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<div class="section-link"><a href="api-sync-behavior.html#api-sync-behavior">1. API synchronization behavior </a></div>
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<div class="section-link"><a href="group__CUDART__DEVICE.html#group__CUDART__DEVICE">3.1. Device Management</a></div>
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<div class="section-link"><a href="group__CUDART__ERROR.html#group__CUDART__ERROR">3.3. Error Handling</a></div>
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<div class="section-link"><a href="group__CUDART__STREAM.html#group__CUDART__STREAM">3.4. Stream Management</a></div>
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<div class="section-link"><a href="group__CUDART__OCCUPANCY.html#group__CUDART__OCCUPANCY">3.7. Occupancy</a></div>
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<div class="section-link"><a href="group__CUDART__MEMORY.html#group__CUDART__MEMORY">3.8. Memory Management</a></div>
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<div class="section-link"><a href="group__CUDART__PEER.html#group__CUDART__PEER">3.10. Peer Device Memory Access</a></div>
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<div class="section-link"><a href="group__CUDART__OPENGL.html#group__CUDART__OPENGL">3.11. OpenGL Interoperability</a></div>
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<div class="section-link"><a href="group__CUDART__OPENGL__DEPRECATED.html#group__CUDART__OPENGL__DEPRECATED">3.12. OpenGL Interoperability [DEPRECATED]</a></div>
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<div class="section-link"><a href="group__CUDART__D3D9.html#group__CUDART__D3D9">3.13. Direct3D 9 Interoperability</a></div>
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<div class="section-link"><a href="group__CUDART__D3D9__DEPRECATED.html#group__CUDART__D3D9__DEPRECATED">3.14. Direct3D 9 Interoperability [DEPRECATED]</a></div>
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<div class="section-link"><a href="group__CUDART__D3D10.html#group__CUDART__D3D10">3.15. Direct3D 10 Interoperability</a></div>
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<div class="section-link"><a href="group__CUDART__D3D10__DEPRECATED.html#group__CUDART__D3D10__DEPRECATED">3.16. Direct3D 10 Interoperability [DEPRECATED]</a></div>
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<div class="section-link"><a href="group__CUDART__D3D11.html#group__CUDART__D3D11">3.17. Direct3D 11 Interoperability</a></div>
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<div class="section-link"><a href="group__CUDART__D3D11__DEPRECATED.html#group__CUDART__D3D11__DEPRECATED">3.18. Direct3D 11 Interoperability [DEPRECATED]</a></div>
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<div class="section-link"><a href="group__CUDART__VDPAU.html#group__CUDART__VDPAU">3.19. VDPAU Interoperability</a></div>
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<div class="section-link"><a href="group__CUDART__INTEROP.html#group__CUDART__INTEROP">3.20. Graphics Interoperability</a></div>
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<div class="section-link"><a href="group__CUDART__TEXTURE.html#group__CUDART__TEXTURE">3.21. Texture Reference Management</a></div>
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<div class="section-link"><a href="group__CUDART__SURFACE.html#group__CUDART__SURFACE">3.22. Surface Reference Management</a></div>
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<div class="section-link"><a href="group__CUDART__TYPES.html#group__CUDART__TYPES">3.29. Data types used by CUDA Runtime</a></div>
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<div class="section-link"><a href="annotated.html#annotated">4. Data Structures</a></div>
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<div class="section-link"><a href="class____cudaOccupancyB2DHelper.html#class____cudaOccupancyB2DHelper">4.1. __cudaOccupancyB2DHelper</a></div>
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<div class="section-link"><a href="structcudaDeviceProp.html#structcudaDeviceProp">4.3. cudaDeviceProp</a></div>
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<div class="section-link"><a href="structcudaFuncAttributes.html#structcudaFuncAttributes">4.5. cudaFuncAttributes</a></div>
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<div class="section-link"><a href="structcudaIpcEventHandle__t.html#structcudaIpcEventHandle__t">4.6. cudaIpcEventHandle_t</a></div>
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<div class="section-link"><a href="structcudaIpcMemHandle__t.html#structcudaIpcMemHandle__t">4.7. cudaIpcMemHandle_t</a></div>
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<div class="section-link"><a href="structcudaMemcpy3DPeerParms.html#structcudaMemcpy3DPeerParms">4.9. cudaMemcpy3DPeerParms</a></div>
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<div class="section-link"><a href="structcudaPitchedPtr.html#structcudaPitchedPtr">4.10. cudaPitchedPtr</a></div>
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<div class="section-link"><a href="structcudaResourceViewDesc.html#structcudaResourceViewDesc">4.14. cudaResourceViewDesc</a></div>
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<div class="section-link"><a href="structtextureReference.html#structtextureReference">4.17. textureReference</a></div>
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<div class="section-link"><a href="functions.html#functions">5. Data Fields</a></div>
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<div class="topic reference apiRef apiPackage cppModule" id="group__CUDART__D3D9"><a name="group__CUDART__D3D9" shape="rect">
<!-- --></a><h2 class="topictitle2 cppModule">3.13. Direct3D 9 Interoperability</h2>
<div class="section">
<p>This section describes the Direct3D 9 interoperability functions of the CUDA runtime application programming interface. Note
that mapping of Direct3D 9 resources is performed with the graphics API agnostic, resource mapping interface described in
<a class="xref" href="group__CUDART__INTEROP.html#group__CUDART__INTEROP" shape="rect">Graphics Interopability</a>.
