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<title>clGetPlatformInfo</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1" />
<meta name="keywords" content="clGetPlatformInfo" />
</head>
<body>
<div class="refentry">
<a id="idm1"></a>
<div class="titlepage"></div>
<div xmlns="" class="refnamediv">
<a xmlns="http://www.w3.org/1999/xhtml" id="clGetPlatformInfo"></a>
<h1>clGetPlatformInfo</h1>
<p>Get specific information about the OpenCL platform.</p>
</div>
<div class="refsynopsisdiv">
<h2></h2>
<div class="funcsynopsis">
<table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0">
<tr valign="bottom">
<td>
<code xmlns="http://www.w3.org/1999/xhtml" class="funcdef"><a class="link" href="scalarDataTypes.html" target="pagedisplay">cl_int</a> <strong class="fsfunc">clGetPlatformInfo</strong>(</code>
<td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="pagedisplay">cl_platform_id</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">platform</var>, </td>
</td>
</tr>
<tr valign="top">
<td> </td>
<td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="enums.html#cl_platform_info" target="pagedisplay">cl_platform_info</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">param_name</var>, </td>
</tr>
<tr valign="top">
<td> </td>
<td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">size_t</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">param_value_size</var>, </td>
</tr>
<tr valign="top">
<td> </td>
<td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">void</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*param_value</var>, </td>
</tr>
<tr valign="top">
<td> </td>
<td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">size_t</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*param_value_size_ret</var><code>)</code></td>
</tr>
</table>
</div>
</div>
<div class="refsect1">
<a id="parameters"></a>
<h2>Parameters</h2>
<div class="variablelist">
<dl class="variablelist">
<dt>
<span class="term">
<code class="varname">platform</code>
</span>
</dt>
<dd>
<p>
The platform ID returned by
<a class="citerefentry" href="clGetPlatformIDs.html"><span class="citerefentry"><span class="refentrytitle">clGetPlatformIDs</span></span></a>
or can be NULL. If <code class="varname">platform</code> is NULL, the behavior is
implementation-defined.
</p>
</dd>
<dt>
<span class="term">
<code class="varname">param_name</code>
</span>
</dt>
<dd>
<p>
An enumeration constant that identifies the platform information being
queried. It can be one of the values specified in the table below.
</p>
</dd>
<dt>
<span class="term">
<code class="varname">param_value</code>
</span>
</dt>
<dd>
<p>
A pointer to memory location where appropriate values for a
given <code class="varname">param_value</code> will be returned. Possible
<code class="varname">param_value</code> values returned are listed in the table
below. If <code class="varname">param_value</code> is NULL, it is ignored.
</p>
</dd>
<dt>
<span class="term">
<code class="varname">param_value_size</code>
</span>
</dt>
<dd>
<p>
Specifies the size in bytes of memory pointed to by
<code class="varname">param_value</code>. This size in bytes must be ≥ size of return
type specified in the table below.
</p>
</dd>
<dt>
<span class="term">
<code class="varname">param_value_size_ret</code>
</span>
</dt>
<dd>
<p>
Returns the actual size in bytes of data being queried by
<code class="varname">param_value</code>. If <code class="varname">param_value_size_ret</code>
is NULL, it is ignored
</p>
</dd>
<dt>
<span class="term"></span>
</dt>
<dd>
<p>
OpenCL Platform Queries
</p>
<div class="informaltable">
<table class="informaltable" border="1">
<colgroup>
<col align="left" class="col1" />
<col align="left" class="col2" />
<col align="left" class="col2" />
</colgroup>
<thead>
<tr>
<th align="left">cl_platform_info</th>
<th align="left">Return Type</th>
<th align="left">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left">
<code class="constant">CL_PLATFORM_PROFILE</code>
</td>
<td align="left">char[]</td>
<td align="left">
<p>
OpenCL profile string. Returns the profile name supported by the implementation. The
profile name returned can be one of the following strings:
</p>
<p>
FULL_PROFILE - if the implementation supports the OpenCL specification (functionality
defined as part of the core specification and does not require any extensions to
be supported).
