commit d815e582cf327dca33cf84c3cc27701c2eef98ba
author Alexandre Julliard <julliard@winehq.org> Fri May 28 15:01:25 2010 +0200
committer Alexandre Julliard <julliard@winehq.org> Fri May 28 16:22:26 2010 +0200
tree d77b3e28db42ecb8bf8e0275407f130dc503d148
parent 2db72e98597a4025873ded6d1e844ec5b37ad0f8

user32: Only skip redraws on MDI child unmaximize if the new child is maximized.

dlls/user32/win.c

diff --git a/dlls/user32/win.c b/dlls/user32/win.c
index 74ea0b3..6800abd 100644
--- a/dlls/user32/win.c
+++ b/dlls/user32/win.c
@@ -1148,9 +1148,14 @@
             if((cs->style & WS_VISIBLE) && IsZoomed(top_child))
             {
                 TRACE("Restoring current maximized child %p\n", top_child);
-                SendMessageW( top_child, WM_SETREDRAW, FALSE, 0 );
-                ShowWindow( top_child, SW_SHOWNORMAL );
-                SendMessageW( top_child, WM_SETREDRAW, TRUE, 0 );
+                if (cs->style & WS_MAXIMIZE)
+                {
+                    /* if the new window is maximized don't bother repainting */
+                    SendMessageW( top_child, WM_SETREDRAW, FALSE, 0 );
+                    ShowWindow( top_child, SW_SHOWNORMAL );
+                    SendMessageW( top_child, WM_SETREDRAW, TRUE, 0 );
+                }
+                else ShowWindow( top_child, SW_SHOWNORMAL );
             }
         }
     }