</p>
</div>
<h3 class="fake_sectiontitle member_header">Enumerations</h3>
<dl class="members">
<dt><span class="member_type">enum </span><span class="member_name"><a href="#group__CUDART__D3D9_1g93e3d8aabc986f1799a2754135e31379" shape="rect">cudaD3D9DeviceList</a></span></dt>
<dd class="shortdesc"><span></span><span class="desc"></span></dd>
</dl>
<h3 class="fake_sectiontitle member_header">Functions</h3>
<dl class="members">
<dt><span class="member_type"><a href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gf599e5b8b829ce7db0f5216928f6ecb6" title="" shape="rect">cudaError_t</a> </span><span class="member_name"><a href="#group__CUDART__D3D9_1gce3447041e9b21679501dfd5d54d0475" shape="rect">cudaD3D9GetDevice</a> ( int*<span> </span><span class="keyword keyword apiItemName">device</span>, const char*<span> </span><span class="keyword keyword apiItemName">pszAdapterName</span> ) </span></dt>
<dd class="shortdesc"><span></span><span class="desc">Gets the device number for an adapter. </span></dd>
<dt><span class="member_type"><a href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gf599e5b8b829ce7db0f5216928f6ecb6" title="" shape="rect">cudaError_t</a> </span><span class="member_name"><a href="#group__CUDART__D3D9_1g3e0de372020bba09fe032a956736dd27" shape="rect">cudaD3D9GetDevices</a> ( unsigned int*<span> </span><span class="keyword keyword apiItemName">pCudaDeviceCount</span>, int*<span> </span><span class="keyword keyword apiItemName">pCudaDevices</span>, unsigned int <span> </span><span class="keyword keyword apiItemName">cudaDeviceCount</span>, IDirect3DDevice9*<span> </span><span class="keyword keyword apiItemName">pD3D9Device</span>, <a href="group__CUDART__D3D9.html#group__CUDART__D3D9_1g93e3d8aabc986f1799a2754135e31379" title="" shape="rect">cudaD3D9DeviceList</a><span> </span><span class="keyword keyword apiItemName">deviceList</span> ) </span></dt>
<dd class="shortdesc"><span></span><span class="desc">Gets the CUDA devices corresponding to a Direct3D 9 device. </span></dd>
<dt><span class="member_type"><a href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gf599e5b8b829ce7db0f5216928f6ecb6" title="" shape="rect">cudaError_t</a> </span><span class="member_name"><a href="#group__CUDART__D3D9_1g18e9449a409a1d3d606a52cbd73ad235" shape="rect">cudaD3D9GetDirect3DDevice</a> ( IDirect3DDevice9**<span> </span><span class="keyword keyword apiItemName">ppD3D9Device</span> ) </span></dt>
<dd class="shortdesc"><span></span><span class="desc">Gets the Direct3D device against which the current CUDA context was created. </span></dd>
<dt><span class="member_type"><a href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gf599e5b8b829ce7db0f5216928f6ecb6" title="" shape="rect">cudaError_t</a> </span><span class="member_name"><a href="#group__CUDART__D3D9_1g3b7a9c5a5f249fa1f8fb5743304474b5" shape="rect">cudaD3D9SetDirect3DDevice</a> ( IDirect3DDevice9*<span> </span><span class="keyword keyword apiItemName">pD3D9Device</span>, int <span> </span><span class="keyword keyword apiItemName">device</span> = <span class="ph ph apiData">-1</span> ) </span></dt>
<dd class="shortdesc"><span></span><span class="desc">Sets the Direct3D 9 device to use for interoperability with a CUDA device. </span></dd>
