From: Dmitry Timoshkov <dmitry(a)baikal.ru> Signed-off-by: Dmitry Timoshkov <dmitry(a)baikal.ru> --- dlls/win32u/dce.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/dlls/win32u/dce.c b/dlls/win32u/dce.c index cd835928c50..d86e78a070a 100644 --- a/dlls/win32u/dce.c +++ b/dlls/win32u/dce.c @@ -1920,13 +1920,20 @@ INT WINAPI NtUserGetUpdateRgn( HWND hwnd, HRGN hrgn, BOOL erase ) BOOL WINAPI NtUserGetUpdateRect( HWND hwnd, RECT *rect, BOOL erase ) { UINT flags = UPDATE_NOCHILDREN; - HRGN update_rgn; + HRGN update_rgn, client_rgn; + struct window_rects rects; BOOL need_erase; if (erase) flags |= UPDATE_NONCLIENT | UPDATE_ERASE; if (!(update_rgn = send_ncpaint( hwnd, NULL, &flags ))) return FALSE; + get_window_rects( hwnd, COORDS_SCREEN, &rects, get_thread_dpi() ); + + client_rgn = NtGdiCreateRectRgn( rects.client.left, rects.client.top, rects.client.right, rects.client.bottom ); + NtGdiCombineRgn( update_rgn, update_rgn, client_rgn, RGN_AND ); + NtGdiDeleteObjectApp( client_rgn ); + if (rect && NtGdiGetRgnBox( update_rgn, rect ) != NULLREGION) { HDC hdc = NtUserGetDCEx( hwnd, 0, DCX_USESTYLE ); -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/5665