From 93da796db4fdeeba8b2370cbc864b74b769126d5 Mon Sep 17 00:00:00 2001
From: Robert Roebling <robert@roebling.de>
Date: Tue, 31 Oct 2006 23:03:32 +0000
Subject: [PATCH]   Fix crash when intersecting with NULL region.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42874 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/gtk/dcclient.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/gtk/dcclient.cpp b/src/gtk/dcclient.cpp
index fc66d7acdd..77ed883565 100644
--- a/src/gtk/dcclient.cpp
+++ b/src/gtk/dcclient.cpp
@@ -1319,7 +1319,8 @@ bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest,
             // a clipped bitmap and therefore needs to move the origin
             // accordingly
             wxRegion tmp( xx,yy,ww,hh );
-            tmp.Intersect( m_currentClippingRegion );
+            if (!m_currentClippingRegion.IsNull())
+                tmp.Intersect( m_currentClippingRegion );
             tmp.GetBox(cx,cy,cw,ch);
 
             // Scale and clipped bitmap
-- 
2.45.2