<Window x:Class="NotificationIconSample.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="NotificationIconSample" Height="300" Width="300"> <Grid> <Button Click="click">Click</Button> </Grid> </Window> //File:Window.xaml.cs namespace NotificationIconSample { using System; using System.Windows; using System.Windows.Forms; using System.Drawing; public partial class MainWindow : Window { NotifyIcon notifyIcon; public MainWindow() { InitializeComponent(); } void click(object sender, RoutedEventArgs e) { this.notifyIcon = new NotifyIcon(); this.notifyIcon.BalloonTipText = "Hello, NotifyIcon!"; this.notifyIcon.Text = "Hello, NotifyIcon!"; this.notifyIcon.Icon = new System.Drawing.Icon("NotifyIcon.ico"); this.notifyIcon.Visible = true; this.notifyIcon.ShowBalloonTip(1000); } } }