LRESULT OnNCCalcSize(UINT message, WPARAM w_param, LPARAM l_param);
LRESULT OnSize(UINT message, WPARAM w_param, LPARAM l_param);
LRESULT OnNCCalcSize(UINT message, WPARAM w_param, LPARAM l_param);
LRESULT OnSize(UINT message, WPARAM w_param, LPARAM l_param);