Properly compute the client area valid rects and pass them to the
server in set_window_pos to avoid invalidating areas that remain
valid.
diff --git a/server/protocol.def b/server/protocol.def
index 6873faa..3307e93 100644
--- a/server/protocol.def
+++ b/server/protocol.def
@@ -1825,9 +1825,9 @@
user_handle_t top_win; /* top window to clip against */
user_handle_t previous; /* previous window in Z order */
unsigned int flags; /* SWP_* flags */
- unsigned int redraw_flags; /* WVR_* flags */
rectangle_t window; /* window rectangle */
rectangle_t client; /* client rectangle */
+ VARARG(valid,rectangles); /* valid rectangles from WM_NCCALCSIZE */
@REPLY
unsigned int new_style; /* new window style */
@END
