使用系统托盘，可以为用户提供一个简便快捷的操作习惯。

wpf中增加系统托盘图标有2种

第一种，使用Hardcodet.NotifyIcon.Wpf开源组件

1.建立一个wpf程序

2.安装Hardcodet.NotifyIcon.Wpf

3.增加图片

图片选择资源，否则获取不到路径

4.界面前台代码

其中此处可以重写MenuItem的样式，以及其他事件

<Window x:Class="WpfApp3.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfApp3"
        mc:Ignorable="d"
        xmlns:tb="http://www.hardcodet.net/taskbar"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <tb:TaskbarIcon x:Name="NotifyIcon"
                        IconSource="/img/logo.ico"
                        ToolTipText="故里2130" TrayMouseDoubleClick="NotifyIco_MouseDoubleClick"
                         >
            <tb:TaskbarIcon.ContextMenu>
                <ContextMenu>
                    <TextBlock Text="菜单1" />
                    <MenuItem Header="菜单2" Background="Red"
                              CommandParameter="{Binding}">
                        <MenuItem.Icon>
                            <Image Width="16"
                                   Height="16"
                                   Source="/img/logo.ico" />
                        </MenuItem.Icon>
                    </MenuItem>
                    <Separator />
                    <MenuItem Header="菜单3"
                              CommandParameter="{Binding}">
                        <MenuItem.Icon>
                            <Image Width="16"
                                   Height="16"
                                   Source="/img/logo.ico" />
                        </MenuItem.Icon>
                    </MenuItem>
                </ContextMenu>
            </tb:TaskbarIcon.ContextMenu>
        </tb:TaskbarIcon>
        <TextBlock>123</TextBlock>
    </Grid>
</Window>

5.界面后台代码

  private void NotifyIco_MouseDoubleClick(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("123");
        }

 6.效果

第二种，使用winform中带的控件，NotifyIcon。

1.同样建立一个程序，但是图标要修改成嵌入的资源，否则获取不到路径

2. 因为NotifyIcon是winform中的控件，所以只能在cs文件中增加代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Forms;
using System.Drawing;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfApp3
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        /// <summary>
        /// 任务图标
        /// </summary>
        NotifyIcon notifyIcon = null;

        public MainWindow()
        {
            InitializeComponent();
            SetIcon();
        }

        /// <summary>
        /// 设置图标
        /// </summary>
        private void SetIcon()
        {
            this.notifyIcon = new NotifyIcon();
            this.notifyIcon.BalloonTipText = "故里2130"; //设置程序启动时显示的文本
            this.notifyIcon.Text = "故里2130";//最小化到托盘时，鼠标点击时显示的文本
            this.notifyIcon.Icon = new System.Drawing.Icon(AppDomain.CurrentDomain.BaseDirectory + @"/img/logo.ico");//程序图标
            this.notifyIcon.Visible = true;
            notifyIcon.MouseDoubleClick += NotifyIcon_MouseDoubleClick; ;

            ContextMenuStrip cms = new ContextMenuStrip();

            //关联 NotifyIcon 和 ContextMenuStrip
            notifyIcon.ContextMenuStrip = cms;

            System.Windows.Forms.ToolStripMenuItem exitMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            exitMenuItem.Text = "退出";
            exitMenuItem.Click += ExitMenuItem_Click; ;

            System.Windows.Forms.ToolStripMenuItem hideMenumItem = new System.Windows.Forms.ToolStripMenuItem();
            hideMenumItem.Text = "隐藏";
            hideMenumItem.Click += HideMenumItem_Click; ;

            System.Windows.Forms.ToolStripMenuItem showMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            showMenuItem.Text = "显示";
            showMenuItem.Click += ShowMenuItem_Click; ;

            cms.Items.Add(exitMenuItem);
            cms.Items.Add(hideMenumItem);
            cms.Items.Add(showMenuItem);

            this.notifyIcon.ShowBalloonTip(1000);
        }

        private void NotifyIcon_MouseDoubleClick(object? sender, System.Windows.Forms.MouseEventArgs e)
        {
            System.Windows.MessageBox.Show("123");
        }

        private void ShowMenuItem_Click(object? sender, EventArgs e)
        {
            System.Windows.MessageBox.Show("显示");
        }

        private void HideMenumItem_Click(object? sender, EventArgs e)
        {
            System.Windows.MessageBox.Show("隐藏");
        }

        private void ExitMenuItem_Click(object? sender, EventArgs e)
        {
            System.Windows.MessageBox.Show("退出");
        }

        private void Window_Closed(object sender, EventArgs e)
        {
            notifyIcon.Dispose();       //退出释放图标
        }
    }
}

3.效果

2种方式，任意一种都可以，第一种更加的灵活，方便一些。

来源：wpf增加系统托盘图标_wpf 系统托盘_故里2130的博客-CSDN博客