<dt><span class="member_type"><a href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gf599e5b8b829ce7db0f5216928f6ecb6" title="" shape="rect">cudaError_t</a> </span><span class="member_name"><a href="#group__CUDART__D3D9_1gbe1082b566be4ab414bf69047449ad93" shape="rect">cudaGraphicsD3D9RegisterResource</a> ( cudaGraphicsResource**<span> </span><span class="keyword keyword apiItemName">resource</span>, IDirect3DResource9*<span> </span><span class="keyword keyword apiItemName">pD3DResource</span>, unsigned int <span> </span><span class="keyword keyword apiItemName">flags</span> ) </span></dt>
<dd class="shortdesc"><span></span><span class="desc">Register a Direct3D 9 resource for access by CUDA. </span></dd>
</dl>
<div class="description">
<h3 class="sectiontitle">Enumerations</h3>
<dl class="description">
<dt class="description"><a name="group__CUDART__D3D9_1g93e3d8aabc986f1799a2754135e31379" id="group__CUDART__D3D9_1g93e3d8aabc986f1799a2754135e31379" shape="rect">
<!-- --></a><span>enum cudaD3D9DeviceList</span></dt>
<dd class="description">
<div class="section">
<p>CUDA devices corresponding to a D3D9 device </p>
</div>
<div class="enum-members">
<h6 class="enumerator_header">
Values
</h6>
<dl class="enumerator">
<dt><span class="enum-member-name-def">cudaD3D9DeviceListAll = <span class="ph ph apiData">1</span></span></dt>
<dd>The CUDA devices for all GPUs used by a D3D9 device </dd>
<dt><span class="enum-member-name-def">cudaD3D9DeviceListCurrentFrame = <span class="ph ph apiData">2</span></span></dt>
<dd>The CUDA devices for the GPUs used by a D3D9 device in its currently rendering frame </dd>
<dt><span class="enum-member-name-def">cudaD3D9DeviceListNextFrame = <span class="ph ph apiData">3</span></span></dt>
<dd>The CUDA devices for the GPUs to be used by a D3D9 device in the next frame </dd>
</dl>
</div>
</dd>
</dl>
</div>
<div class="description">
<h3 class="sectiontitle">Functions</h3>
<dl class="description">
<dt class="description"><a name="group__CUDART__D3D9_1gce3447041e9b21679501dfd5d54d0475" id="group__CUDART__D3D9_1gce3447041e9b21679501dfd5d54d0475" shape="rect">
<!-- --></a><span><a href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gf599e5b8b829ce7db0f5216928f6ecb6" title="" shape="rect">cudaError_t</a> cudaD3D9GetDevice ( int*<span> </span><span class="keyword keyword apiItemName">device</span>, const char*<span> </span><span class="keyword keyword apiItemName">pszAdapterName</span> ) </span></dt>
<dd class="description">
<div class="section">Gets the device number for an adapter. </div>
<div class="section">
<h6 class="parameter_header">
Parameters
</h6>
<dl class="table-display-params">
<dt><tt class="code"><span class="keyword keyword apiItemName">device</span></tt></dt>
<dd>- Returns the device corresponding to pszAdapterName </dd>
<dt><tt class="code"><span class="keyword keyword apiItemName">pszAdapterName</span></tt></dt>
<dd>- D3D9 adapter to get device for</dd>
</dl>
</div>
<div class="section">
<h6 class="return_header">Returns</h6>
<p class="return"><a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e0038e355f04607d824883b4a50662830d591" shape="rect">cudaSuccess</a>, <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e00383e8aef5398ee38e28ed41e357b48917c" shape="rect">cudaErrorInvalidValue</a>, <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e00382e491daacef266c7b3e3c1e140a6133c" shape="rect">cudaErrorUnknown</a></p>
</div>
<div class="section">
<h6 class="description_header">Description</h6>
<p>Returns in <tt class="ph tt code">*device</tt> the CUDA-compatible device corresponding to the adapter name <tt class="ph tt code">pszAdapterName</tt> obtained from EnumDisplayDevices or IDirect3D9::GetAdapterIdentifier(). If no device on the adapter with name <tt class="ph tt code">pszAdapterName</tt> is CUDA-compatible then the call will fail.
