user32: Invalid DCEs when the window surface changes.

ddf41276 · Alexandre Julliard · 61f9789c · ddf41276
Commit ddf41276 authored Oct 01, 2012 by Alexandre Julliard
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Showing with 7 additions and 3 deletions

winpos.c dlls/user32/winpos.c +7 -3

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--- a/dlls/user32/winpos.c
+++ b/dlls/user32/winpos.c
@@ -2017,9 +2017,13 @@ BOOL set_window_pos( HWND hwnd, HWND insert_after, UINT swp_flags,
    }
    SERVER_END_REQ;

-    if (ret && (((swp_flags & SWP_AGG_NOPOSCHANGE) != SWP_AGG_NOPOSCHANGE) ||
-                (swp_flags & (SWP_HIDEWINDOW | SWP_SHOWWINDOW | SWP_STATECHANGED | SWP_FRAMECHANGED))))
-        invalidate_dce( win, &old_window_rect );
+    if (ret)
+    {
+        if (old_surface != new_surface ||
+            ((swp_flags & SWP_AGG_NOPOSCHANGE) != SWP_AGG_NOPOSCHANGE) ||
+            (swp_flags & (SWP_HIDEWINDOW | SWP_SHOWWINDOW | SWP_STATECHANGED | SWP_FRAMECHANGED)))
+            invalidate_dce( win, &old_window_rect );
+    }

    WIN_ReleasePtr( win );