/////////////////////////////////////////////////////////////////////////////
// SystemTray.h : header file
//
// Written by Chris Maunder (chrismaunder@codeguru.com)
// Copyright (c) 1998.
//
// This code may be used in compiled form in any way you desire. This
// file may be redistributed unmodified by any means PROVIDING it is 
// not sold for profit without the authors written consent, and 
// providing that this notice and the authors name is included. If 
// the source code in  this file is used in any commercial application 
// then acknowledgement must be made to the author of this file 
// (in whatever form you wish).
//
// This file is provided "as is" with no expressed or implied warranty.
// The author accepts no liability if it causes any damage to your
// computer, causes your pet cat to fall ill, increases baldness or
// makes you car start emitting strange noises when you start it up.
//
// Expect bugs.
// 
// Please use and enjoy. Please let me know of any bugs/mods/improvements 
// that you have found/implemented and I will fix/incorporate them into this
// file. 

#ifndef _INCLUDED_SYSTEMTRAY_H_
#define _INCLUDED_SYSTEMTRAY_H_

#include <afxtempl.h>

/////////////////////////////////////////////////////////////////////////////
// CSystemTray window
//在這里自己派生了一個類要注意這個類的各個成員函數以及成員變量的
class CSystemTray : public CWnd//自己派生了一個類CSystemTray
{
// Construction/destruction
public:
    CSystemTray();//類的構造函數
    CSystemTray(CWnd* pWnd, UINT uCallbackMessage, LPCTSTR szTip, HICON icon, UINT uID);
    virtual ~CSystemTray();

    DECLARE_DYNAMIC(CSystemTray)

// Operations
public:
    BOOL Enabled() { return m_bEnabled; }
    BOOL Visible() { return !m_bHidden; }

    // Create the tray icon
    BOOL Create(CWnd* pParent, UINT uCallbackMessage, LPCTSTR szTip, HICON icon, UINT uID);

    // Change or retrieve the Tooltip text
    BOOL    SetTooltipText(LPCTSTR pszTooltipText);
    BOOL    SetTooltipText(UINT nID);
    CString GetTooltipText() const;

    // Change or retrieve the icon displayed
    BOOL  SetIcon(HICON hIcon);
    BOOL  SetIcon(LPCTSTR lpszIconName);
    BOOL  SetIcon(UINT nIDResource);
    BOOL  SetStandardIcon(LPCTSTR lpIconName);
    BOOL  SetStandardIcon(UINT nIDResource);
    HICON GetIcon() const;
    void  HideIcon();
    void  ShowIcon();
    void  RemoveIcon();
    void  MoveToRight();

    // For icon animation
    BOOL  SetIconList(UINT uFirstIconID, UINT uLastIconID); 
    BOOL  SetIconList(HICON* pHIconList, UINT nNumIcons); 
    BOOL  Animate(UINT nDelayMilliSeconds, int nNumSeconds = -1);
    BOOL  StepAnimation();
    BOOL  StopAnimation();

    // Change menu default item
    void GetMenuDefaultItem(UINT& uItem, BOOL& bByPos);
    BOOL SetMenuDefaultItem(UINT uItem, BOOL bByPos);

    // Change or retrieve the window to send notification messages to
    BOOL  SetNotificationWnd(CWnd* pNotifyWnd);
    CWnd* GetNotificationWnd() const;

    // Default handler for tray notification message
    virtual LRESULT OnTrayNotification(WPARAM uID, LPARAM lEvent);

// Overrides
    // ClassWizard generated virtual function overrides
    //{{AFX_VIRTUAL(CSystemTray)
	protected:
	virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam);
	//}}AFX_VIRTUAL

// Implementation
protected:
    void Initialise();

    BOOL            m_bEnabled;   // does O/S support tray icon?
    BOOL            m_bHidden;    // Has the icon been hidden?
    NOTIFYICONDATA  m_tnd;

    CArray<HICON, HICON> m_IconList;
    static UINT  m_nIDEvent;
    UINT         m_uIDTimer;
    int          m_nCurrentIcon;
    COleDateTime m_StartTime;
    int          m_nAnimationPeriod;
    HICON        m_hSavedIcon;
    UINT         m_DefaultMenuItemID;
    BOOL         m_DefaultMenuItemByPos;

// Generated message map functions
protected:
	//{{AFX_MSG(CSystemTray)
	afx_msg void OnTimer(UINT nIDEvent);
	//}}AFX_MSG

    DECLARE_MESSAGE_MAP()
};


#endif

/////////////////////////////////////////////////////////////////////////////