X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ad667945478cda0c0a33e154f1d4403402cffb9e..bdb148e06daf243c5b5b628f8840f7aeb7383689:/src/mac/carbon/dcclient.cpp

diff --git a/src/mac/carbon/dcclient.cpp b/src/mac/carbon/dcclient.cpp
index 9fcd763bb8..27164c2c9e 100644
--- a/src/mac/carbon/dcclient.cpp
+++ b/src/mac/carbon/dcclient.cpp
@@ -191,6 +191,11 @@ void wxWindowDC::DoGetSize( int* width, int* height ) const
 
 wxBitmap wxWindowDC::DoGetAsBitmap(const wxRect *subrect) const
 {
+    // wxScreenDC is derived from wxWindowDC, so a screen dc will
+    // call this method when a Blit is performed with it as a source.
+    if (!m_window)
+        return wxNullBitmap;
+        
     ControlRef handle = (ControlRef) m_window->GetHandle();
     if ( !handle )
         return wxNullBitmap;