GLUNURBSCALBACKDATAEXT(3G)                        GLUNURBSCALBACKDATAEXT(3G)



NAME
       gluNurbsCallbackDataEXT - set a user data pointer


C SPECIFICATION
       void 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



                                                   GLUNURBSCALBACKDATAEXT(3G)