testevc.cpp

自己使用evc4.0写的一个程序

// testevc.cpp : Defines the class behaviors for the application.
//

#include "stdafx.h"
#include "testevc.h"
#include "testevcDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CTestevcApp

BEGIN_MESSAGE_MAP(CTestevcApp, CWinApp)
	//{{AFX_MSG_MAP(CTestevcApp)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTestevcApp construction

CTestevcApp::CTestevcApp()
	: CWinApp()
{
	// TODO: add construction code here,
	// Place all significant initialization in InitInstance
}

/////////////////////////////////////////////////////////////////////////////
// The one and only CTestevcApp object

CTestevcApp theApp;

/////////////////////////////////////////////////////////////////////////////
// CTestevcApp initialization

BOOL CTestevcApp::InitInstance()
{
	// Standard initialization
	// If you are not using these features and wish to reduce the size
	//  of your final executable, you should remove from the following
	//  the specific initialization routines you do not need.

    HANDLE   hMutex   =   CreateMutex   (NULL,FALSE,TEXT("1"));   
  if   ( ERROR_ALREADY_EXISTS   ==   GetLastError   ()   )   
  {   
  //程序已经运行,关闭原来的程序，继续执行本程序
	  
  ::PostMessage(FindWindow(NULL,_T("1")),WM_CLOSE,0,0);	  

  }


ShowCursor(FALSE);
	CTestevcDlg dlg;
	m_pMainWnd = &dlg;


	int nResponse = dlg.DoModal();
	if (nResponse == IDOK)
	{
		// TODO: Place code here to handle when the dialog is
		//  dismissed with OK
	}
	else if (nResponse == IDCANCEL)
	{
		// TODO: Place code here to handle when the dialog is
		//  dismissed with Cancel
	}

	// Since the dialog has been closed, return FALSE so that we exit the
	//  application, rather than start the application's message pump.
	return FALSE;
}