1991-2006 Silicon Graphics, Inc. glXQueryExtension 3G glXQueryExtension indicate whether the GLX extension is supported Bool glXQueryExtension Display * dpy int * errorBase int * eventBase dpy Specifies the connection to the X server. errorBase Returns the base error code of the GLX server extension. eventBase Returns the base event code of the GLX server extension. glXQueryExtension returns True if the X server of connection dpy supports the GLX extension, False otherwise. If True is returned, then errorBase and eventBase return the error base and event base of the GLX extension. These values should be added to the constant error and event values to determine the actual event or error values. Otherwise, errorBase and eventBase are unchanged. errorBase and eventBase do not return values if they are specified as NULL. glXQueryVersion 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/.