1、Show a modal dialog void CPrjWebFoxExampleDlg::OnbtnShowDlgModal() { // TODO: Add your control notification handler code here CPrjWebFoxExampleDlgShow dlgShow; dlgShow.DoModal(); } 2、Show a modeless dialog void CPrjWebFoxExampleDlg::OnbtnShowDlgNoModal() { // TODO: Add your control notification handler code here if(!m_bShowWindow) { CPrjWebFoxExampleDlgShow* pdlgShow; pdlgShow = new CPrjWebFoxExampleDlgShow(); pdlgShow->Create(IDD_PRJWEBFOXEXAMPLEDLGSHOW_DIALOG,this); pdlgShow->ShowWindow(SW_SHOW); m_bShowWindow = true; } }