Wpf程序显示在任务栏

using System;

using System.Collections.Generic;

using System.Drawing;

using System.IO;

using System.Linq;

using System.Reflection;

using System.Text;

using System.Threading.Tasks;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Forms;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

namespace Demo

{

    /// <summary>

    /// Interaction logic for MainWindow.xaml

    /// </summary>

    public partial class MainWindow : Window

    {

        private NotifyIcon TrayIcon;

        WindowState ws;

        WindowState wsl;

        private System.Windows.Forms.ContextMenu notifyiconMnu;

        public MainWindow()

        {

            InitializeComponent();

            Initializenotifyicon();

            //保证窗体显示在上方。

            wsl = WindowState;

        }

        private void OnNotifyIconDoubleClick(object sender, EventArgs e)

        {

            this.Show();

            WindowState = wsl;

        }

        private void Window_StateChanged(object sender, EventArgs e)

        {

            ws = WindowState;

            if (ws == WindowState.Minimized)

            {

                this.Hide();

            }

        }

        public void TopAllmost(object sender, System.EventArgs e)

        {

            try

            {

                System.Windows.Forms.MenuItem item = (System.Windows.Forms.MenuItem)sender;

                bool check = item.Checked;

                item.Checked = !check;

                this.Topmost = item.Checked;

            }

            catch

            {

            }

        }

        public void ExitSelect(object sender, System.EventArgs e)

        {

            TrayIcon.Visible = false;

            this.Close();

        }

        private void Initializenotifyicon()

        {

            Assembly assem = Assembly.GetExecutingAssembly();

            Stream stream = assem.GetManifestResourceStream(

             "Tray.ico");

            TrayIcon = new NotifyIcon();

            TrayIcon.Icon = new System.Drawing.Icon("Tray.ico");//程序图标

            this.TrayIcon.BalloonTipText = "Hello, 文件监视器"; //设置程序启动时显示的文本

            TrayIcon.Text = "MutiMenu " + "Copyright: Frank Zhao";

            TrayIcon.Visible = true;

            TrayIcon.MouseDoubleClick += OnNotifyIconDoubleClick;

            this.TrayIcon.ShowBalloonTip(1000);

            //  TrayIcon.Click += new System.EventHandler(this.click);

            //tray menu

            System.Windows.Forms.MenuItem[] mnuItms = new System.Windows.Forms.MenuItem[5];

            mnuItms[0] = new System.Windows.Forms.MenuItem();

            mnuItms[0].Text = "Aways Top";

            mnuItms[0].Click += new System.EventHandler(this.TopAllmost);

            mnuItms[0].Checked = true;

            mnuItms[1] = new System.Windows.Forms.MenuItem("-");

            mnuItms[2] = new System.Windows.Forms.MenuItem();

            mnuItms[2].Text = "Settings...";

          //  mnuItms[2].Click += new System.EventHandler(this.Settings);

            mnuItms[3] = new System.Windows.Forms.MenuItem("-");

            mnuItms[4] = new System.Windows.Forms.MenuItem();

            mnuItms[4].Text = "Exit";

            mnuItms[4].Click += new System.EventHandler(this.ExitSelect);

            mnuItms[4].DefaultItem = true;

            notifyiconMnu = new System.Windows.Forms.ContextMenu(mnuItms);

            TrayIcon.ContextMenu = notifyiconMnu;

        }

    }

}