Fix crash when intersecting with NULL region.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42874 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2006-10-31 23:03:32 +00:00
parent ac7d3dd157
commit 93da796db4
1 changed files with 2 additions and 1 deletions
--- 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