</p>
<p class="p"></p>
<p class="p"></p>
<p class="p">
<div class="note note"><span class="notetitle">Note:</span><p class="p">Note that this function may also return error codes from previous, asynchronous launches.</p>
</div>
</p>
<p class="p"></p>
<p class="p apiDesc_subtitle"><strong class="ph b">See also:</strong></p>
<p class="p see_subsection"><a class="xref" href="group__CUDART__D3D9.html#group__CUDART__D3D9_1g3b7a9c5a5f249fa1f8fb5743304474b5" title="Sets the Direct3D 9 device to use for interoperability with a CUDA device." shape="rect">cudaD3D9SetDirect3DDevice</a>, <a class="xref" href="group__CUDART__D3D9.html#group__CUDART__D3D9_1gbe1082b566be4ab414bf69047449ad93" title="Register a Direct3D 9 resource for access by CUDA." shape="rect">cudaGraphicsD3D9RegisterResource</a>,
</p>
<p class="p"></p>
</div>
</dd>
<dt class="description"><a name="group__CUDART__D3D9_1g3e0de372020bba09fe032a956736dd27" id="group__CUDART__D3D9_1g3e0de372020bba09fe032a956736dd27" shape="rect">
<!-- --></a><span><a href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gf599e5b8b829ce7db0f5216928f6ecb6" title="" shape="rect">cudaError_t</a> cudaD3D9GetDevices ( unsigned int*<span> </span><span class="keyword keyword apiItemName">pCudaDeviceCount</span>, int*<span> </span><span class="keyword keyword apiItemName">pCudaDevices</span>, unsigned int <span> </span><span class="keyword keyword apiItemName">cudaDeviceCount</span>, IDirect3DDevice9*<span> </span><span class="keyword keyword apiItemName">pD3D9Device</span>, <a href="group__CUDART__D3D9.html#group__CUDART__D3D9_1g93e3d8aabc986f1799a2754135e31379" title="" shape="rect">cudaD3D9DeviceList</a><span> </span><span class="keyword keyword apiItemName">deviceList</span> ) </span></dt>
<dd class="description">
<div class="section">Gets the CUDA devices corresponding to a Direct3D 9 device. </div>
<div class="section">
<h6 class="parameter_header">
Parameters
</h6>
<dl class="table-display-params">
<dt><tt class="code"><span class="keyword keyword apiItemName">pCudaDeviceCount</span></tt></dt>
<dd>- Returned number of CUDA devices corresponding to <tt class="ph tt code">pD3D9Device</tt></dd>
<dt><tt class="code"><span class="keyword keyword apiItemName">pCudaDevices</span></tt></dt>
<dd>- Returned CUDA devices corresponding to <tt class="ph tt code">pD3D9Device</tt></dd>
<dt><tt class="code"><span class="keyword keyword apiItemName">cudaDeviceCount</span></tt></dt>
<dd>- The size of the output device array <tt class="ph tt code">pCudaDevices</tt></dd>
<dt><tt class="code"><span class="keyword keyword apiItemName">pD3D9Device</span></tt></dt>
<dd>- Direct3D 9 device to query for CUDA devices </dd>
<dt><tt class="code"><span class="keyword keyword apiItemName">deviceList</span></tt></dt>
<dd>- The set of devices to return. This set may be <a class="xref" href="group__CUDART__D3D9.html#group__CUDART__D3D9_1gg93e3d8aabc986f1799a2754135e31379d60701634fd33febe258c9192ce49a89" shape="rect">cudaD3D9DeviceListAll</a> for all devices, <a class="xref" href="group__CUDART__D3D9.html#group__CUDART__D3D9_1gg93e3d8aabc986f1799a2754135e31379dc0aed5e3d2cfc9f495054d1291747e8" shape="rect">cudaD3D9DeviceListCurrentFrame</a> for the devices used to render the current frame (in SLI), or <a class="xref" href="group__CUDART__D3D9.html#group__CUDART__D3D9_1gg93e3d8aabc986f1799a2754135e31379e79744aff1440d3cfecb0cf225bd646f" shape="rect">cudaD3D9DeviceListNextFrame</a> for the devices used to render the next frame (in SLI).
</dd>
</dl>
</div>
<div class="section">
<h6 class="return_header">Returns</h6>
<p class="return"><a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e0038e355f04607d824883b4a50662830d591" shape="rect">cudaSuccess</a>, <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e0038e942e4cbbd2bef6e92e293253f055613" shape="rect">cudaErrorNoDevice</a>, <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e00382e491daacef266c7b3e3c1e140a6133c" shape="rect">cudaErrorUnknown</a></p>
</div>
<div class="section">
<h6 class="description_header">Description</h6>
<p>Returns in <tt class="ph tt code">*pCudaDeviceCount</tt> the number of CUDA-compatible devices corresponding to the Direct3D 9 device <tt class="ph tt code">pD3D9Device</tt>. Also returns in <tt class="ph tt code">*pCudaDevices</tt> at most <tt class="ph tt code">cudaDeviceCount</tt> of the the CUDA-compatible devices corresponding to the Direct3D 9 device <tt class="ph tt code">pD3D9Device</tt>.
</p>
<p class="p">If any of the GPUs being used to render <tt class="ph tt code">pDevice</tt> are not CUDA capable then the call will return <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e0038e942e4cbbd2bef6e92e293253f055613" shape="rect">cudaErrorNoDevice</a>.
