HP Workstation zx2000 OpenGL 1.1 Reference for HP-UX 11.x - Page 369

Q glXQueryExtension glXQueryExtension glXQueryExtension: indicate whether the GLX extension is supported. C Specification Bool glXQueryExtension( Display *dpy, int *errorBase, int *eventBase) Parameters dpy errorBase eventBase Specifies the connection to the X server. Returns the base error code of the GLX server extension. Returns the base event code of the GLX server extension. Description 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. Otherwise, errorBase and eventBase are unchanged. errorBase and eventBase do not return values if they are specified as NULL. Notes eventBase is included for future extensions. GLX does not currently define any events. See Also glXQueryVersion Chapter 15 369