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<title>NVIDIA CUDA Library: cuGraphicsResourceSetMapFlags</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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<tr><td class="navtab"><a class="qindex" href="group__CUDA__GRAPHICS_g61c55e987e54558cce547240d6123078.html#g61c55e987e54558cce547240d6123078">cuGraphicsSubResourceGetMappedArray</a></td></tr>
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<a class="anchor" name="gfe96aa7747f8b11d44a6fa6a851e1b39"></a><!-- doxytag: member="cuda.h::cuGraphicsResourceSetMapFlags" ref="gfe96aa7747f8b11d44a6fa6a851e1b39" args="(CUgraphicsResource resource, unsigned int flags)" -->
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<td class="memname"><a class="el" href="group__CUDA__TYPES_g09da14df1a751dcbfeccb9cf0073d64c.html#g09da14df1a751dcbfeccb9cf0073d64c">CUresult</a> cuGraphicsResourceSetMapFlags </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__CUDA__TYPES_gc0c4e1704647178d9c5ba3be46517dcd.html#gc0c4e1704647178d9c5ba3be46517dcd">CUgraphicsResource</a> </td>
<td class="paramname"> <em>resource</em>, </td>
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<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>flags</em></td><td> </td>
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<p>
Set <code>flags</code> for mapping the graphics resource <code>resource</code>.<p>
Changes to <code>flags</code> will take effect the next time <code>resource</code> is mapped. The <code>flags</code> argument may be any of the following:<p>
<ul>
<li>CU_GRAPHICS_MAP_RESOURCE_FLAGS_NONE: Specifies no hints about how this resource will be used. It is therefore assumed that this resource will be read from and written to by CUDA kernels. This is the default value.</li><li>CU_GRAPHICS_MAP_RESOURCE_FLAGS_READ_ONLY: Specifies that CUDA kernels which access this resource will not write to this resource.</li><li>CU_GRAPHICS_MAP_RESOURCE_FLAGS_WRITE_DISCARD: Specifies that CUDA kernels which access this resource will not read from this resource and will write over the entire contents of the resource, so none of the data previously stored in the resource will be preserved.</li></ul>
<p>
If <code>resource</code> is presently mapped for access by CUDA then <a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaa240bb253a699176d9f49ee2f2c91b61b">CUDA_ERROR_ALREADY_MAPPED</a> is returned. If <code>flags</code> is not one of the above values then <a class="el" href="group__CUDA__TYPES_g0cdead942fd5028d157641eef6bdeeaa.html#gg0cdead942fd5028d157641eef6bdeeaa90696c86fcee1f536a1ec7d25867feeb">CUDA_ERROR_INVALID_VALUE</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>resource</em> </td><td>- Registered resource to set flags for </td></tr>
<tr><td valign="top"></td><td valign="top"><em>flags</em> </td><td>- Parameters for resource mapping</td></tr>
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<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#gg0cdead942fd5028d157641eef6bdeeaa90696c86fcee1f536a1ec7d25867feeb">CUDA_ERROR_INVALID_VALUE</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#gg0cdead942fd5028d157641eef6bdeeaa240bb253a699176d9f49ee2f2c91b61b">CUDA_ERROR_ALREADY_MAPPED</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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