="#requests:SetSelectionOwner">SetSelectionOwner</a>, <a class="indexterm" href="#glossary:Selection">Glossary</a></dt><dt>SelectionClear, <a class="indexterm" href="#events:SelectionClear">SelectionClear</a></dt><dt>SelectionNotify, <a class="indexterm" href="#events:SelectionNotify">SelectionNotify</a></dt><dt>SelectionRequest, <a class="indexterm" href="#events:SelectionRequest">SelectionRequest</a></dt><dt>SendEvent, <a class="indexterm" href="#requests:SendEvent">SendEvent</a></dt><dt>Sequence number, <a class="indexterm" href="#sequence_number">Request Format</a></dt><dt>Server, <a class="indexterm" href="#glossary:Server">Glossary</a></dt><dd><dl><dt>grabbing, <a class="indexterm" href="#requests:GrabServer">GrabServer</a>, <a class="indexterm" href="#glossary:Server_grabbing">Glossary</a></dt></dl></dd><dt>SetAccessControl, <a class="indexterm" href="#requests:SetAccessControl">SetAccessControl</a></dt><dt>SetClipRectangles, <a class="indexterm" href="#requests:SetClipRectangles">SetClipRectangles</a></dt><dt>SetCloseDownMode, <a class="indexterm" href="#requests:SetCloseDownMode">SetCloseDownMode</a></dt><dt>SetDashes, <a class="indexterm" href="#requests:SetDashes">SetDashes</a></dt><dt>SetFontPath, <a class="indexterm" href="#requests:SetFontPath">SetFontPath</a></dt><dt>SetInputFocus, <a class="indexterm" href="#requests:SetInputFocus">SetInputFocus</a></dt><dt>SetModifierMapping, <a class="indexterm" href="#requests:SetModifierMapping">SetModifierMapping</a></dt><dt>SetPointerMapping, <a class="indexterm" href="#requests:SetPointerMapping">SetPointerMapping</a></dt><dt>SetScreenSaver, <a class="indexterm" href="#requests:SetScreenSaver">SetScreenSaver</a></dt><dt>SetSelectionOwner, <a class="indexterm" href="#requests:SetSelectionOwner">SetSelectionOwner</a></dt><dt>Sibling, <a class="indexterm" href="#glossary:Sibling">Glossary</a></dt><dt>Stacking order, <a class="indexterm" href="#glossary:Stacking_order">Glossary</a></dt><dt>StaticColor, <a class="indexterm" href="#glossary:StaticColor">Glossary</a></dt><dt>StaticGray, <a class="indexterm" href="#glossary:StaticGray">Glossary</a></dt><dt>Stipple, <a class="indexterm" href="#glossary:Stipple">Glossary</a></dt><dt>StoreColors, <a class="indexterm" href="#requests:StoreColors">StoreColors</a></dt><dt>StoreNamedColor, <a class="indexterm" href="#requests:StoreNamedColor">StoreNamedColor</a></dt><dt>String Equivalence, <a class="indexterm" href="#glossary:String_Equivalence">Glossary</a></dt></dl></div><div class="indexdiv"><h3>T</h3><dl><dt>Tile, <a class="indexterm" href="#glossary:Tile">Glossary</a></dt><dt>Timestamp, <a class="indexterm" href="#glossary:Timestamp">Glossary</a></dt><dt>TranslateCoordinates, <a class="indexterm" href="#requests:TranslateCoordinates">TranslateCoordinates</a></dt><dt>TrueColor, <a class="indexterm" href="#glossary:TrueColor">Glossary</a></dt><dt>Type, <a class="indexterm" href="#glossary:Type">Glossary</a></dt><dt>Types</dt><dd><dl><dt>ARC, <a class="indexterm" href="#types:ARC">Common Types</a></dt><dt>ATOM, <a class="indexterm" href="#types:ATOM">Common