vc如何退出程序

vc 如何退出程序

1、OnOK()或OnCancel()//只对窗口程序有用

2、PostQuitMessage(0);//最常用

3、ExitProcess(0);

4、

void CMainFrame::OnClose() { // TODO: Add your message handler code here and/or call default if (MessageBox("确定要退出吗？","提示",MB_YESNO|MB_DEFBUTTON2)==IDYES) { CFrameWnd::OnClose(); } }

如：

void CCsView::OnShutdown() //自定义 { // TODO: Add your command handler code here if (MessageBox("确定要退出吗？","提示",MB_YESNO|MB_DEFBUTTON2)==IDYES) { PostQuitMessage(0); } }

举个例子,我要做一个软件,所以新建一个单文档的应用程序,但是想让用户先进行登陆,所以添加了一个登陆对话框(双击对话框添加新类等就不提了),然后,在APP类中的适当位置进行对话框的显示,并判断(不进行具体的实现了,只是检验一下单击了确定还是取消按钮),如果点击了"确定"就进入主界面,如果点击了取消就立即终止程序.

 CLgnDlg lgndlg;  if(IDOK==lgndlg.DoModal())  {  }  else  {  //PostQuitMessage(0);  //((CMainFrame*)AfxGetMainWnd())->SendMessage(WM_CLOSE);  ExitProcess(0);  }  CSingleDocTemplate* pDocTemplate;  pDocTemplate = new CSingleDocTemplate(   IDR_MAINFRAME,   RUNTIME_CLASS(CTestBDoc),   RUNTIME_CLASS(CMainFrame),       // main SDI frame window   RUNTIME_CLASS(CTestBView));  AddDocTemplate(pDocTemplate);

 // Parse command line for standard shell commands, DDE, file open  CCommandLineInfo cmdInfo;  ParseCommandLine(cmdInfo);

 // Dispatch commands specified on the command line  if (!ProcessShellCommand(cmdInfo))   return FALSE;

 // The one and only window has been initialized, so show and update it.  m_pMainWnd->ShowWindow(SW_SHOW);  m_pMainWnd->UpdateWindow();

 return TRUE; }