C#托盘程序示例

先拖一个NotifyIcon控件，注意：notifyIcon1.Icon = new  Icon( " Zipped 4.ico " )图标文件路径及名字，否则抛异常

代码

         public  MainForm()
        {
            InitializeComponent();
            InitNotifyIcon();            
        }

         private   void  InitNotifyIcon()
        {
            MenuItem[] mi = new  MenuItem[ 3 ];
            mi[ 0 ] = new  MenuItem();
            mi[ 0 ].Text = " 显示 " ;
            mi[ 0 ].Click +=   new  EventHandler( this .FormShow);        
            mi[ 1 ] = new  MenuItem();
            mi[ 1 ].Text = " - " ;    
            mi[ 2 ] = new  MenuItem();
            mi[ 2 ].Text = " 退出 " ;
            mi[ 2 ].Click += new  EventHandler( this .FormClose);    
            ContextMenu cm = new  ContextMenu(mi);

            notifyIcon1.MouseDoubleClick += new  MouseEventHandler(notifyIcon1_MouseDoubleClick);
            notifyIcon1.Icon = new  Icon( " Zipped 4.ico " );
            notifyIcon1.Text = " 已运行 - \\\\数据上报程序 " ;
            notifyIcon1.Visible = true ;
            notifyIcon1.ContextMenu = cm;
        }
         private   void  FormShow( object  sender, EventArgs e)
        {
             this .Visible = true ;
        }
         private   void  FormClose( object  sender, EventArgs e)
        {
             this .Close();
        }
        
         private   void  notifyIcon1_MouseDoubleClick( object  sender, MouseEventArgs e)
        {
             this .Visible = true ;
        }
        
         const   int  WM_SYSCOMMAND  =   0x112 ;
         const   int  SC_CLOSE  =   0xF060 ;
         const   int  SC_MINIMIZE  =   0xF020 ;
         const   int  SC_MAXIMIZE  =   0xF030 ;
         protected   override   void  WndProc( ref  Message m)
        {
             if (m.Msg == WM_SYSCOMMAND)
            {
                 if (m.WParam.ToInt32() == SC_CLOSE)
                {
                     this .Visible = false ;
                     return ;
                }
                 if (m.WParam.ToInt32() == SC_MINIMIZE)
                {
                     this .Visible = false ;
                     return ;
                }
            }
             base .WndProc( ref  m);
        }