wxBitmapButton(void);
wxBitmapButton( wxWindow *parent, wxWindowID id, const wxBitmap &bitmap,
const wxPoint &pos = wxDefaultPosition, const wxSize &size = wxDefaultSize,
wxBitmapButton(void);
wxBitmapButton( wxWindow *parent, wxWindowID id, const wxBitmap &bitmap,
const wxPoint &pos = wxDefaultPosition, const wxSize &size = wxDefaultSize,