Fixup Blit so it can be used with a source that is a wxBufferedDC,

since wxBufferedDC doesn't derive from wxMemoryDC any more.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41965 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/dcbuffer.h

@@ -222,6 +222,10 @@ public:
     {
         return m_targetDc->GetGDKWindow();
     }
+    virtual wxBitmap GetSelectedBitmap() const
+    {
+        return m_targetDc->GetSelectedBitmap();
+    }
 #endif
 
     bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,