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<div class="navpath"><a class="el" href="group__CUDART__D3D10.html">Direct3D 10 Interoperability</a>
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<a class="anchor" name="g8071f1bbd62b11e28466d5905d65205a"></a><!-- doxytag: member="cuda_d3d10_interop.h::cudaD3D10GetDevices" ref="g8071f1bbd62b11e28466d5905d65205a" args="(unsigned int *pCudaDeviceCount, int *pCudaDevices, unsigned int cudaDeviceCount, ID3D10Device *pD3D10Device, enum cudaD3D10DeviceList deviceList)" -->
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<td class="memname"><a class="el" href="group__CUDART__TYPES_gf599e5b8b829ce7db0f5216928f6ecb6.html#gf599e5b8b829ce7db0f5216928f6ecb6">cudaError_t</a> cudaD3D10GetDevices </td>
<td>(</td>
<td class="paramtype">unsigned int * </td>
<td class="paramname"> <em>pCudaDeviceCount</em>, </td>
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<td class="paramtype">int * </td>
<td class="paramname"> <em>pCudaDevices</em>, </td>
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<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>cudaDeviceCount</em>, </td>
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<td class="paramtype">ID3D10Device * </td>
<td class="paramname"> <em>pD3D10Device</em>, </td>
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<td class="paramtype">enum <a class="el" href="group__CUDART__D3D10_g1e9ffdd1c631cab046c7d7b64e187f78.html#g1e9ffdd1c631cab046c7d7b64e187f78">cudaD3D10DeviceList</a> </td>
<td class="paramname"> <em>deviceList</em></td><td> </td>
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<td>)</td>
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<p>
Returns in <code>*pCudaDeviceCount</code> the number of CUDA-compatible devices corresponding to the Direct3D 10 device <code>pD3D10Device</code>. Also returns in <code>*pCudaDevices</code> at most <code>cudaDeviceCount</code> of the the CUDA-compatible devices corresponding to the Direct3D 10 device <code>pD3D10Device</code>.<p>
If any of the GPUs being used to render <code>pDevice</code> are not CUDA capable then the call will return <a class="el" href="group__CUDART__TYPES_g3f51e3575c2178246db0a94a430e0038.html#gg3f51e3575c2178246db0a94a430e0038e942e4cbbd2bef6e92e293253f055613">cudaErrorNoDevice</a>.<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>pCudaDeviceCount</em> </td><td>- Returned number of CUDA devices corresponding to <code>pD3D10Device</code> </td></tr>
<tr><td valign="top"></td><td valign="top"><em>pCudaDevices</em> </td><td>- Returned CUDA devices corresponding to <code>pD3D10Device</code> </td></tr>
<tr><td valign="top"></td><td valign="top"><em>cudaDeviceCount</em> </td><td>- The size of the output device array <code>pCudaDevices</code> </td></tr>
<tr><td valign="top"></td><td valign="top"><em>pD3D10Device</em> </td><td>- Direct3D 10 device to query for CUDA devices </td></tr>
<tr><td valign="top"></td><td valign="top"><em>deviceList</em> </td><td>- The set of devices to return. This set may be <a class="el" href="group__CUDART__D3D10_g1e9ffdd1c631cab046c7d7b64e187f78.html#gg1e9ffdd1c631cab046c7d7b64e187f78e91df6bb0bf994be807d0acec5694f30">cudaD3D10DeviceListAll</a> for all devices, <a class="el" href="group__CUDART__D3D10_g1e9ffdd1c631cab046c7d7b64e187f78.html#gg1e9ffdd1c631cab046c7d7b64e187f78141da82f40280c96160f2346d1616699">cudaD3D10DeviceListCurrentFrame</a> for the devices used to render the current frame (in SLI), or <a class="el" href="group__CUDART__D3D10_g1e9ffdd1c631cab046c7d7b64e187f78.html#gg1e9ffdd1c631cab046c7d7b64e187f78b9214ae4b1b2c1899b980071c20a65ba">cudaD3D10DeviceListNextFrame</a> for the devices used to render the next frame (in SLI).</td></tr>
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<dl class="return" compact><dt><b>Returns:</b></dt><dd><a class="el" href="group__CUDART__TYPES_g3f51e3575c2178246db0a94a430e0038.html#gg3f51e3575c2178246db0a94a430e0038e355f04607d824883b4a50662830d591">cudaSuccess</a>, <a class="el" href="group__CUDART__TYPES_g3f51e3575c2178246db0a94a430e0038.html#gg3f51e3575c2178246db0a94a430e0038e942e4cbbd2bef6e92e293253f055613">cudaErrorNoDevice</a>, <a class="el" href="group__CUDART__TYPES_g3f51e3575c2178246db0a94a430e0038.html#gg3f51e3575c2178246db0a94a430e00382e491daacef266c7b3e3c1e140a6133c">cudaErrorUnknown</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__CUDART__INTEROP_g1d45ac44d1affe17fb356e0b7a0b0560.html#g1d45ac44d1affe17fb356e0b7a0b0560" title="Unregisters a graphics resource for access by CUDA.">cudaGraphicsUnregisterResource</a>, <a class="el" href="group__CUDART__INTEROP_gb7064fb72e54d89d0666e192b45d35cc.html#gb7064fb72e54d89d0666e192b45d35cc" title="Map graphics resources for access by CUDA.">cudaGraphicsMapResources</a>, <a class="el" href="group__CUDART__INTEROP_g09f772ed8c6e8e03f396a8895fc42050.html#g09f772ed8c6e8e03f396a8895fc42050" title="Get an array through which to access a subresource of a mapped graphics resource...">cudaGraphicsSubResourceGetMappedArray</a>, <a class="el" href="group__CUDART__INTEROP_ge7f893864a3d38a630e71a99f5a4e17f.html#ge7f893864a3d38a630e71a99f5a4e17f" title="Get an device pointer through which to access a mapped graphics resource.">cudaGraphicsResourceGetMappedPointer</a> </dd></dl>
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