+void grits_object_hide(GritsObject *object, gboolean hidden);
+
+/* Interal, used by grits_opengl */
+void grits_object_pick(GritsObject *object, GritsOpenGL *opengl);
+gboolean grits_object_set_pointer(GritsObject *object, GdkEvent *event, gboolean selected);
+gboolean grits_object_event(GritsObject *object, GdkEvent *event);
+