logindlg.cpp

用C++语言编写得职工信息管理系统

// LoginDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Worker.h"
#include "LoginDlg.h"
#include "crectedlg.h"
#include "changpass.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_ID = _T("");
	m_Password = _T("");
	//}}AFX_DATA_INIT
}


void CLoginDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CLoginDlg)
	DDX_Control(pDX, IDOK, m_Login);
	DDX_Control(pDX, IDCANCEL, m_Cancel);
	DDX_Control(pDX, IDC_BUTTON1, m_ChangPass);
	DDX_Text(pDX, IDC_EDIT1, m_ID);
	DDX_Text(pDX, IDC_EDIT2, m_Password);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CLoginDlg, CDialog)
	//{{AFX_MSG_MAP(CLoginDlg)
	ON_BN_CLICKED(IDOK, OnLogin)
	ON_BN_CLICKED(IDC_BUTTON1, OnChangPass)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

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

void CLoginDlg::OnLogin() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	CCrecteDlg dlg;
	USERINFO info;
	CString Id;
	CString Password;
	FILE *fp;
	if((fp=fopen("userinfo.dll","rb"))==NULL)
		if(MessageBox("数据库还没创建!\n\n是否现在创建？","询问",MB_ICONQUESTION|MB_YESNO)==IDYES)
			dlg.DoModal();
		else
			exit(1);
	else
	{
		fp=fopen("userinfo.dll","rb+");
		fread(&info,sizeof(USERINFO),1,fp);
		Id.Format("%s",info.ID);
		Password.Format("%s",info.Password);
		if(m_ID!=Id)
		{
			MessageBox("该用户ID无效");
			((CEdit*)GetDlgItem(IDC_EDIT1))->SetSel(0,15);
			GetDlgItem(IDC_EDIT1)->SetFocus();
		}
		else
			if(Password!=m_Password)
			{
				MessageBox("密码错误！");
				((CEdit*)GetDlgItem(IDC_EDIT2))->SetSel(0,15);
				GetDlgItem(IDC_EDIT2)->SetFocus();
			}
			else
				OnOK();
		fclose(fp);
	}
}

void CLoginDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	exit(1);
	CDialog::OnCancel();
}

void CLoginDlg::OnChangPass() 
{
	// TODO: Add your control notification handler code here
	CChangPass dlg;
	dlg.DoModal();
}

BOOL CLoginDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	FILE *fp;
	CCrecteDlg dlg;
	if((fp=fopen("userinfo.dll","rb"))==NULL)
		if(MessageBox("数据库还没创建!\n\n是否现在创建？","询问",MB_ICONQUESTION|MB_YESNO)==IDYES)
			dlg.DoModal();
		else
			exit(1);
	GetDlgItem(IDC_EDIT1)->SetFocus();
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}