static IntPtr RefAccessibleAtPoint_cb(IntPtr inst, int x, int y, int coord_type)
 {
     try {
         IComponentImplementor __obj = GLib.Object.GetObject(inst, false) as IComponentImplementor;
         Atk.Object            __result;
         __result = __obj.RefAccessibleAtPoint(x, y, (Atk.CoordType)coord_type);
         return(__result == null ? IntPtr.Zero : __result.OwnedHandle);
     } catch (Exception e) {
         GLib.ExceptionManager.RaiseUnhandledException(e, true);
         // NOTREACHED: above call does not return.
         throw e;
     }
 }