</p>
<p class="p"></p>
<p class="p"></p>
<p class="p">
<div class="note note"><span class="notetitle">Note:</span><p class="p">Note that this function may also return error codes from previous, asynchronous launches.</p>
</div>
</p>
<p class="p"></p>
<p class="p apiDesc_subtitle"><strong class="ph b">See also:</strong></p>
<p class="p see_subsection"><a class="xref" href="group__CUDART__INTEROP.html#group__CUDART__INTEROP_1g1d45ac44d1affe17fb356e0b7a0b0560" title="Unregisters a graphics resource for access by CUDA." shape="rect">cudaGraphicsUnregisterResource</a>, <a class="xref" href="group__CUDART__INTEROP.html#group__CUDART__INTEROP_1gb7064fb72e54d89d0666e192b45d35cc" title="Map graphics resources for access by CUDA." shape="rect">cudaGraphicsMapResources</a>, <a class="xref" href="group__CUDART__INTEROP.html#group__CUDART__INTEROP_1gfc796cc80e7a054b13d90afde659546e" title="Get an array through which to access a subresource of a mapped graphics resource." shape="rect">cudaGraphicsSubResourceGetMappedArray</a>, <a class="xref" href="group__CUDART__INTEROP.html#group__CUDART__INTEROP_1ge7f893864a3d38a630e71a99f5a4e17f" title="Get an device pointer through which to access a mapped graphics resource." shape="rect">cudaGraphicsResourceGetMappedPointer</a></p>
<p class="p"></p>
</div>
</dd>
<dt class="description"><a name="group__CUDART__D3D9_1g18e9449a409a1d3d606a52cbd73ad235" id="group__CUDART__D3D9_1g18e9449a409a1d3d606a52cbd73ad235" shape="rect">
<!-- --></a><span><a href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gf599e5b8b829ce7db0f5216928f6ecb6" title="" shape="rect">cudaError_t</a> cudaD3D9GetDirect3DDevice ( IDirect3DDevice9**<span> </span><span class="keyword keyword apiItemName">ppD3D9Device</span> ) </span></dt>
<dd class="description">
<div class="section">Gets the Direct3D device against which the current CUDA context was created. </div>
<div class="section">
<h6 class="parameter_header">
Parameters
</h6>
<dl class="table-display-params">
<dt><tt class="code"><span class="keyword keyword apiItemName">ppD3D9Device</span></tt></dt>
<dd>- Returns the Direct3D device for this thread</dd>
</dl>
</div>
<div class="section">
<h6 class="return_header">Returns</h6>
<p class="return"><a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e0038e355f04607d824883b4a50662830d591" shape="rect">cudaSuccess</a>, <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e00382e491daacef266c7b3e3c1e140a6133c" shape="rect">cudaErrorUnknown</a></p>
</div>
<div class="section">
<h6 class="description_header">Description</h6>
<p>Returns in <tt class="ph tt code">*ppD3D9Device</tt> the Direct3D device against which this CUDA context was created in <a class="xref" href="group__CUDART__D3D9.html#group__CUDART__D3D9_1g3b7a9c5a5f249fa1f8fb5743304474b5" title="Sets the Direct3D 9 device to use for interoperability with a CUDA device." shape="rect">cudaD3D9SetDirect3DDevice()</a>.
</p>
<p class="p"></p>
<p class="p"></p>
<p class="p">
<div class="note note"><span class="notetitle">Note:</span><p class="p">Note that this function may also return error codes from previous, asynchronous launches.</p>
</div>
</p>
<p class="p"></p>
<p class="p apiDesc_subtitle"><strong class="ph b">See also:</strong></p>
<p class="p see_subsection"><a class="xref" href="group__CUDART__D3D9.html#group__CUDART__D3D9_1g3b7a9c5a5f249fa1f8fb5743304474b5" title="Sets the Direct3D 9 device to use for interoperability with a CUDA device." shape="rect">cudaD3D9SetDirect3DDevice</a></p>
<p class="p"></p>
</div>
</dd>
<dt class="description"><a name="group__CUDART__D3D9_1g3b7a9c5a5f249fa1f8fb5743304474b5" id="group__CUDART__D3D9_1g3b7a9c5a5f249fa1f8fb5743304474b5" shape="rect">
<!-- --></a><span><a href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gf599e5b8b829ce7db0f5216928f6ecb6" title="" shape="rect">cudaError_t</a> cudaD3D9SetDirect3DDevice ( IDirect3DDevice9*<span> </span><span class="keyword keyword apiItemName">pD3D9Device</span>, int <span> </span><span class="keyword keyword apiItemName">device</span> = <span class="ph ph apiData">-1</span> ) </span></dt>
<dd class="description">
<div class="section">Sets the Direct3D 9 device to use for interoperability with a CUDA device. </div>
<div class="section">
<h6 class="parameter_header">
Parameters
</h6>
<dl class="table-display-params">
<dt><tt class="code"><span class="keyword keyword apiItemName">pD3D9Device</span></tt></dt>
<dd>- Direct3D device to use for this thread </dd>
<dt><tt class="code"><span class="keyword keyword apiItemName">device</span></tt></dt>
<dd>- The CUDA device to use. This device must be among the devices returned when querying <a class="xref" href="group__CUDART__D3D9.html#group__CUDART__D3D9_1gg93e3d8aabc986f1799a2754135e31379d60701634fd33febe258c9192ce49a89" shape="rect">cudaD3D9DeviceListAll</a> from <a class="xref" href="group__CUDART__D3D9.html#group__CUDART__D3D9_1g3e0de372020bba09fe032a956736dd27" title="Gets the CUDA devices corresponding to a Direct3D 9 device." shape="rect">cudaD3D9GetDevices</a>, may be set to -1 to automatically select an appropriate CUDA device.