Types</a></dt><dt>BITGRAVITY, <a class="indexterm" href="#types:BITGRAVITY">Common Types</a></dt><dt>BITMASK, <a class="indexterm" href="#types:BITMASK">Common Types</a></dt><dt>BOOL, <a class="indexterm" href="#types:BOOL">Common Types</a></dt><dt>BUTMASK, <a class="indexterm" href="#types:BUTMASK">Common Types</a></dt><dt>BUTTON, <a class="indexterm" href="#types:BUTTON">Common Types</a></dt><dt>BYTE, <a class="indexterm" href="#types:BYTE">Common Types</a></dt><dt>CARD16, <a class="indexterm" href="#types:CARD16">Common Types</a></dt><dt>CARD32, <a class="indexterm" href="#types:CARD32">Common Types</a></dt><dt>CARD8, <a class="indexterm" href="#types:CARD8">Common Types</a></dt><dt>CHAR2B, <a class="indexterm" href="#types:CHAR2B">Common Types</a></dt><dt>COLORMAP, <a class="indexterm" href="#types:COLORMAP">Common Types</a></dt><dt>CURSOR, <a class="indexterm" href="#types:CURSOR">Common Types</a></dt><dt>DEVICEEVENT, <a class="indexterm" href="#types:DEVICEEVENT">Common Types</a></dt><dt>DRAWABLE, <a class="indexterm" href="#types:DRAWABLE">Common Types</a></dt><dt>encoding, <a class="indexterm" href="#Encoding::Common_Types">Common Types</a></dt><dt>EVENT, <a class="indexterm" href="#types:EVENT">Common Types</a></dt><dt>FONT, <a class="indexterm" href="#types:FONT">Common Types</a></dt><dt>FONTABLE, <a class="indexterm" href="#types:FONTABLE">Common Types</a></dt><dt>GCONTEXT, <a class="indexterm" href="#types:GCONTEXT">Common Types</a></dt><dt>HOST, <a class="indexterm" href="#types:HOST">Common Types</a>, <a class="indexterm" href="#address_families">ChangeHosts</a></dt><dt>INT16, <a class="indexterm" href="#types:INT16">Common Types</a></dt><dt>INT32, <a class="indexterm" href="#types:INT32">Common Types</a></dt><dt>INT8, <a class="indexterm" href="#types:INT8">Common Types</a></dt><dt>KEYBUTMASK, <a class="indexterm" href="#types:KEYBUTMASK">Common Types</a></dt><dt>KEYCODE, <a class="indexterm" href="#types:KEYCODE">Common Types</a>, <a class="indexterm" href="#keycode">Keyboards</a>, <a class="indexterm" href="#keycode_range">Server Information</a></dt><dt>KEYMASK, <a class="indexterm" href="#types:KEYMASK">Common Types</a></dt><dt>KEYSYM, <a class="indexterm" href="#types:KEYSYM">Common Types</a>, <a class="indexterm" href="#keysym">Keyboards</a>, <a class="indexterm" href="#keysym_encoding">KEYSYM Encoding</a></dt><dt>LISTofFOO, <a class="indexterm" href="#types:LISTofFOO">Common Types</a></dt><dt>LISTofVALUE, <a class="indexterm" href="#types:LISTofVALUE">Common Types</a></dt><dt>OR, <a class="indexterm" href="#types:OR">Common Types</a></dt><dt>PIXMAP, <a class="indexterm" href="#types:PIXMAP">Common Types</a></dt><dt>POINT, <a class="indexterm" href="#types:POINT">Common Types</a></dt><dt>POINTEREVENT, <a class="indexterm" href="#types:POINTEREVENT">Common Types</a></dt><dt>RECTANGLE, <a class="indexterm" href="#types:RECTANGLE">Common Types</a></dt><dt>STRING16, <a class="indexterm" href="#types:STRING16">Common Types</a></dt><dt>STRING8, <a class="indexterm" href="#types:STRING8">Common Types</a></dt><dt>TIMESTAMP, <a