托盘程序

 VC里面要添加托盘图标和托盘菜单,大概过程：

 MSDN中介绍的结构体：

typedef struct _NOTIFYICONDATA {
    DWORD cbSize;//结构体的大小
    HWND hWnd;//窗口句柄
    UINT uID;//图标关联的ID，需要和多个托盘图标关联时用到
    UINT uFlags;//标识，表明该托盘图标需要修改的内容，如图标，提示，状态等
    UINT uCallbackMessage;//自定义回调消息
    HICON hIcon;//图标
    TCHAR szTip[64];//鼠标指着图标时的提示信息
    DWORD dwState;//图标状态
    DWORD dwStateMask;//指明dwState成员的那些位可以被设置或者访问
    TCHAR szInfo[256];//气球提示内容
    union {
        UINT uTimeout;//气球提示的超时时间
        UINT uVersion;//版本，用于Windows95和2000风格的图标消息接口
    };
    TCHAR szInfoTitle[64];//气球提示的标题
    DWORD dwInfoFlags;//气球提示的图标
    GUID guidItem;//保留
    HICON hBalloonIcon;//气球提示的图标，VISTA以上使用
} NOTIFYICONDATA, *PNOTIFYICONDATA; 

1. 先添加一个成员变量 NOTIFYICONDATA  m_NotiIcon;

2.定义自定义一个消息： #define WM_MY_TRAY_NOTIFICATION  WM_USER+100

3 .声明消息处理函数;   LRESULT OnNotifyIcon(WPARAM wParam, LPARAM lParam);

4.将消息与消息处理函数联系起来:  ON_MESSAGE(WM_MY_TRAY_NOTIFICATION,OnTrayNotification)

5. 实现消息处理：

LRESULT CW620Dlg::OnTrayNotification(WPARAM uID,LPARAM lEvent)
{
	  
	if (uID!=m_NotiIcon.uID ||
		(lEvent!=WM_RBUTTONUP && lEvent!=WM_LBUTTONDBLCLK))
		return 0;
	
	// If there's a resource menu with the same ID as the icon, use it as 
	// the right-button popup menu. CTrayIcon will interprets the first
	// item in the menu as the default command for WM_LBUTTONDBLCLK
	// 
	CMenu menu;
	if (!menu.LoadMenu(IDR_MENUICON))
		return 0;
	CMenu* pSubMenu = menu.GetSubMenu(0);
	if (!pSubMenu) 
		return 0;
	
	if (lEvent==WM_RBUTTONUP) {
		
		// Make first menu item the default (bold font)
		::SetMenuDefaultItem(pSubMenu->m_hMenu, 0, TRUE);
		
		// Display the menu at the current mouse location. There's a "bug"
		// (Microsoft calls it a feature) in Windows 95 that requires calling
		// SetForegroundWindow. To find out more, search for Q135788 in MSDN.
		//
		CPoint mouse;
		GetCursorPos(&mouse);
		::SetForegroundWindow(m_NotiIcon.hWnd);	
		::TrackPopupMenu(pSubMenu->m_hMenu, 0, mouse.x, mouse.y, 0,
			m_NotiIcon.hWnd, NULL);
		
	} else  // double click: execute first menu item
		::SendMessage(m_NotiIcon.hWnd, WM_COMMAND, pSubMenu->GetMenuItemID(0), 0);
	
	return 1; // handled	
}

6. 添加托盘图标;

          在你需要实现托盘的地方添加托盘

BOOL CW620Dlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here

	//////////////////////////////////////////////////////////////
	/*
	    Set the min tray ICON       
	*/


	//托盘结构体成员初始化
	m_NotiIcon.cbSize=sizeof(NOTIFYICONDATA); 
	m_NotiIcon.hWnd=this->m_hWnd; 
	m_NotiIcon.uFlags=NIF_MESSAGE|NIF_ICON|NIF_TIP; 
	m_NotiIcon.uCallbackMessage=WM_MY_TRAY_NOTIFICATION; 
	//用户定义的回调消息 
	CString szToolTip; 
	szToolTip=_T("W620 数据存储"); 
	_tcscpy(m_NotiIcon.szTip, szToolTip); 
	m_NotiIcon.uID=IDI_ICON2/*IDR_MAINFRAME*/; 
	HICON hIcon; 
	hIcon=AfxGetApp()->LoadIcon(IDI_ICON2); 
	m_NotiIcon.hIcon=hIcon; 
	::Shell_NotifyIcon(NIM_ADD,&m_NotiIcon); 
	 if(hIcon)::DestroyIcon(hIcon); 
}

7. 销毁图标

void CW620Dlg::OnDestroy() 
{
	// TODO: Add your message handler code here
	    ::Shell_NotifyIcon(NIM_DELETE,&m_NotiIcon);
}

8.如要隐藏任务栏程序：

void CW620Dlg::OnNcPaint() 
{
	// TODO: Add your message handler code here
	static int i = 2;
	if(i > 0)
	{
		i --;
		ShowWindow(SW_HIDE);
	}
	else
	{
		CDialog::OnNcPaint();
	}
	// Do not call CDialog::OnNcPaint() for painting messages	
}

9.处理最小化：

     重载WindowProc函数：

WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 
{
	// TODO: Add your specialized code here and/or call the base class
	switch(message)
	{
		case WM_SYSCOMMAND://如果是系统消息
		   if(wParam==SC_MINIMIZE)
			{
					 //接收到最小化消息时主窗口隐藏 
			   AfxGetApp()->m_pMainWnd->ShowWindow(SW_HIDE); 
			   return 0; 
			} 
		break; 
	} 
	
	return CWnd::WindowProc(message, wParam, lParam); 
}

10. 显示窗体

     AfxGetApp()->m_pMainWnd->ShowWindow(SW_SHOW);

11. 退出程序：

     SendMessage(WM_CLOSE,0,0); or PostMessage(WM_QUITE,0,0)