logindlg.cpp

零基础学Visual.C....教案PPT.随书光盘-452M.zip

// LoginDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Ch11Demo1.h"
#include "LoginDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CLoginDlg dialog


CLoginDlg::CLoginDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CLoginDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CLoginDlg)
	m_password = _T("");
	m_user = _T("");
	//}}AFX_DATA_INIT
	login_num=0;
}


void CLoginDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CLoginDlg)
	DDX_Text(pDX, IDC_PASSWORD, m_password);
	DDV_MaxChars(pDX, m_password, 12);
	DDX_Text(pDX, IDC_USER, m_user);
	DDV_MaxChars(pDX, m_user, 12);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CLoginDlg, CDialog)
	//{{AFX_MSG_MAP(CLoginDlg)
	ON_BN_CLICKED(IDC_CHECK, OnCheck)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLoginDlg message handlers

BOOL CLoginDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CLoginDlg::OnCheck() 
{
	// TODO: Add your control notification handler code here
	UpdateData(true);
	if(m_user=="gaoshou"&&m_password=="790904")//通过验证
	{
		AfxMessageBox("登录成功，进入程序！");
	}
	else if(login_num<3)//登录失败次数少于3次
	{
		AfxMessageBox("用户名和密码设置错误，请重新设置！");
		login_num++;
		m_user="";
		m_password="";
		UpdateData(false);	
		return;
	}
	else
	{
		AfxMessageBox("用户名和密码设置错误，无法进入程序！");
		AfxGetMainWnd()->PostMessage(WM_QUIT);//退出主程序
		EndDialog(IDCANCEL);//退出对话框，放回值为IDCANCEL
	}
	CDialog::OnOK();//退出对话框，放回值为IDOK	
}

void CLoginDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	AfxMessageBox("用户名和密码设置错误，无法进入程序！");
	AfxGetMainWnd()->PostMessage(WM_QUIT);//退出主程序
	CDialog::OnCancel();//退出对话框，放回值为IDCANCEL
}