<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <title>NVIDIA CUDA Library: cudaWGLGetDevice</title> <link href="customdoxygen.css" rel="stylesheet" type="text/css"> <link href="tabs.css" rel="stylesheet" type="text/css"> </head><body> <!-- Generated by Doxygen 1.5.8 --> <div class="navigation" id="top"> <div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul> </div> </div> <div class="contents"> <div class="navpath"><a class="el" href="group__CUDART__OPENGL.html">OpenGL Interoperability</a> </div> <table cellspacing="0" cellpadding="0" border="0"> <tr> <td valign="top"> <div class="navtab"> <table> <tr><td class="navtab"><a class="qindex" href="group__CUDART__OPENGL_gb16c58ea3958e29c9b15cad8e5b03969.html#gb16c58ea3958e29c9b15cad8e5b03969">cudaGLDeviceList</a></td></tr> <tr><td class="navtab"><a class="qindex" href="group__CUDART__OPENGL_gcf14c650f5659b66aa7d9f3099ae5ade.html#gcf14c650f5659b66aa7d9f3099ae5ade">cudaGLGetDevices</a></td></tr> <tr><td class="navtab"><a class="qindex" href="group__CUDART__OPENGL_gc6502eba2a85a3f222dc960de8df8115.html#gc6502eba2a85a3f222dc960de8df8115">cudaGLSetGLDevice</a></td></tr> <tr><td class="navtab"><a class="qindex" href="group__CUDART__OPENGL_g43f69a041bdfa4f8b36aff99bf0171db.html#g43f69a041bdfa4f8b36aff99bf0171db">cudaGraphicsGLRegisterBuffer</a></td></tr> <tr><td class="navtab"><a class="qindex" href="group__CUDART__OPENGL_gd7be3ca8a7a739d57f0b558562c5706e.html#gd7be3ca8a7a739d57f0b558562c5706e">cudaGraphicsGLRegisterImage</a></td></tr> <tr><td class="navtab"><a class="qindexHL" href="group__CUDART__OPENGL_ga48bc83e2aeff82904589243a11b5e09.html#ga48bc83e2aeff82904589243a11b5e09">cudaWGLGetDevice</a></td></tr> </table> </div> </td> <td valign="top"> <a class="anchor" name="ga48bc83e2aeff82904589243a11b5e09"></a><!-- doxytag: member="cuda_gl_interop.h::cudaWGLGetDevice" ref="ga48bc83e2aeff82904589243a11b5e09" args="(int *device, HGPUNV hGpu)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="group__CUDART__TYPES_gf599e5b8b829ce7db0f5216928f6ecb6.html#gf599e5b8b829ce7db0f5216928f6ecb6">cudaError_t</a> cudaWGLGetDevice </td> <td>(</td> <td class="paramtype">int * </td> <td class="paramname"> <em>device</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">HGPUNV </td> <td class="paramname"> <em>hGpu</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p> Returns the CUDA device associated with a hGpu, if applicable.<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>device</em> </td><td>- Returns the device associated with hGpu, or -1 if hGpu is not a compute device. </td></tr> <tr><td valign="top"></td><td valign="top"><em>hGpu</em> </td><td>- Handle to a GPU, as queried via WGL_NV_gpu_affinity</td></tr> </table> </dl> <dl class="return" compact><dt><b>Returns:</b></dt><dd><a class="el" href="group__CUDART__TYPES_g3f51e3575c2178246db0a94a430e0038.html#gg3f51e3575c2178246db0a94a430e0038e355f04607d824883b4a50662830d591">cudaSuccess</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>WGL_NV_gpu_affinity, <a class="el" href="group__CUDART__OPENGL_gc6502eba2a85a3f222dc960de8df8115.html#gc6502eba2a85a3f222dc960de8df8115" title="Sets a CUDA device to use OpenGL interoperability.">cudaGLSetGLDevice</a> </dd></dl> </div> </div><p> </td> </tr> </table> </div> <hr size="1"><address style="text-align: right;"><small> Generated by Doxygen for NVIDIA CUDA Library <a href="http://www.nvidia.com/cuda"><img src="nvidia_logo.jpg" alt="NVIDIA" align="middle" border="0" height="80"></a></small></address> </body> </html>