简单的问题 求助

[yslzhf]

// MultiThread1Dlg.h : header file
//
void ThreadFunc();
#if !defined(AFX_MULTITHREAD1DLG_H__BDCFC803_3EB4_4B81_BA86_0DC08562A4AC__INCLUDED_)
#define AFX_MULTITHREAD1DLG_H__BDCFC803_3EB4_4B81_BA86_0DC08562A4AC__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

/////////////////////////////////////////////////////////////////////////////
// CMultiThread1Dlg dialog

class CMultiThread1Dlg : public CDialog
{
// Construction
public:
CMultiThread1Dlg(CWnd* pParent = NULL); // standard constructor

// Dialog Data
//{{AFX_DATA(CMultiThread1Dlg)
enum { IDD = IDD_MULTITHREAD1_DIALOG };
// NOTE: the ClassWizard will add data members here
//}}AFX_DATA

// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CMultiThread1Dlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL

// Implementation
protected:
HICON m_hIcon;

HANDLE hThread;
DWORD ThreadID;
// Generated message map functions
//{{AFX_MSG(CMultiThread1Dlg)
virtual BOOL OnInitDialog();
afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
afx_msg void OnStart();
afx_msg void OnStop();
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_MULTITHREAD1DLG_H__BDCFC803_3EB4_4B81_BA86_0DC08562A4AC__INCLUDED_)


// MultiThread1Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "MultiThread1.h"
#include "MultiThread1Dlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
volatile BOOL m_bRun;

class CAboutDlg : public CDialog
{
public:
CAboutDlg();

// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA

// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL

// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMultiThread1Dlg dialog

CMultiThread1Dlg::CMultiThread1Dlg(CWnd* pParent /*=NULL*/)
: CDialog(CMultiThread1Dlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CMultiThread1Dlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMultiThread1Dlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CMultiThread1Dlg)
// NOTE: the ClassWizard will add DDX and DDV calls here
//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMultiThread1Dlg, CDialog)
//{{AFX_MSG_MAP(CMultiThread1Dlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_START, OnStart)
ON_BN_CLICKED(IDC_STOP, OnStop)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMultiThread1Dlg message handlers

BOOL CMultiThread1Dlg::OnInitDialog()
{
CDialog::OnInitDialog();

// Add "About..." menu item to system menu.

// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);

CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}

// 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
}

void CMultiThread1Dlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}

// 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 CMultiThread1Dlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting

SendMessage(WM_ICONERASEBKGND, (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
{
CDialog::OnPaint();
}
}

// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CMultiThread1Dlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}

void ThreadFunc()
{
CTime time;
CString strTime;
m_bRun = TRUE;
while(m_bRun)
{
time = CTime::GetCurrentTime();
strTime = time.Format("%H:%M:%S");
::SetDlgItemText(AfxGetMainWnd()->m_hWnd,IDC_TIME,strTime);
Sleep(1000);
}
}

void CMultiThread1Dlg::OnStart()
{
// TODO: Add your control notification handler code here
hThread = CreateThread(NULL,
0,
(LPTHREAD_START_ROUTINE)ThreadFunc(),
NULL,
0,
&ThreadID);
GetDlgItem(IDC_START)->EnableWindow(FALSE);
GetDlgItem(IDC_STOP)->EnableWindow(TRUE);
}

void CMultiThread1Dlg::OnStop()
{
// TODO: Add your control notification handler code here
m_bRun = FALSE;
GetDlgItem(IDC_START)->EnableWindow(TRUE);
GetDlgItem(IDC_STOP)->EnableWindow(FALSE);
}


编译后出错：
E:\person\MultiThread1\MultiThread1Dlg.cpp(194) : error C2440: 'type cast' : cannot convert from 'void' to 'unsigned long (__stdcall *)(void *)'
Expressions of type void cannot be converted to other types


谁告诉一下，是怎么回事？正在学习，不太懂啊。。

[dahaiI0]

This function is an application-defined function that serves as the starting address for a thread.

Specify this address when calling the CreateThread function.

The LPTHREAD_START_ROUTINE type defines a pointer to this callback function.

ThreadProc is a placeholder for the application-defined function name.

DWORD ThreadProc(
LPVOID lpParameter
);

线程函数声明定义错了

[yslzhf]

编译过了，运行不了啊，二楼朋友再帮看一下，还哪里不对？

[yslzhf]

虽说没解决，但没有人回答了，就这样吧。