在已经做好的MFC项目中添加一个登陆界面

       在InitIistance中添加一下代码：

 

BOOL CCouseApp::InitInstance()
{
	AfxEnableControlContainer();

	// Standard initialization
	// If you are not using these features and wish to reduce the size
	//  of your final executable, you should remove from the following
	//  the specific initialization routines you do not need.

#ifdef _AFXDLL
	Enable3dControls();			// Call this when using MFC in a shared DLL
#else
	Enable3dControlsStatic();	// Call this when linking to MFC statically
#endif

	CCouseDlg dlg;
	CLoginDlg loginDlg;
	//m_pMainWnd = &dlg;
	int nResponse = loginDlg.DoModal();
	if (nResponse == IDOK)
	{
		// TODO: Place code here to handle when the dialog is
		//  dismissed with OK
		if (loginDlg.m_Name == _T("Foxfan") && loginDlg.m_Code == _T("111"))
		{
			dlg.DoModal();
		}
		else
		{
			AfxMessageBox(_T("嘿嘿，你输入的帐号或者密码不符!"));
			return FALSE;
		} 
	}
	else
	{
		// TODO: Place code here to handle when the dialog is
		//  dismissed with Cancel
		return FALSE;
	}

	// Since the dialog has been closed, return FALSE so that we exit the
	//  application, rather than start the application's message pump.
}