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    <title>clGetSamplerInfo</title>
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      <div class="titlepage"></div>
      <div xmlns="" class="refnamediv">
        <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">
            <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">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>
            </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">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">
                <table border="1">
                  <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="https://www.khronos.org/registry/cl/specs/opencl-2.1.pdf#page=192" target="OpenCL Spec">OpenCL Specification</a>
        </p>
      </div>
      <div class="refsect1">
        <a id="seealso"></a>
        <h2>Also see</h2>
        <p>
            <a class="citerefentry" href="clCreateSamplerWithProperties.html"><span class="citerefentry"><span class="refentrytitle">clCreateSamplerWithProperties</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 © 2007-2015 The Khronos Group Inc.
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