- wxMemoryDC( const wxBitmap& bitmap = wxNullBitmap );
- wxMemoryDC(wxDC *dc); // Create compatible DC
+ wxMemoryDCImpl( wxMemoryDC *owner );
+ wxMemoryDCImpl( wxMemoryDC *owner, wxBitmap& bitmap );
+ wxMemoryDCImpl( wxMemoryDC *owner, wxDC *dc ); // Create compatible DC