dialogtestdlg.cpp

这是用VC编写的一个自动检测到一个错误对话筐然后自动把他关掉。可以作为新人学习资料哦！

// DialogTestDlg.cpp : implementation file
//

#include "stdafx.h"
#include "DialogTest.h"
#include "DialogTestDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

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()

/////////////////////////////////////////////////////////////////////////////
// CDialogTestDlg dialog

CDialogTestDlg::CDialogTestDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDialogTestDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDialogTestDlg)
		// 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 CDialogTestDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDialogTestDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDialogTestDlg, CDialog)
	//{{AFX_MSG_MAP(CDialogTestDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BTN_STOPTIMER, OnBtnStoptimer)
	ON_WM_CLOSE()
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDialogTestDlg message handlers

BOOL CDialogTestDlg::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
	m_TimerID  = 0;
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CDialogTestDlg::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 CDialogTestDlg::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 CDialogTestDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CDialogTestDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	m_TimerID = SetTimer(1,1000,NULL);
	MessageBox("OK");
	OnBtnStoptimer();
}

void CDialogTestDlg::OnBtnStoptimer() 
{
	// TODO: Add your control notification handler code here
	if(m_TimerID != 0)
	{
		this->KillTimer(m_TimerID);
		m_TimerID = 0;
	}
}

void CDialogTestDlg::OnClose() 
{
	// TODO: Add your message handler code here and/or call default
	OnBtnStoptimer();
	CDialog::OnClose();
}

void CDialogTestDlg::OnTimer(UINT nIDEvent) 
{
	DWORD Tick = ::GetTickCount();

	HWND hCurWnd = this->m_hWnd;

	//	//得到最前窗口的 handle,如果有 msg box 因为 messagebox 在最前面所以得到的是 messagebox 的handle
	HWND hMsgBoxWnd = ::GetForegroundWindow();

	//得到当前主窗口(m_hWnd) 和刚得到的窗口( hMsgBoxWnd) 所属的线程
	//因为如果是 messagebox 的话他和  前主窗口(m_hWnd) 因该属于一个线程
	DWORD dwCurThreadID;
	DWORD dwMsgBoxThreadID;
	GetWindowThreadProcessId(hCurWnd,&dwCurThreadID);
	GetWindowThreadProcessId(hMsgBoxWnd,&dwMsgBoxThreadID);
	
	//如果是主窗口外的另一个窗口并且 和主窗口属于同一个窗口则 应该是刚刚
	//跳出来的 messagebox 发送 WM_CLOSE 消息关闭窗口


	//你可以添加其他的判别方法判断是不时你要关闭的窗口
	if(hCurWnd != hMsgBoxWnd && dwCurThreadID == dwMsgBoxThreadID)
	{
		::SendMessage(hMsgBoxWnd,WM_CLOSE,0,0);
		OnBtnStoptimer();	//停止定时器
	}

	TRACE("Timer (%d)\n", Tick);
	CDialog::OnTimer(nIDEvent);
}