clock.h

这是MFC Windows程序设计（第2版）

class CMyApp : public CWinApp
{
public:
    virtual BOOL InitInstance ();
};

class CMainWindow : public CFrameWnd
{
protected:
    BOOL m_bFullWindow;
    BOOL m_bStayOnTop;

    int m_nPrevSecond;		
    int m_nPrevMinute;
    int m_nPrevHour;

    void DrawClockFace (CDC* pDC);
    void DrawSecondHand (CDC* pDC, int nLength, int nScale, int nDegrees,
	    COLORREF clrColor);
    void DrawHand (CDC* pDC, int nLength, int nScale, int nDegrees,
	    COLORREF clrColor);

    void SetTitleBarState ();
    void SetTopMostState ();
    void SaveWindowState ();
    void UpdateSystemMenu (CMenu* pMenu);

public:
    CMainWindow ();
    virtual BOOL PreCreateWindow (CREATESTRUCT& cs);
    BOOL RestoreWindowState ();

protected:
    afx_msg int OnCreate (LPCREATESTRUCT lpcs);
    afx_msg void OnGetMinMaxInfo (MINMAXINFO* pMMI);
    afx_msg void OnTimer (UINT nTimerID);
    afx_msg void OnPaint ();
    afx_msg UINT OnNcHitTest (CPoint point);
    afx_msg void OnSysCommand (UINT nID, LPARAM lParam);
    afx_msg void OnContextMenu (CWnd* pWnd, CPoint point);
    afx_msg void OnEndSession (BOOL bEnding);
    afx_msg void OnClose ();

    DECLARE_MESSAGE_MAP ()
};