// hello.cpp : Minimal MFC Windows app. #include class CHelloWindow : public CFrameWnd { public: CHelloWindow() { Create(NULL, _T("Hello World!"), WS_OVERLAPPEDWINDOW, rectDefault); } }; class CHelloApp : public CWinApp { public: virtual BOOL InitInstance() { m_pMainWnd = new CHelloWindow(); m_pMainWnd->ShowWindow(m_nCmdShow); m_pMainWnd->UpdateWindow(); return TRUE; } }; CHelloApp HelloApp; // HelloApp's constructor initializes and runs the app