Migrated the project to dotnet core 3.0

src/Sample Project/Tutorials/05 - Balloons/BalloonSampleWindow.xaml.cs

@@ -0,0 +1,53 @@
+using System.Windows;
+using System.Windows.Controls.Primitives;
+
+namespace Samples.Tutorials.Balloons
+{
+    /// <summary>
+    /// Interaction logic for BalloonSampleWindow.xaml
+    /// </summary>
+    public partial class BalloonSampleWindow : Window
+    {
+        public BalloonSampleWindow()
+        {
+            InitializeComponent();
+        }
+
+        protected override void OnClosing(System.ComponentModel.CancelEventArgs e)
+        {
+            //clean up notifyicon (would otherwise stay open until application finishes)
+            MyNotifyIcon.Dispose();
+
+            base.OnClosing(e);
+        }
+
+
+        private void btnShowCustomBalloon_Click(object sender, RoutedEventArgs e)
+        {
+            FancyBalloon balloon = new FancyBalloon();
+            balloon.BalloonText = "Custom Balloon";
+
+            //show balloon and close it after 4 seconds
+            MyNotifyIcon.ShowCustomBalloon(balloon, PopupAnimation.Slide, 4000);
+        }
+
+        private void btnHideStandardBalloon_Click(object sender, RoutedEventArgs e)
+        {
+            MyNotifyIcon.HideBalloonTip();
+        }
+
+
+        private void btnShowStandardBalloon_Click(object sender, RoutedEventArgs e)
+        {
+            string title = "WPF NotifyIcon";
+            string text = "This is a standard balloon";
+
+            MyNotifyIcon.ShowBalloonTip(title, text, MyNotifyIcon.Icon);
+        }
+
+        private void btnCloseCustomBalloon_Click(object sender, RoutedEventArgs e)
+        {
+            MyNotifyIcon.CloseBalloon();
+        }
+    }
+}