</dd>
</dl>
</div>
<div class="section">
<h6 class="return_header">Returns</h6>
<p class="return"><a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e0038e355f04607d824883b4a50662830d591" shape="rect">cudaSuccess</a>, <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e0038ce7993a88ecf2c57b8102d55d997a18c" shape="rect">cudaErrorInitializationError</a>, <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e00383e8aef5398ee38e28ed41e357b48917c" shape="rect">cudaErrorInvalidValue</a>, <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e0038a906ddf08d574274bf7334adb1497550" shape="rect">cudaErrorSetOnActiveProcess</a></p>
</div>
<div class="section">
<h6 class="description_header">Description</h6>
<p>Records <tt class="ph tt code">pD3D9Device</tt> as the Direct3D 9 device to use for Direct3D 9 interoperability with the CUDA device <tt class="ph tt code">device</tt> and sets <tt class="ph tt code">device</tt> as the current device for the calling host thread.
</p>
<p class="p">If <tt class="ph tt code">device</tt> has already been initialized then this call will fail with the error <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e0038a906ddf08d574274bf7334adb1497550" shape="rect">cudaErrorSetOnActiveProcess</a>. In this case it is necessary to reset <tt class="ph tt code">device</tt> using <a class="xref" href="group__CUDART__DEVICE.html#group__CUDART__DEVICE_1gdcc2c6f914eb9461565b12648faa5e28" title="Destroy all allocations and reset all state on the current device in the current process." shape="rect">cudaDeviceReset()</a> before Direct3D 9 interoperability on <tt class="ph tt code">device</tt> may be enabled.
</p>
<p class="p">Successfully initializing CUDA interoperability with <tt class="ph tt code">pD3D9Device</tt> will increase the internal reference count on <tt class="ph tt code">pD3D9Device</tt>. This reference count will be decremented when <tt class="ph tt code">device</tt> is reset using <a class="xref" href="group__CUDART__DEVICE.html#group__CUDART__DEVICE_1gdcc2c6f914eb9461565b12648faa5e28" title="Destroy all allocations and reset all state on the current device in the current process." shape="rect">cudaDeviceReset()</a>.
</p>
<p class="p">Note that this function is never required for correct functionality. Use of this function will result in accelerated interoperability
only when the operating system is Windows Vista or Windows 7, and the device <tt class="ph tt code">pD3DDdevice</tt> is not an IDirect3DDevice9Ex. In all other cirumstances, this function is not necessary.
</p>
<p class="p"></p>
<p class="p"></p>
<p class="p">
<div class="note note"><span class="notetitle">Note:</span><p class="p">Note that this function may also return error codes from previous, asynchronous launches.</p>
</div>
</p>
<p class="p"></p>
<p class="p apiDesc_subtitle"><strong class="ph b">See also:</strong></p>
<p class="p see_subsection"><a class="xref" href="group__CUDART__D3D9.html#group__CUDART__D3D9_1gce3447041e9b21679501dfd5d54d0475" title="Gets the device number for an adapter." shape="rect">cudaD3D9GetDevice</a>, <a class="xref" href="group__CUDART__D3D9.html#group__CUDART__D3D9_1gbe1082b566be4ab414bf69047449ad93" title="Register a Direct3D 9 resource for access by CUDA." shape="rect">cudaGraphicsD3D9RegisterResource</a>, <a class="xref" href="group__CUDART__DEVICE.html#group__CUDART__DEVICE_1gdcc2c6f914eb9461565b12648faa5e28" title="Destroy all allocations and reset all state on the current device in the current process." shape="rect">cudaDeviceReset</a></p>
<p class="p"></p>
</div>
</dd>
<dt class="description"><a name="group__CUDART__D3D9_1gbe1082b566be4ab414bf69047449ad93" id="group__CUDART__D3D9_1gbe1082b566be4ab414bf69047449ad93" shape="rect">
<!-- --></a><span><a href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gf599e5b8b829ce7db0f5216928f6ecb6" title="" shape="rect">cudaError_t</a> cudaGraphicsD3D9RegisterResource ( cudaGraphicsResource**<span> </span><span class="keyword keyword apiItemName">resource</span>, IDirect3DResource9*<span> </span><span class="keyword keyword apiItemName">pD3DResource</span>, unsigned int <span> </span><span class="keyword keyword apiItemName">flags</span> ) </span></dt>
<dd class="description">
<div class="section">Register a Direct3D 9 resource for access by CUDA. </div>
