int mav_boxGetUserdef(MAV_object *o, void ***ud);
int mav_compositeGetUserdef(MAV_object *o, void ***ud);
int mav_coneGetUserdef(MAV_object *o, void ***ud);
int mav_ctorusGetUserdef(MAV_object *o, void ***ud);
int mav_cylinderGetUserdef(MAV_object *o, void ***ud);
int mav_ellipseGetUserdef(MAV_object *o, void ***ud);
int mav_facetGetUserdef(MAV_object *o, void ***ud);
int mav_hellipseGetUserdef(MAV_object *o, void ***ud);
int mav_hsphereGetUserdef(MAV_object *o, void ***ud);
int mav_polylineGetUserdef(MAV_object *o, void ***ud);
int mav_polygonGetUserdef(MAV_object *o, void ***ud);
int mav_polygonGrpGetUserdef(MAV_object *o, void ***ud);
int mav_pyramidGetUserdef(MAV_object *o, void ***ud);
int mav_rectangleGetUserdef(MAV_object *o, void ***ud);
int mav_rtorusGetUserdef(MAV_object *o, void ***ud);
int mav_SMSObjGetUserdef(MAV_object *o, void ***ud);
int mav_sphereGetUserdef(MAV_object *o, void ***ud);
int mav_teapotGetUserdef(MAV_object *o, void ***ud);
int mav_textGetUserdef(MAV_object *o, void ***ud);
int mav_avatarGetUserdef(MAV_object *o, void ***ud);
int mav_TDMCursorGetUserdef(MAV_object *o, void ***ud);