DnsServerSystemTrayApp added with testing

DnsServerSystemTrayApp/NotifyIconExtension.cs

@@ -0,0 +1,33 @@
+/*
+Technitium DNS Server
+Copyright (C) 2019  Shreyas Zare (shreyas@technitium.com)
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+using System.Reflection;
+using System.Windows.Forms;
+
+namespace DnsServerSystemTrayApp
+{
+    public static class NotifyIconExtension
+    {
+        public static void ShowContextMenu(this NotifyIcon notifyIcon)
+        {
+            MethodInfo methodInfo = typeof(NotifyIcon).GetMethod("ShowContextMenu", BindingFlags.Instance | BindingFlags.NonPublic);
+            methodInfo.Invoke(notifyIcon, null);
+        }
+    }
+}