<div class="section">
<h6 class="parameter_header">
Parameters
</h6>
<dl class="table-display-params">
<dt><tt class="code"><span class="keyword keyword apiItemName">resource</span></tt></dt>
<dd>- Pointer to returned resource handle </dd>
<dt><tt class="code"><span class="keyword keyword apiItemName">pD3DResource</span></tt></dt>
<dd>- Direct3D resource to register </dd>
<dt><tt class="code"><span class="keyword keyword apiItemName">flags</span></tt></dt>
<dd>- Parameters for resource registration</dd>
</dl>
</div>
<div class="section">
<h6 class="return_header">Returns</h6>
<p class="return"><a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e0038e355f04607d824883b4a50662830d591" shape="rect">cudaSuccess</a>, <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e0038938c6e8b96ecde62e3ab5137156f739a" shape="rect">cudaErrorInvalidDevice</a>, <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e00383e8aef5398ee38e28ed41e357b48917c" shape="rect">cudaErrorInvalidValue</a>, <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e0038c4673247aee4d1ab8d07871f376e0273" shape="rect">cudaErrorInvalidResourceHandle</a>, <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e00382e491daacef266c7b3e3c1e140a6133c" shape="rect">cudaErrorUnknown</a></p>
</div>
<div class="section">
<h6 class="description_header">Description</h6>
<p>Registers the Direct3D 9 resource <tt class="ph tt code">pD3DResource</tt> for access by CUDA.
</p>
<p class="p">If this call is successful then the application will be able to map and unmap this resource until it is unregistered through
<a class="xref" href="group__CUDART__INTEROP.html#group__CUDART__INTEROP_1g1d45ac44d1affe17fb356e0b7a0b0560" title="Unregisters a graphics resource for access by CUDA." shape="rect">cudaGraphicsUnregisterResource()</a>. Also on success, this call will increase the internal reference count on <tt class="ph tt code">pD3DResource</tt>. This reference count will be decremented when this resource is unregistered through <a class="xref" href="group__CUDART__INTEROP.html#group__CUDART__INTEROP_1g1d45ac44d1affe17fb356e0b7a0b0560" title="Unregisters a graphics resource for access by CUDA." shape="rect">cudaGraphicsUnregisterResource()</a>.
</p>
<p class="p">This call potentially has a high-overhead and should not be called every frame in interactive applications.</p>
<p class="p">The type of <tt class="ph tt code">pD3DResource</tt> must be one of the following.
</p>
<p class="p">
<ul class="ul">
<li class="li">
<p class="p">IDirect3DVertexBuffer9: may be accessed through a device pointer</p>
</li>
<li class="li">
<p class="p">IDirect3DIndexBuffer9: may be accessed through a device pointer</p>
</li>
<li class="li">
<p class="p">IDirect3DSurface9: may be accessed through an array. Only stand-alone objects of type IDirect3DSurface9 may be explicitly
shared. In particular, individual mipmap levels and faces of cube maps may not be registered directly. To access individual
surfaces associated with a texture, one must register the base texture object.
</p>
</li>
<li class="li">
<p class="p">IDirect3DBaseTexture9: individual surfaces on this texture may be accessed through an array.</p>
</li>
</ul>
</p>
<p class="p">The <tt class="ph tt code">flags</tt> argument may be used to specify additional parameters at register time. The valid values for this parameter are
</p>
<p class="p">
<ul class="ul">
<li class="li">
<p class="p"><a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1ggd17cc29b28205bbe32ac575eba16c277540ff4c59c6782d5bd5a5c7d1534df19" shape="rect">cudaGraphicsRegisterFlagsNone</a>: Specifies no hints about how this resource will be used.
</p>
</li>
<li class="li">
<p class="p"><a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1ggd17cc29b28205bbe32ac575eba16c2775e6fe684d912bce0098e86e4463a5e85" shape="rect">cudaGraphicsRegisterFlagsSurfaceLoadStore</a>: Specifies that CUDA will bind this resource to a surface reference.
</p>
</li>
<li class="li">
<p class="p"><a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1ggd17cc29b28205bbe32ac575eba16c277bdb2f88d1ead2a284634cf3fc63be116" shape="rect">cudaGraphicsRegisterFlagsTextureGather</a>: Specifies that CUDA will perform texture gather operations on this resource.
