void OnMouseEvent(wxMouseEvent& event);
void DrawRubberBandCursor (wxDC& dc, int x, int y);
bool GetCurrentCursor (int& x, int& y);
void OnMouseEvent(wxMouseEvent& event);
void DrawRubberBandCursor (wxDC& dc, int x, int y);
bool GetCurrentCursor (int& x, int& y);