I want to program using VC6.0,And when I use its OCX to open a specfic mappoint,by the way ,it is based on dialogue,it can pen the map,but it will report a error .and the code ishow to solve it? have any example?Code:BOOL CRouteDirectionDlg::OnInitDialog() { CDialog::OnInitDialog(); .......... this->m_ctlMappoint.OpenMap("C:\\lazone.ptm"); ... }