glXQueryExtension  - indicate whether the GLX extension is
       supported



C SPECIFICATION

       Bool glXQueryExtension( Display *dpy,
                               int *errorBase,
                               int *eventBase )



PARAMETERS

       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.


DESCRIPTION

       glXQueryExtension returns True if the X server of  connec-
       tion  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.


SEE ALSO

       glXQueryVersion




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