Visual C++ and MFC Programming 2nd Edition

Chapter 5: The Document/View Architecture Visual C++ and MFC Fundamentals

class CMainFrame : public CFrameWnd

{

public:

CMainFrame ();

protected:

afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);

DECLARE_MESSAGE_MAP()

};

CMainFrame::CMainFrame()

{

// Create the window's frame

Create(NULL, "Windows Application", WS_OVERLAPPEDWINDOW,

CRect(120, 100, 700, 480), NULL);

}

class CExerciseApp: public CWinApp

{

public:

BOOL InitInstance();

};

BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)

ON_WM_CREATE()

END_MESSAGE_MAP()

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)

{

// Call the base class to create the window

if( CFrameWnd::OnCreate(lpCreateStruct) == 0)

{

// If the window was successfully created, let the user know

MessageBox("The window has been created!!!");

// Since the window was successfully created, return 0

return 0;

}

// Otherwise, return - 1

return -1;

}

BOOL CExerciseApp::InitInstance()

{

m_pMainWnd = new CMainFrame ;

m_pMainWnd->ShowWindow(SW_SHOW);

m_pMainWnd->UpdateWindow();

return TRUE;

}

CExerciseApp theApp;

2. Test the application and return to MSVC

4.2.2 Window's Showing State....................................................................