user32: Always update the visible region for cross-process DCEs.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>

user32: Always update the visible region for cross-process DCEs.
e7f30014 · Alexandre Julliard · d0e8170c · e7f30014
Commit e7f30014 authored Jul 24, 2017 by Alexandre Julliard
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painting.c dlls/user32/painting.c +3 -0

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--- a/dlls/user32/painting.c
+++ b/dlls/user32/painting.c
@@ -1111,6 +1111,9 @@ HDC WINAPI GetDCEx( HWND hwnd, HRGN hrgnClip, DWORD flags )
    dce->hwnd = hwnd;
    dce->flags = (dce->flags & ~user_flags) | (flags & user_flags);

+    /* cross-process invalidation is not supported yet, so always update the vis rgn */
+    if (!WIN_IsCurrentProcess( hwnd )) bUpdateVisRgn = TRUE;
+
    if (SetHookFlags( dce->hdc, DCHF_VALIDATEVISRGN )) bUpdateVisRgn = TRUE;  /* DC was dirty */

    if (bUpdateVisRgn) update_visible_region( dce );