</p>
</li>
</ul>
</p>
<p class="p">Not all Direct3D resources of the above types may be used for interoperability with CUDA. The following are some limitations.</p>
<p class="p">
<ul class="ul">
<li class="li">
<p class="p">The primary rendertarget may not be registered with CUDA.</p>
</li>
<li class="li">
<p class="p">Resources allocated as shared may not be registered with CUDA.</p>
</li>
<li class="li">
<p class="p">Textures which are not of a format which is 1, 2, or 4 channels of 8, 16, or 32-bit integer or floating-point data cannot
be shared.
</p>
</li>
<li class="li">
<p class="p">Surfaces of depth or stencil formats cannot be shared.</p>
</li>
</ul>
</p>
<p class="p">A complete list of supported formats is as follows:
<ul class="ul">
<li class="li">
<p class="p">D3DFMT_L8</p>
</li>
<li class="li">
<p class="p">D3DFMT_L16</p>
</li>
<li class="li">
<p class="p">D3DFMT_A8R8G8B8</p>
</li>
<li class="li">
<p class="p">D3DFMT_X8R8G8B8</p>
</li>
<li class="li">
<p class="p">D3DFMT_G16R16</p>
</li>
<li class="li">
<p class="p">D3DFMT_A8B8G8R8</p>
</li>
<li class="li">
<p class="p">D3DFMT_A8</p>
</li>
<li class="li">
<p class="p">D3DFMT_A8L8</p>
</li>
<li class="li">
<p class="p">D3DFMT_Q8W8V8U8</p>
</li>
<li class="li">
<p class="p">D3DFMT_V16U16</p>
</li>
<li class="li">
<p class="p">D3DFMT_A16B16G16R16F</p>
</li>
<li class="li">
<p class="p">D3DFMT_A16B16G16R16</p>
</li>
<li class="li">
<p class="p">D3DFMT_R32F</p>
</li>
<li class="li">
<p class="p">D3DFMT_G16R16F</p>
</li>
<li class="li">
<p class="p">D3DFMT_A32B32G32R32F</p>
</li>
<li class="li">
<p class="p">D3DFMT_G32R32F</p>
</li>
<li class="li">
<p class="p">D3DFMT_R16F</p>
</li>
</ul>
</p>
<p class="p">If <tt class="ph tt code">pD3DResource</tt> is of incorrect type or is already registered, then <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e0038c4673247aee4d1ab8d07871f376e0273" shape="rect">cudaErrorInvalidResourceHandle</a> is returned. If <tt class="ph tt code">pD3DResource</tt> cannot be registered, then <a class="xref" href="group__CUDART__TYPES.html#group__CUDART__TYPES_1gg3f51e3575c2178246db0a94a430e00382e491daacef266c7b3e3c1e140a6133c" shape="rect">cudaErrorUnknown</a> is returned.
</p>
<p class="p"></p>
<p class="p"></p>
<p class="p">
<div class="note note"><span class="notetitle">Note:</span><p class="p">Note that this function may also return error codes from previous, asynchronous launches.</p>
</div>
</p>
<p class="p"></p>
<p class="p apiDesc_subtitle"><strong class="ph b">See also:</strong></p>
<p class="p see_subsection"><a class="xref" href="group__CUDART__D3D9.html#group__CUDART__D3D9_1g3b7a9c5a5f249fa1f8fb5743304474b5" title="Sets the Direct3D 9 device to use for interoperability with a CUDA device." shape="rect">cudaD3D9SetDirect3DDevice</a>, <a class="xref" href="group__CUDART__INTEROP.html#group__CUDART__INTEROP_1g1d45ac44d1affe17fb356e0b7a0b0560" title="Unregisters a graphics resource for access by CUDA." shape="rect">cudaGraphicsUnregisterResource</a>, <a class="xref" href="group__CUDART__INTEROP.html#group__CUDART__INTEROP_1gb7064fb72e54d89d0666e192b45d35cc" title="Map graphics resources for access by CUDA." shape="rect">cudaGraphicsMapResources</a>, <a class="xref" href="group__CUDART__INTEROP.html#group__CUDART__INTEROP_1gfc796cc80e7a054b13d90afde659546e" title="Get an array through which to access a subresource of a mapped graphics resource." shape="rect">cudaGraphicsSubResourceGetMappedArray</a>, <a class="xref" href="group__CUDART__INTEROP.html#group__CUDART__INTEROP_1ge7f893864a3d38a630e71a99f5a4e17f" title="Get an device pointer through which to access a mapped graphics resource." shape="rect">cudaGraphicsResourceGetMappedPointer</a></p>
<p class="p"></p>
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