Migrated the project to dotnet core 3.0

src/NotifyIconWpf/Interop/MouseEvent.cs

@@ -0,0 +1,54 @@
+namespace Hardcodet.Wpf.TaskbarNotification.Interop
+{
+    /// <summary>
+    /// Event flags for clicked events.
+    /// </summary>
+    public enum MouseEvent
+    {
+        /// <summary>
+        /// The mouse was moved withing the
+        /// taskbar icon's area.
+        /// </summary>
+        MouseMove,
+
+        /// <summary>
+        /// The right mouse button was clicked.
+        /// </summary>
+        IconRightMouseDown,
+
+        /// <summary>
+        /// The left mouse button was clicked.
+        /// </summary>
+        IconLeftMouseDown,
+
+        /// <summary>
+        /// The right mouse button was released.
+        /// </summary>
+        IconRightMouseUp,
+
+        /// <summary>
+        /// The left mouse button was released.
+        /// </summary>
+        IconLeftMouseUp,
+
+        /// <summary>
+        /// The middle mouse button was clicked.
+        /// </summary>
+        IconMiddleMouseDown,
+
+        /// <summary>
+        /// The middle mouse button was released.
+        /// </summary>
+        IconMiddleMouseUp,
+
+        /// <summary>
+        /// The taskbar icon was double clicked.
+        /// </summary>
+        IconDoubleClick,
+
+        /// <summary>
+        /// The balloon tip was clicked.
+        /// </summary>
+        BalloonToolTipClicked
+    }
+}