     c-string data,
     uint width,
     uint height ) ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! Appendix C - Extensions
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+X-FUNCTION: Bool XQueryExtension (
+        Display* display,
+        c-string name,
+        int* major_opcode_return,
+        int* first_event_return,
+        int* first_error_return ) ;
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 ! Appendix D - Compatibility Functions

{ window Window }
{ pad int[8] } ;

UNION-STRUCT: XEvent
{ int int }
{ XAnyEvent XAnyEvent }

{ XMappingEvent XMappingEvent }
{ XErrorEvent XErrorEvent }
{ XKeymapEvent XKeymapEvent }
{ XGenericEvent XGenericEvent }
{ XGenericEventCookie XGenericEventCookie }
{ padding long[24] } ;

! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
