logindlg.cpp

PC抄表软件, 用于降数据上载到PC机上, 通过USB传COM口实现.

// LoginDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Robin.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_times = 2;
	m_dwUser = 0;
	m_pas = _T("");
	//}}AFX_DATA_INIT
}


void CLoginDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CLoginDlg)
	DDX_Control(pDX, IDC_DLOG_CUSER, m_uList);
	DDX_Text(pDX, IDC_DLOG_CPASWORD, m_pas);
	DDV_MaxChars(pDX, m_pas, 16);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CLoginDlg, CDialog)
	//{{AFX_MSG_MAP(CLoginDlg)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

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

DWORD CLoginDlg::GetUserInfo() const
{
	return m_dwUser;
}
BOOL CLoginDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	USERINFO theUser;
	char * strOper[] = { {"User"},{"Administrator"} };
	UINT size = sizeof(USERINFO);
	LPBYTE bt = new unsigned char[sizeof(theUser)];
	CString strID;
	strID.Format("User%04u",0);
	int lastID;
	lastID = AfxGetApp()->GetProfileInt("User","LastID",0);
	for(int i=0;i<lastID && AfxGetApp()->GetProfileBinary("User",strID,&bt,&size);i++)
	{
		memcpy(&theUser,bt,sizeof(theUser));
		CString strInfo;
		strInfo.Format("%s [%s]",theUser.name,strOper[theUser.oper]);
		m_uList.AddString(strInfo);
		strID.Format("User%04u",i+1);
	}
	if(lastID > 0)
		m_uList.SetCurSel(1);
	delete [] bt;
	return TRUE;
}
void CLoginDlg::OnOK() 
{
	UpdateData();
	USERINFO theUser;
	UINT size = sizeof(theUser);
	LPBYTE bt = new unsigned char[sizeof(theUser)];
	CString strID;
	int id = m_uList.GetCurSel();
	strID.Format("User%04u",id);
	if(AfxGetApp()->GetProfileBinary("User",strID,&bt,&size))
	{
		memcpy(&theUser,bt,sizeof(theUser));
		delete [] bt;
		if(!m_pas.Compare(theUser.password))
		{
			m_dwUser = theUser.oper;
			CDialog::OnOK();
			return;
		}
	}
	else
	{
		delete [] bt;
		MessageBox("This user is not in the database","User Error",MB_OK|MB_ICONSTOP);
		return;
	}
	if(m_times)
	{
		m_times--;
		MessageBox("Password is wrong, Please input again...","Login failed...",MB_OK|MB_ICONSTOP);
		GetDlgItem(IDC_DLOG_CPASWORD)->SetFocus();
	}
	else
	{
		MessageBox("Password is wrong!\n this program will be closed!","Login failed...",MB_OK|MB_ICONSTOP);
		CDialog::OnCancel();
	}
}