</p>
<p>
EMBEDDED_PROFILE - if the implementation supports the OpenCL embedded profile. The
embedded profile is defined to be a subset for each version of OpenCL.
</p> </td>
</tr>
<tr>
<td align="left">
<code class="constant">CL_PLATFORM_VERSION</code>
</td>
<td align="left">char[]</td>
<td align="left">
<p>OpenCL version string. Returns the OpenCL version supported by the
implementation. This version string has the following format:
</p>
<p>
<code class="varname">OpenCL<space><major_version.minor_version><space><platform-specific
information></code>
</p>
<p>
The <code class="varname">major_version.minor_version</code> value returned will be 1.2.
</p>
</td>
</tr>
<tr>
<td align="left">
<code class="constant">CL_PLATFORM_NAME</code>
</td>
<td align="left">char[]</td>
<td align="left">Platform name string.</td>
</tr>
<tr>
<td align="left">
<code class="constant">CL_PLATFORM_VENDOR</code>
</td>
<td align="left">char[]</td>
<td align="left">Platform vendor string.</td>
</tr>
<tr>
<td align="left">
<code class="constant">CL_PLATFORM_EXTENSIONS</code>
</td>
<td align="left">char[]</td>
<td align="left">
<p>Returns a space-separated list of extension names (the extension names
themselves do not contain any spaces) supported by the platform. Extensions
defined here must be supported by all devices associated with this platform.
</p></td>
</tr>
</tbody>
</table>
</div>
</dd>
</dl>
</div>
</div>
<div class="refsect1">
<a id="notes"></a>
<h2>Notes</h2>
<p>
A null terminated string is returned by OpenCL query function calls if the return
type of the information being queried is a char[].
</p>
</div>
<div class="refsect1">
<a id="errors"></a>
<h2>Errors</h2>
<p>
Returns <span class="errorname">CL_SUCCESS</span> if the function is executed
successfully. Otherwise, it returns the following:
</p>
<div class="itemizedlist">
<ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_PLATFORM</span> if <code class="varname">platform</code> is not a valid platform.
</li>
<li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_VALUE</span> if <code class="varname">param_name</code> is not one of
the supported values or if size in bytes specified by <code class="varname">param_value_size</code>
is less than size of return type and <code class="varname">param_value</code> is not a NULL value.
</li>
<li class="listitem" style="list-style-type: disc"><span class="errorname">CL_OUT_OF_HOST_MEMORY</span> if there is a failure to allocate
resources required by the OpenCL implementation on the host.
</li>
</ul>
</div>
</div>
<div class="refsect1">
<a id="specification"></a>
<h2>Specification</h2>
<p><img src="pdficon_small1.gif" />
<a href="http://www.khronos.org/registry/cl/specs/opencl-1.2.pdf#page=33" target="OpenCL Spec">OpenCL Specification</a>
</p>
</div>
<div class="refsect1">
<a id="seealso"></a>
<h2>Also see</h2>
<p>
<a class="citerefentry" href="clGetPlatformIDs.html"><span class="citerefentry"><span class="refentrytitle">clGetPlatformIDs</span></span></a>
</p>
</div>
<div xmlns="" class="refsect3" lang="en" xml:lang="en"><a xmlns="http://www.w3.org/1999/xhtml" id="Copyright"></a><h4 xmlns="http://www.w3.org/1999/xhtml"></h4><img xmlns="http://www.w3.org/1999/xhtml" src="KhronosLogo.jpg" /><p xmlns="http://www.w3.org/1999/xhtml"></p>Copyright © 2007-2011 The Khronos Group Inc.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and/or associated documentation files (the
"Materials"), to deal in the Materials without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Materials, and to
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the condition that this copyright notice and permission notice shall be included
in all copies or substantial portions of the Materials.
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