From d94028f0427c379b3ec00291c4d04dec61b2007a Mon Sep 17 00:00:00 2001
From: jimtabor <james.tabor@reactos.org>
Date: Wed, 10 Apr 2019 19:24:50 -0500
Subject: [PATCH] [0.4.12] [DDraw] Fix DxDiag tests. Fixes regression
 CORE-15905

After the DC work is done while before releasing the DC flush the GDI batch.
See CORE-15905. Someone may need to notify wine about this change.

cherry picked from commit 0.4.13-dev-7-g
84d518b19089c04f0423a7e99dda2728fc7670a7
---
 dll/directx/wine/ddraw/surface.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/dll/directx/wine/ddraw/surface.c b/dll/directx/wine/ddraw/surface.c
index 5eefc228e64..11a0e6ba8db 100644
--- a/dll/directx/wine/ddraw/surface.c
+++ b/dll/directx/wine/ddraw/surface.c
@@ -2311,7 +2311,9 @@ static HRESULT WINAPI ddraw_surface7_ReleaseDC(IDirectDrawSurface7 *iface, HDC h
     HRESULT hr;
 
     TRACE("iface %p, dc %p.\n", iface, hdc);
-
+#ifdef __REACTOS__
+    GdiFlush();
+#endif
     wined3d_mutex_lock();
     if (!surface->dc)
     {