ON_WM_NCCALCSIZE() void CMyListCtrl::OnNcCalcSize(BOOL bCalcValidRects, NCCALCSIZE_PARAMS FAR* lpncsp) { ModifyStyle(WS_HSCROLL | WS_VSCROLL,0,0); CListCtrl::OnNcCalcSize(bCalcValidRects, lpncsp); }