BOOL CMyListCtrl::OnNotify(WPARAM wParam,LPARAM lParam, LRESULT *pResult) { HD_NOTIFY *phdn = (HD_NOTIFY *)lParam; if( phdn->hdr.code == HDN_BEGINTRACK ) { // カラム0を固定 if( phdn->iItem == 0 ) { *pResult = TRUE; return(1); } } return(0); }