virtual wxBitmap DoGetBitmap(State which) const;
virtual void DoSetBitmap(const wxBitmap& bitmap, State which);
virtual wxSize DoGetBitmapMargins() const;
virtual void DoSetBitmapMargins(wxCoord x, wxCoord y);
virtual void DoSetBitmapPosition(wxDirection dir);
virtual wxBitmap DoGetBitmap(State which) const;
virtual void DoSetBitmap(const wxBitmap& bitmap, State which);
virtual wxSize DoGetBitmapMargins() const;
virtual void DoSetBitmapMargins(wxCoord x, wxCoord y);
virtual void DoSetBitmapPosition(wxDirection dir);