mfc程序小结

1.单例进程
在CxxApp类的InitInstance()开头添加代码

	//利用互斥实现单例进程模式
	HANDLE   hMutex = ::CreateMutex(NULL, TRUE, _T("appIdentification"));
	if (hMutex != NULL)
	{
		if (GetLastError() == ERROR_ALREADY_EXISTS)
		{
			MessageBox(NULL, _T("程序已经运行"), _T("提示"), 0);
			CloseHandle(hMutex);
			return   FALSE;
		}
	}