osx man page for glunurbscallbackdata

GLUNURBSCALLBACKDATA(3G)												  GLUNURBSCALLBACKDATA(3G)

NAME
       gluNurbsCallbackData - set a user data pointer

C SPECIFICATION
       void gluNurbsCallbackData( GLUnurbs* nurb,
				  GLvoid* userData )

PARAMETERS
       nurb	 Specifies the NURBS object (created with gluNewNurbsRenderer).

       userData  Specifies a pointer to the user's data.

DESCRIPTION
       gluNurbsCallbackData 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).

NOTES
       gluNurbsCallbackData is available only if the GLU version is 1.3 or greater.

SEE ALSO
       gluNewNurbsRenderer, gluNurbsCallback

															  GLUNURBSCALLBACKDATA(3G)