1991-2006 Silicon Graphics, Inc. glXQueryContextInfoEXT 3G glXQueryContextInfoEXT query context information int glXQueryContextInfoEXT Display * dpy GLXContext ctx int attribute int * value dpy Specifies the connection to the X server. ctx Specifies a GLX rendering context. attribute Specifies that a context parameter should be retrieved. Must be one of GLX_SHARED_CONTEXT_EXT, GLX_VISUAL_ID_EXT, or GLX_SCREEN_EXT. value Contains the return value for attribute. glXQueryContextInfoEXT sets value to the value of attribute with respect to ctx. glXQueryContextInfoEXT returns an error code if it fails for any reason. Otherwise, Success is returned. attribute may be one of the following: GLX_SHARED_CONTEXT_EXT Returns the XID of the share list context associated with ctx at its creation. GLX_VISUAL_ID_EXT Returns the XID of the GLX Visual associated with ctx. GLX_SCREEN_EXT Returns the screen number associated with ctx. This call may cause a round-trip to the server. glXQueryContextInfoEXT is part of the EXT_import_context extension, not part of the core GLX command set. If _glxextstring(EXT_import_context) is included in the string returned by glXQueryExtensionsString, when called with argument GLX_EXTENSIONS, extension EXT_import_context is supported. GLXBadContext is generated if ctx does not refer to a valid context. GLX_BAD_ATTRIBUTE is returned if attribute is not a valid GLX context attribute. fred GLX_BAD_CONTEXT is returned if attribute is not a valid context. glXCreateContext, glXQueryVersion, glXQueryExtensionsString Copyright 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.