From 67c0893d5d77be507d70d1a74e79738078381bfe Mon Sep 17 00:00:00 2001
From: Christoph von Wittich <christoph_vw@reactos.org>
Date: Tue, 4 Dec 2007 15:31:11 +0000
Subject: [PATCH] check for a valid dc before accessing Dc_Attr

svn path=/trunk/; revision=30997
---
 reactos/subsystems/win32/win32k/objects/gdibatch.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/reactos/subsystems/win32/win32k/objects/gdibatch.c b/reactos/subsystems/win32/win32k/objects/gdibatch.c
index bcbfb62b157..6d2e6ea5931 100644
--- a/reactos/subsystems/win32/win32k/objects/gdibatch.c
+++ b/reactos/subsystems/win32/win32k/objects/gdibatch.c
@@ -88,6 +88,7 @@ GdiFlushUserBatch(HDC hDC, PGDIBATCHHDR pHdr)
      case GdiBCSetBrushOrg:
      {
         PGDIBSSETBRHORG pgSBO;
+        if(!dc) break;
         pgSBO = (PGDIBSSETBRHORG) pHdr;
         Dc_Attr->ptlBrushOrigin = pgSBO->ptlBrushOrigin;
         break;