WPF最小到系統托盤

讓WPF應用最小到系統托盤？可以調用System.Windows.Forms.NotifyIcon來實現，下面是示例代碼：

public partial class MainWindow : Window
    {
        private NotifyIcon notifyIcon;
        public MainWindow()
        {
            InitializeComponent();

            this.notifyIcon = new NotifyIcon();
            this.notifyIcon.BalloonTipText = "系統監控中... ...";
            this.notifyIcon.ShowBalloonTip(2000);
            this.notifyIcon.Text = "系統監控中... ...";
            this.notifyIcon.Icon = new System.Drawing.Icon(@"AppIcon.ico");
            this.notifyIcon.Visible = true;
            //打開菜單項
            System.Windows.Forms.MenuItem open = new System.Windows.Forms.MenuItem("Open");
            open.Click += new EventHandler(Show);
            //退出菜單項
            System.Windows.Forms.MenuItem exit = new System.Windows.Forms.MenuItem("Exit");
            exit.Click += new EventHandler(Close);
            //關聯托盤控件
            System.Windows.Forms.MenuItem[] childen = new System.Windows.Forms.MenuItem[] { open, exit };
            notifyIcon.ContextMenu = new System.Windows.Forms.ContextMenu(childen);

            this.notifyIcon.MouseDoubleClick += new System.Windows.Forms.MouseEventHandler((o, e) =>
            {
                if (e.Button == MouseButtons.Left) this.Show(o, e);
            });
        }

        private void Show(object sender, EventArgs e)
        {
            this.Visibility = System.Windows.Visibility.Visible;
            this.ShowInTaskbar = true;
            this.Activate();
        }

        private void Hide(object sender, EventArgs e)
        {
            this.ShowInTaskbar = false;
            this.Visibility = System.Windows.Visibility.Hidden;
        }

        private void Close(object sender, EventArgs e)
        {
            System.Windows.Application.Current.Shutdown();
        }
    }

運行時發現，程序一定要能找到ICON，否則會報錯，並且ICON還沒包含到程序中，需要一個額外的ICON來做托盤圖標。當然這個都是能解決的：

this.notifyIcon.Icon = new System.Drawing.Icon(@"AppIcon.ico");

將以上一句替換成下面內容，意思就是讀取程序圖標，來作為托盤圖標

this.notifyIcon.Icon = System.Drawing.Icon.ExtractAssociatedIcon(System.Windows.Forms.Application.ExecutablePath);

運行，搞定，這樣你的程序就不用拖着一個ICON文件當累贅了。