virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
virtual bool MSWOnScroll(int orientation, WXWORD wParam,
WXWORD pos, WXHWND control);
virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
virtual bool MSWOnScroll(int orientation, WXWORD wParam,
WXWORD pos, WXHWND control);