C SPECIFICATION

       void GLAPIENTRY gluNurbsCallbackDataEXT( GLUnurbs* nurb,
                                                GLvoid* userData )

PARAMETERS

       nurb      Specifies      the     NURBS     object     (created     with
                 gluNewNurbsRenderer).

       userData  Specifies a pointer to the user's data.

DESCRIPTION

       gluNurbsCallbackDataEXT is used to pass a pointer to the  application's
       data to NURBS tessellator. A copy of this pointer will be passed by the
       tessellator in the NURBS callback functions (set by  gluNurbsCallback).

SEE ALSO

       gluNurbsCallback



                                                   GLUNURBSCALLBACKDATAEXT(3G)