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 using System;
 using System.Windows;
 using System.Windows.Forms;
 using System.Drawing;

 namespace Royen
 {
     public partial class SysTray : Window
     {
         private NotifyIcon notifyIcon=null;

         public SysTray()
         {
             InitializeComponent();

             InitialTray();
         }

         private void InitialTray()
         {
             //隐藏主窗体
             this.Visibility = Visibility.Hidden;

             //设置托盘的各个属性
             notifyIcon = new NotifyIcon();
             notifyIcon.BalloonTipText = "systray runnning...";
             notifyIcon.Text = "systray";
             notifyIcon.Icon = new System.Drawing.Icon("http://www.cnblogs.com/res/spring.ico");
             notifyIcon.Visible = true;
             notifyIcon.ShowBalloonTip();
             notifyIcon.MouseClick += new System.Windows.Forms.MouseEventHandler(notifyIcon_MouseClick);

             //设置菜单项
             MenuItem setting1 = new MenuItem("setting1");
             MenuItem setting2 = new MenuItem("setting2");
             MenuItem setting = new MenuItem("setting", new MenuItem[]{setting1,setting2});

             //帮助选项
             MenuItem help = new MenuItem("help");

             //关于选项
             MenuItem about = new MenuItem("about");

             //退出菜单项
             MenuItem exit = new MenuItem("exit");
             exit.Click += new EventHandler(exit_Click);

             //关联托盘控件
             MenuItem[] childen = new MenuItem[] {setting,help,about,exit};
             notifyIcon.ContextMenu = new ContextMenu(childen);

             //窗体状态改变时候触发
             this.StateChanged += new EventHandler(SysTray_StateChanged);
         }

         /// <summary>
         /// 鼠标单击
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void notifyIcon_MouseClick(object sender, System.Windows.Forms.MouseEventArgs e)
         {
             //如果鼠标左键单击
             if (e.Button == MouseButtons.Left)
             {
                 if (this.Visibility == Visibility.Visible)
                 {
                     this.Visibility = Visibility.Hidden;
                 }
                 else
                 {
                     this.Visibility = Visibility.Visible;
                     this.Activate();
                 }
             }
         }

         /// <summary>
         /// 窗体状态改变时候触发
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void SysTray_StateChanged(object sender, EventArgs e)
         {
             if (this.WindowState == WindowState.Minimized)
             {
                 this.Visibility = Visibility.Hidden;
             }
         }          

         /// <summary>
         /// 退出选项
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void exit_Click(object sender, EventArgs e)
         {
             if (System.Windows.MessageBox.Show("sure to exit?",
                                                "application",
                                                 MessageBoxButton.YesNo,
                                                 MessageBoxImage.Question,
                                                 MessageBoxResult.No) == MessageBoxResult.Yes)
             {
                 System.Windows.Application.Current.Shutdown();
             }
         }
     }
 }