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server: Subtract the current update region from the valid rect when a window client area is changed.

This commit is contained in:
Alexandre Julliard 2012-06-18 17:11:55 +02:00
parent e834c920ec
commit 0816a04d92
1 changed files with 7 additions and 0 deletions
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7
server/window.c
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@ -1645,6 +1645,13 @@ static void set_window_pos( struct window *win, struct window *previous,
if (tmp)
{
set_region_rect( tmp, &valid_rects[0] );
/* subtract update region since invalid parts of the valid rect won't be copied */
if (win->update_region)
{
offset_region( tmp, -window_rect->left, -window_rect->top );
subtract_region( tmp, tmp, win->update_region );
offset_region( tmp, window_rect->left, window_rect->top );
}
if (subtract_region( tmp, win_rgn, tmp )) win_rgn = tmp;
else free_region( tmp );
}