user32: Reimplement IsHungAppWindow.
diff --git a/server/request.h b/server/request.h
index cc1d3d1..6c5f146 100644
--- a/server/request.h
+++ b/server/request.h
@@ -239,6 +239,7 @@
 DECL_HANDLER(get_message_reply);
 DECL_HANDLER(set_win_timer);
 DECL_HANDLER(kill_win_timer);
+DECL_HANDLER(is_window_hung);
 DECL_HANDLER(get_serial_info);
 DECL_HANDLER(set_serial_info);
 DECL_HANDLER(register_async);
@@ -476,6 +477,7 @@
     (req_handler)req_get_message_reply,
     (req_handler)req_set_win_timer,
     (req_handler)req_kill_win_timer,
+    (req_handler)req_is_window_hung,
     (req_handler)req_get_serial_info,
     (req_handler)req_set_serial_info,
     (req_handler)req_register_async,