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        <a xmlns="http://www.w3.org/1999/xhtml" id="clGetSamplerInfo"></a>
        <h1>
            clGetSamplerInfo
        </h1>
        <p>
            Returns information about the sampler object.
        </p>
      </div>
      <div class="refsynopsisdiv">
        <h2></h2>
        <div class="funcsynopsis">
          <table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0">
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              <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">clGetSamplerInfo</strong>
          (</code>
                <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="pagedisplay">cl_sampler</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">sampler</var>, </td>
              </td>
            </tr>
            <tr valign="top">
              <td> </td>
              <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="enums.html#cl_sampler_info" target="pagedisplay">cl_sampler_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>
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              <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>
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      <div class="refsect1">
        <a id="parameters"></a>
        <h2>Parameters</h2>
        <div class="variablelist">
          <dl class="variablelist">
            <dt>
              <span class="term">
                <code class="varname">sampler</code>
              </span>
            </dt>
            <dd>
              <p>Specifies the sampler being queried.</p>
            </dd>
            <dt>
              <span class="term">
                <code class="varname">param_name</code>
              </span>
            </dt>
            <dd>
              <p>
              Specifies the information to query. The list of supported
              <code class="varname">param_name</code> types and the information returned in
              <code class="varname">param_value</code> by <code class="function">clGetSamplerInfo</code> is
              described in the table below.
            </p>
              <div class="informaltable">
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                  <colgroup>
                    <col align="left" class="col1" />
                    <col align="left" class="col2" />
                  </colgroup>
                  <thead>
                    <tr>
                      <th align="left">cl_sampler_info</th>
                      <th align="left">Return Type and Info. returned in <code class="varname">param_value</code></th>
                    </tr>
                  </thead>
                  <tbody>
                    <tr>
                      <td align="left">
                        <code class="constant">CL_SAMPLER_REFERENCE_COUNT</code>
                      </td>
                      <td align="left">
                      Return type: cl_uint

                      <p>
                        Return the <code class="varname">sampler</code> reference count. The reference
                        count returned should be considered immediately stale. It is unsuitable
                        for general use in applications. This feature is provided for identifying
                        memory leaks.
                      </p>
                    </td>
                    </tr>
                    <tr>
                      <td align="left">
                        <code class="constant">CL_SAMPLER_CONTEXT</code>
                      </td>
                      <td align="left">
                      Return type: cl_context

                      <p>
                        Return the context specified when the sampler is created.
                      </p>
                    </td>
                    </tr>
                    <tr>
                      <td align="left">
                        <code class="constant">CL_SAMPLER_NORMALIZED_COORDS</code>
                      </td>
                      <td align="left">
                      Return type: cl_bool

                      <p>
                        Return the normalized coords value associated with
                        <code class="varname">sampler</code>.
                      </p>
                    </td>
                    </tr>
                    <tr>
                      <td align="left">
                        <code class="constant">CL_SAMPLER_ADDRESSING_MODE</code>
                      </td>
                      <td align="left">
                      Return type: cl_addressing_mode

                      <p>
                        Return the addressing mode value associated with
                        <code class="varname">sampler</code>.
                      </p>
                    </td>
                    </tr>
                    <tr>
                      <td align="left">
                        <code class="constant">CL_SAMPLER_FILTER_MODE</code>
                      </td>
                      <td align="left">
                      Return type: cl_filter_mode

                      <p>
                        Return the filter mode value associated with <code class="varname">sampler</code>.
                      </p>
                    </td>
                    </tr>
                  </tbody>
                </table>
              </div>
            </dd>
            <dt>
              <span class="term"> <code class="varname">param_value </code> </span>
            </dt>
            <dd>
              <p>
              A pointer to memory where the appropriate result being queried is returned. 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 must be ≥ size of return type as
              described in the table above.
            </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 copied to <code class="varname">param_value</code>.
              If <code class="varname">param_value_size_ret</code> is NULL, it is ignored.
            </p>
            </dd>
          </dl>
        </div>
      </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 one of the following errors:
        </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_VALUE</span> if <code class="varname">param_name</code> is not
              valid, or if size in bytes specified by <code class="varname">param_value_size</code>
              is &lt; size of return type as described in the table above and
              <code class="varname">param_value</code> is not NULL
            </li>
            <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_SAMPLER</span> if   <code class="varname">sampler</code> is a
              not a valid sampler object.
            </li>
            <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_OUT_OF_RESOURCES</span> if there is a failure to allocate
              resources required by the OpenCL implementation on the device.
            </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=130" target="OpenCL Spec">OpenCL Specification</a>
        </p>
      </div>
      <div class="refsect1">
        <a id="seealso"></a>
        <h2>Also see</h2>
        <p>
            <a class="citerefentry" href="clCreateSampler.html"><span class="citerefentry"><span class="refentrytitle">clCreateSampler</span></span></a>,
            <a class="citerefentry" href="clRetainSampler.html"><span class="citerefentry"><span class="refentrytitle">clRetainSampler</span></span></a>,
            <a class="citerefentry" href="clReleaseSampler.html"><span class="citerefentry"><span class="refentrytitle">clReleaseSampler</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
permit persons to whom the Materials are furnished to do so, subject to
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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