Как свернуть окно в трей

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
 
namespace DemoGames
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        System.Windows.Forms.NotifyIcon ni = new System.Windows.Forms.NotifyIcon();
        public MainWindow()
        {
            InitializeComponent();
            ni.Icon = new System.Drawing.Icon("/DemoGames;component/Images/1.ico");
        }
 
        private void button1_Click_1(object sender, RoutedEventArgs e)
        {
            ni.Visible = true;
            ni.DoubleClick += (sndr, args) =>
            {
                this.Show();
                this.WindowState = WindowState.Normal;
            };
            this.Hide();
        }
    }
 
}

ni.Icon = new System.Drawing.Icon("/DemoGames;component/Images/1.ico");

ni.Icon = Properties.Resources.inline;

System.Windows.Forms.NotifyIcon ni = new System.Windows.Forms.NotifyIcon();

public MainWindow()
{
   InitializeComponent();
 
   #region Tray
 
   Forms.NotifyIcon ni = new Forms.NotifyIcon();
   ni.Icon = new System.Drawing.Icon("icon_m.ico");
   ni.Visible = true;
   ni.Click += delegate (object sender, EventArgs args)
   {
      this.Show();
      this.WindowState = WindowState.Normal;
   };
 
   #endregion
}
 
protected override void OnStateChanged(EventArgs e)
{
   if (WindowState == WindowState.Minimized)
      this.Hide();
 
   base.OnStateChanged(e);
}