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|  | <title>clGetKernelInfo</title> | 
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|  | <div xmlns="" class="refnamediv"> | 
|  | <a xmlns="http://www.w3.org/1999/xhtml" id="clGetKernelInfo"></a> | 
|  | <h1> | 
|  | clGetKernelInfo | 
|  | </h1> | 
|  | <p> | 
|  | Returns information about the kernel 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">clGetKernelInfo</strong> | 
|  | (</code> | 
|  | <td> | 
|  | <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="pagedisplay">cl_kernel</a> | 
|  | <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">kernel</var> | 
|  | , </td> | 
|  | </td> | 
|  | </tr> | 
|  | <tr valign="top"> | 
|  | <td> </td> | 
|  | <td> | 
|  | <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="#cl_kernel_info">cl_kernel_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"> kernel </code> </span> | 
|  | </dt> | 
|  | <dd> | 
|  | <p> | 
|  | Specifies the kernel object 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">clGetKernelInfo</code> | 
|  | is described in the table below. | 
|  | </p> | 
|  | </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> | 
|  | Used to specify 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 below. | 
|  | </p> | 
|  | <div class="informaltable"> | 
|  | <a id="cl_kernel_info"></a> | 
|  | <table border="1"> | 
|  | <colgroup> | 
|  | <col align="left" class="col1" /> | 
|  | <col align="left" class="col2" /> | 
|  | <col align="left" class="col3" /> | 
|  | </colgroup> | 
|  | <thead> | 
|  | <tr> | 
|  | <th align="left">cl_kernel_info</th> | 
|  | <th align="left">Return Type</th> | 
|  | <th align="left">Info. returned in <code class="varname">param_value</code></th> | 
|  | </tr> | 
|  | </thead> | 
|  | <tbody> | 
|  | <tr> | 
|  | <td align="left"> | 
|  | <code class="constant">CL_KERNEL_FUNCTION_NAME</code> | 
|  | </td> | 
|  | <td align="left">char[]</td> | 
|  | <td align="left"> | 
|  | Return the kernel function name. | 
|  | </td> | 
|  | </tr> | 
|  | <tr> | 
|  | <td align="left"> | 
|  | <code class="constant">CL_KERNEL_NUM_ARGS</code> | 
|  | </td> | 
|  | <td align="left">cl_uint</td> | 
|  | <td align="left"> | 
|  | Return the number of arguments to <code class="varname">kernel</code>. | 
|  | </td> | 
|  | </tr> | 
|  | <tr> | 
|  | <td align="left"> | 
|  | <code class="constant">CL_KERNEL_REFERENCE_COUNT</code> | 
|  | </td> | 
|  | <td align="left">cl_uint</td> | 
|  | <td align="left"> | 
|  | <p> | 
|  | Return the <code class="varname">kernel</code> reference count. | 
|  | </p> | 
|  | <p> | 
|  | 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_KERNEL_CONTEXT</code> | 
|  | </td> | 
|  | <td align="left">cl_context</td> | 
|  | <td align="left"> | 
|  | Return the context associated with <code class="varname">kernel</code>. | 
|  | </td> | 
|  | </tr> | 
|  | <tr> | 
|  | <td align="left"> | 
|  | <code class="constant">CL_KERNEL_PROGRAM</code> | 
|  | </td> | 
|  | <td align="left">cl_program</td> | 
|  | <td align="left"> | 
|  | Return the program object associated with <code class="varname">kernel</code>. | 
|  | </td> | 
|  | </tr> | 
|  | <tr> | 
|  | <td align="left"> | 
|  | <code class="constant">CL_KERNEL_ATTRIBUTES</code> | 
|  | </td> | 
|  | <td align="left">char[]</td> | 
|  | <td align="left"> | 
|  | <p> | 
|  | Returns any attributes specified using the | 
|  | __<a class="citerefentry" href="attribute.html"><span class="citerefentry"><span class="refentrytitle">attribute</span></span></a>__ | 
|  | qualifier with the kernel function declaration in | 
|  | the program source. These attributes include those on the | 
|  | __<a class="citerefentry" href="attribute.html"><span class="citerefentry"><span class="refentrytitle">attribute</span></span></a>__ | 
|  | page and other attributes supported by an implementation. | 
|  | </p> | 
|  |  | 
|  | <p> | 
|  | Attributes are returned as they were declared inside | 
|  | __<a class="citerefentry" href="attribute.html"><span class="citerefentry"><span class="refentrytitle">attribute</span></span></a>__((...)), | 
|  | with any surrounding whitespace and embedded newlines | 
|  | removed. When multiple attributes are present, they are | 
|  | returned as a single, space delimited string. | 
|  | </p> | 
|  | </td> | 
|  | </tr> | 
|  | </tbody> | 
|  | </table> | 
|  | </div> | 
|  | </dd> | 
|  | <dt> | 
|  | <span class="term"> <code class="varname"> param_value_size_ret </code> </span> | 
|  | </dt> | 
|  | <dd> | 
|  | <p> | 
|  | 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 < 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_KERNEL</span> if <code class="varname">kernel</code> | 
|  | is not a valid kernel 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-2.0.pdf#page=217" target="OpenCL Spec">OpenCL Specification</a> | 
|  | </p> | 
|  | </div> | 
|  | <div class="refsect1"> | 
|  | <a id="seealso"></a> | 
|  | <h2>Also see</h2> | 
|  | <p> | 
|  | <a class="citerefentry" href="clCreateKernel.html"><span class="citerefentry"><span class="refentrytitle">clCreateKernel</span></span></a>, | 
|  | <a class="citerefentry" href="clCreateKernelsInProgram.html"><span class="citerefentry"><span class="refentrytitle">clCreateKernelsInProgram</span></span></a>, | 
|  | <a class="citerefentry" href="clGetKernelArgInfo.html"><span class="citerefentry"><span class="refentrytitle">clGetKernelArgInfo</span></span></a>, | 
|  | <a class="citerefentry" href="clRetainKernel.html"><span class="citerefentry"><span class="refentrytitle">clRetainKernel</span></span></a>, | 
|  | <a class="citerefentry" href="clReleaseKernel.html"><span class="citerefentry"><span class="refentrytitle">clReleaseKernel</span></span></a>, | 
|  | <a class="citerefentry" href="clSetKernelArg.html"><span class="citerefentry"><span class="refentrytitle">clSetKernelArg</span></span></a>, | 
|  | <a class="citerefentry" href="clGetKernelWorkGroupInfo.html"><span class="citerefentry"><span class="refentrytitle">clGetKernelWorkGroupInfo</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 © 2007-2013 The Khronos Group Inc. | 
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