Я написал код в MFC для формы входа
мой код здесь
// login1Dlg.cpp : implementation file
//
#include "stdafx.h"
#include "login1.h"
#include "login1Dlg.h"
#include "afxdialogex.h"
//#include "LOGINDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// Clogin1Dlg dialog
Clogin1Dlg::Clogin1Dlg(CWnd* pParent /*=NULL*/)
: CDialogEx(Clogin1Dlg::IDD, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
m_username = _T("");
m_password = _T("");
}
void Clogin1Dlg::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
DDX_Text(pDX, IDC_USERNAME_EDIT, m_username);
DDX_Text(pDX, IDC_PASSWORD_EDIT, m_password);
}
BEGIN_MESSAGE_MAP(Clogin1Dlg, CDialogEx)
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_OK_BUTTON, &Clogin1Dlg::OnBnClickedOkButton)
END_MESSAGE_MAP()
// Clogin1Dlg message handlers
BOOL Clogin1Dlg::OnInitDialog()
{
CDialogEx::OnInitDialog();
// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
// TODO: Add extra initialization here
return TRUE; // return TRUE unless you set the focus to a control
}
// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.
void Clogin1Dlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialogEx::OnPaint();
}
}
// The system calls this function to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR Clogin1Dlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
void Clogin1Dlg::OnBnClickedOkButton()
{
// TODO: Add your control notification handler code here
UpdateData();
char UsernameFromFile[20], PasswordFromFile[20];
FILE *fleCredentials;
bool ValidLogin = false;
if(m_username == "" )
{
AfxMessageBox(_T("You must provide a username and a password or click Cancel"));
return;
}
if( m_password == "" )
{
AfxMessageBox(_T("Invalid Login"));
return;
}
try {
// Open the file for reading
fleCredentials = fopen("credentials.txt", "r");
// Scan the file from beginning to end
while( !feof(fleCredentials) )
{
//Read a username
fscanf(fleCredentials, "%s", UsernameFromFile);
//Compare the typed username with the username from the file
if(strcmp((LPCTSTR)m_username, UsernameFromFile) == 0 )
{
// With the current username, retrieve the corresponding password
fscanf(fleCredentials, "%s", PasswordFromFile);
//Compare the typed password with the one on file
if( strcmp((LPCTSTR)m_password, PasswordFromFile) == 0 )
{
ValidLogin = true;
}
else
ValidLogin = false;
}
}
if( ValidLogin == true )
OnOK();
else
{
AfxMessageBox(_T("Invalid Credentials. Please try again"));
//this->m_EditUsername.SetFocus();
}
fclose(fleCredentials);
}
catch(...)
{
AfxMessageBox(_T("Could not validate the credentials"));
}
UpdateData(FALSE);
}
Но я получил эту ошибку
Ошибка 3 ошибка C2664: 'strcmp': невозможно преобразовать параметр 1 из LPCTSTR в const char * e: \ win32 \ test \ login1 \ login1dlg.cpp 130 1 login1
Мне нужна небольшая помощь от u