virtual void DoCrossHair(wxCoord x, wxCoord y);
virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
+ virtual void DoDrawRotatedText(const wxString &text, wxCoord x, wxCoord y, double angle);
virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
wxDC *source, wxCoord xsrc, wxCoord ysrc,