From: Rémi Bernon <rbernon(a)codeweavers.com> Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=57665 --- dlls/win32u/window.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/dlls/win32u/window.c b/dlls/win32u/window.c index 3711c76f5a6..bf7c01385bd 100644 --- a/dlls/win32u/window.c +++ b/dlls/win32u/window.c @@ -1818,6 +1818,10 @@ static NTSTATUS get_window_region( HWND hwnd, BOOL surface, HRGN *region, RECT * { size_t reply_size = wine_server_reply_size( reply ); *visible = wine_server_get_rect( reply->visible_rect ); + + /* if the clipping region is requested, return an empty region if it already matches the visible rect */ + if (surface && reply_size == sizeof(*visible) && EqualRect( visible, (RECT *)data->Buffer )) reply_size = 0; + if (reply_size) { data->rdh.dwSize = sizeof(data->rdh); -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/7142