diff --git a/src/mac/carbon/graphics.cpp b/src/mac/carbon/graphics.cpp
index 0a22635202..03b56be847 100755
--- a/src/mac/carbon/graphics.cpp
+++ b/src/mac/carbon/graphics.cpp
@@ -2013,7 +2013,16 @@ wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
 
 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContext( const wxWindowDC& dc)
 {
-   return new wxMacCoreGraphicsContext(this,(CGContextRef)dc.GetWindow()->MacGetCGContextRef() );
+    wxMemoryDC* mdc = wxDynamicCast(&dc, wxMemoryDC);
+    if ( mdc )
+    {
+        return new wxMacCoreGraphicsContext(this, 
+            (CGContextRef)mdc->GetGraphicsContext()->GetNativeContext());
+    }
+    else
+    {
+        return new wxMacCoreGraphicsContext(this,(CGContextRef)dc.GetWindow()->MacGetCGContextRef() );
+    }
 }
 
 wxGraphicsContext * wxMacCoreGraphicsRenderer::CreateContextFromNativeContext( void * context )