parentprocessdlg.cpp

MFC程序开发参考大全 【明日科技】宋坤 刘锐宁 李伟明 【丛 书 名】 软件工程师典藏 【出 版 社】 人民邮电出版社 本书详细介绍了MFC框架中所有常用类及控件的应用

// ParentProcessDlg.cpp : implementation file
//

#include "stdafx.h"
#include "ParentProcess.h"
#include "ParentProcessDlg.h"

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

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

//Custom Message
#define CM_THREAD  WM_USER+100


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()

/////////////////////////////////////////////////////////////////////////////
// CParentProcessDlg dialog

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

BEGIN_MESSAGE_MAP(CParentProcessDlg, CDialog)
	//{{AFX_MSG_MAP(CParentProcessDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(CREATEEVENT, OnCREATEEVENT)
	ON_BN_CLICKED(SETEVENTSIGNAL, OnSETEVENTSIGNAL)
	ON_BN_CLICKED(SETEVENTUNSIGNAL, OnSETEVENTUNSIGNAL)
	ON_BN_CLICKED(CREATECHILDPROCESS, OnCREATECHILDPROCESS)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CParentProcessDlg message handlers

BOOL CParentProcessDlg::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 CParentProcessDlg::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 CParentProcessDlg::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 CParentProcessDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CParentProcessDlg::OnOK() 
{

}

//Create Event Kernal Object
void CParentProcessDlg::OnCREATEEVENT() 
{
	SECURITY_ATTRIBUTES Sec;
	Sec.nLength = sizeof(SECURITY_ATTRIBUTES);
	Sec.lpSecurityDescriptor = NULL;
	Sec.bInheritHandle = TRUE;

	m_hEvent = CreateEvent(&Sec,TRUE,FALSE,"EventObject");
	if (m_hEvent != NULL)
		MessageBox("事件创建成功");
}

//Set Event To Signal State
void CParentProcessDlg::OnSETEVENTSIGNAL() 
{
	SetEvent(m_hEvent);
}

//Set Event To Unsignal State
void CParentProcessDlg::OnSETEVENTUNSIGNAL() 
{
	ResetEvent(m_hEvent);	
}

//Create Child Process
void CParentProcessDlg::OnCREATECHILDPROCESS() 
{
	CFileDialog Dlg(TRUE,"exe",NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,"Exe文件|*.exe",this);
	if (Dlg.DoModal()==IDOK)
	{
		CString filename = Dlg.GetPathName();

		SECURITY_ATTRIBUTES ProcAttr;
		ProcAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
		ProcAttr.bInheritHandle = TRUE;
		ProcAttr.lpSecurityDescriptor = NULL;

		STARTUPINFO strinfo;
		memset(&strinfo,0,sizeof(strinfo));
		strinfo.cb = sizeof(strinfo);
		strinfo.cbReserved2 = 0;
		strinfo.dwFlags =STARTF_USESHOWWINDOW;
		strinfo.wShowWindow = SW_SHOWDEFAULT;

		PROCESS_INFORMATION ProInfo;
		HANDLE temp =GetCurrentProcess();

		//create chiled process where not inherit parent process's event handle
		CreateProcess(filename,NULL,&ProcAttr,NULL,FALSE,NORMAL_PRIORITY_CLASS|CREATE_NEW_CONSOLE,NULL,NULL,&strinfo,&ProInfo);	
		//return event handle where duplicate to child process
		HANDLE htarget;
		// Duplicate event handle to child process
		DuplicateHandle(GetCurrentProcess(),m_hEvent,ProInfo.hProcess,&htarget,0,TRUE,DUPLICATE_SAME_ACCESS);
		//Ensure post message to thread message queue successfull

		HANDLE hinstance =  ProInfo.hProcess;

		while(true)
		{
			if (PostThreadMessage(ProInfo.dwThreadId,CM_THREAD,0,(long)htarget))
				break;
		}
	}
}