server: Add a separate request to set the window visible rect.
diff --git a/server/protocol.def b/server/protocol.def
index 1dff790..ff8bf52 100644
--- a/server/protocol.def
+++ b/server/protocol.def
@@ -2185,6 +2185,15 @@
 @REPLY
     unsigned int   new_style;     /* new window style */
     unsigned int   new_ex_style;  /* new window extended style */
+    rectangle_t    visible;       /* new visible rectangle */
+@END
+
+
+/* Set the visible rectangle of a window */
+@REQ(set_window_visible_rect)
+    unsigned int   flags;         /* SWP_* flags */
+    user_handle_t  handle;        /* handle to the window */
+    rectangle_t    visible;       /* visible rectangle */
 @END