C SPECIFICATION

       Bool glXQueryExtension( Display *dpy,
                               int *errorb,
                               int *event )

PARAMETERS

       dpy     Specifies the connection to the X server.

       errorb  Returns the base error code of the GLX server extension.

       event   Returns the base event code of the GLX server extension.

DESCRIPTION

       glXQueryExtension  returns  True if the X server of connection dpy sup-
       ports the GLX extension, False otherwise.  If True  is  returned,  then
       errorb and event return the error base and event base of the GLX exten-
       sion.  These values should be added to the  constant  error  and  event
       values  to  determine  the  actual  event  or error values.  Otherwise,
       errorb and event are unchanged.

       errorb and event do not return values if they are specified as NULL.

SEE ALSO

       glXQueryVersion




                                                         GLXQUERYEXTENSION(3G)