class="indexterm" href="#types:TIMESTAMP">Common Types</a></dt><dt>VALUE, <a class="indexterm" href="#types:VALUE">Common Types</a></dt><dt>VISUALID, <a class="indexterm" href="#types:VISUALID">Common Types</a></dt><dt>WINDOW, <a class="indexterm" href="#types:WINDOW">Common Types</a></dt><dt>WINGRAVITY, <a class="indexterm" href="#types:WINGRAVITY">Common Types</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>U</h3><dl><dt>UngrabButton, <a class="indexterm" href="#requests:UngrabButton">UngrabButton</a></dt><dt>UngrabKey, <a class="indexterm" href="#requests:UngrabKey">UngrabKey</a></dt><dt>UngrabKeyboard, <a class="indexterm" href="#requests:UngrabKeyboard">UngrabKeyboard</a></dt><dt>UngrabPointer, <a class="indexterm" href="#requests:UngrabPointer">UngrabPointer</a></dt><dt>UngrabServer, <a class="indexterm" href="#requests:UngrabServer">UngrabServer</a></dt><dt>UninstallColormap, <a class="indexterm" href="#requests:UninstallColormap">UninstallColormap</a></dt><dt>UnmapNotify, <a class="indexterm" href="#events:UnmapNotify">UnmapNotify</a></dt><dt>UnmapSubwindows, <a class="indexterm" href="#requests:UnmapSubwindows">UnmapSubwindows</a></dt><dt>UnmapWindow, <a class="indexterm" href="#requests:UnmapWindow">UnmapWindow</a></dt></dl></div><div class="indexdiv"><h3>V</h3><dl><dt>Viewable, <a class="indexterm" href="#glossary:Viewable">Glossary</a></dt><dt>VisibilityNotify, <a class="indexterm" href="#events:VisibilityNotify">VisibilityNotify</a></dt><dt>Visible, <a class="indexterm" href="#glossary:Visible">Glossary</a></dt><dt>Visual</dt><dd><dl><dt>information, <a class="indexterm" href="#visual_information">Visual Information</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>W</h3><dl><dt>WarpPointer, <a class="indexterm" href="#requests:WarpPointer">WarpPointer</a></dt><dt>Winding rule, <a class="indexterm" href="#requests:CreateGC:fill-rule">CreateGC</a></dt><dt>Window</dt><dd><dl><dt>children, <a class="indexterm" href="#glossary:Children">Glossary</a></dt><dt>gravity, <a class="indexterm" href="#requests:ConfigureWindow:gravity">ConfigureWindow</a>, <a class="indexterm" href="#glossary:Window_gravity">Glossary</a></dt><dt>InputOnly, <a class="indexterm" href="#glossary:InputOnly_window">Glossary</a></dt><dt>InputOutput, <a class="indexterm" href="#glossary:InputOutput_window">Glossary</a></dt><dt>manager, <a class="indexterm" href="#glossary:Window_manager">Glossary</a></dt><dt>parent, <a class="indexterm" href="#glossary:Parent_window">Glossary</a></dt><dt>root, <a class="indexterm" href="#glossary:Root_window">Glossary</a></dt></dl></dd></dl></div><div class="indexdiv"><h3>X</h3><dl><dt>XYFormat, <a class="indexterm" href="#bitmap-format">Server Information</a>, <a class="indexterm" href="#glossary:XYFormat">Glossary</a></dt></dl></div><div class="indexdiv"><h3>Z</h3><dl><dt>ZFormat, <a class="indexterm" href="#pixmap-formats">Server Information</a>, <a class="indexterm" href="#glossary:ZFormat">Glossary</a></dt></dl></div></div></div></div></body></html>
x11proto-core-dev 7.0.24-1 / usr / share / doc / x11proto-core-dev / x11protocol.html
