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<title>NVIDIA CUDA Library: cuGraphicsUnmapResources</title>
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  <div class="navpath"><a class="el" href="group__CUDA__GRAPHICS.html">Graphics Interoperability</a>
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          <tr><td class="navtab"><a class="qindex" href="group__CUDA__GRAPHICS_g8a634cf4150d399f0018061580592457.html#g8a634cf4150d399f0018061580592457">cuGraphicsResourceGetMappedPointer</a></td></tr>
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<a class="anchor" name="g8e9ff25d071375a0df1cb5aee924af32"></a><!-- doxytag: member="cuda.h::cuGraphicsUnmapResources" ref="g8e9ff25d071375a0df1cb5aee924af32" args="(unsigned int count, CUgraphicsResource *resources, CUstream hStream)" -->
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          <td>(</td>
          <td class="paramtype">unsigned int&nbsp;</td>
          <td class="paramname"> <em>count</em>, </td>
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          <td class="paramtype"><a class="el" href="group__CUDA__TYPES_gc0c4e1704647178d9c5ba3be46517dcd.html#gc0c4e1704647178d9c5ba3be46517dcd">CUgraphicsResource</a> *&nbsp;</td>
          <td class="paramname"> <em>resources</em>, </td>
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          <td class="paramtype"><a class="el" href="group__CUDA__TYPES_gb946c7f02e09efd788a204718015d88a.html#gb946c7f02e09efd788a204718015d88a">CUstream</a>&nbsp;</td>
          <td class="paramname"> <em>hStream</em></td><td>&nbsp;</td>
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<p>
Unmaps the <code>count</code> graphics resources in <code>resources</code>.<p>
Once unmapped, the resources in <code>resources</code> may not be accessed by CUDA until they are mapped again.<p>
This function provides the synchronization guarantee that any CUDA work issued in <code>stream</code> before <a class="el" href="group__CUDA__GRAPHICS_g8e9ff25d071375a0df1cb5aee924af32.html#g8e9ff25d071375a0df1cb5aee924af32" title="Unmap graphics resources.">cuGraphicsUnmapResources()</a> will complete before any subsequently issued graphics work begins.<p>
If <code>resources</code> includes any duplicate entries then <a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaa0fd2e63260c6317ba943af0f7e4b8d21">CUDA_ERROR_INVALID_HANDLE</a> is returned. If any of <code>resources</code> are not presently mapped for access by CUDA then <a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaae098433b926c9afdb6b6bdf191629447">CUDA_ERROR_NOT_MAPPED</a> is returned.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>count</em>&nbsp;</td><td>- Number of resources to unmap </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>resources</em>&nbsp;</td><td>- Resources to unmap </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>hStream</em>&nbsp;</td><td>- Stream with which to synchronize</td></tr>
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</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd><a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaaa0eed720f8a87cd1c5fd1c453bc7a03d">CUDA_SUCCESS</a>, <a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaaacf52f132faf29b473cdda6061f0f44a">CUDA_ERROR_DEINITIALIZED</a>, <a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaa8feb999f0af99b4a25ab26b3866f4df8">CUDA_ERROR_NOT_INITIALIZED</a>, <a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaaa484e9af32c1e9893ff21f0e0191a12d">CUDA_ERROR_INVALID_CONTEXT</a>, <a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaa0fd2e63260c6317ba943af0f7e4b8d21">CUDA_ERROR_INVALID_HANDLE</a>, <a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaae098433b926c9afdb6b6bdf191629447">CUDA_ERROR_NOT_MAPPED</a>, <a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaac5a6ab0245179d297f1fa56ed0097183">CUDA_ERROR_UNKNOWN</a> </dd></dl>
<dl class="note" compact><dt><b>Note:</b></dt><dd>Note that this function may also return error codes from previous, asynchronous launches.</dd></dl>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="group__CUDA__GRAPHICS_gffcfd8e78d82cc4f6dd987e8bce4edb0.html#gffcfd8e78d82cc4f6dd987e8bce4edb0" title="Map graphics resources for access by CUDA.">cuGraphicsMapResources</a> </dd></dl>

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