private static void OverrideDie(GLib.GType gtype)
 {
     if (DieVMCallback == null)
     {
         DieVMCallback = new DieVMDelegate(die_cb);
     }
     gnomesharp_client_override_die(gtype.Val, DieVMCallback);
 }
 static extern void gnomesharp_client_override_die(IntPtr gtype, DieVMDelegate cb);