This is the first revision of my changes

KVMKeyboardHook.cs

@@ -0,0 +1,57 @@
+/*
+
+credit to https://github.com/shanselman/babysmash
+
+Copyright (c) 2015 Scott Hanselman
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+	http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+*/
+
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+
+namespace MeshCentralRouter
+{
+    internal class KVMKeyboardHook
+    {
+        #region Delegates
+
+        public delegate IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr lParam);
+
+        #endregion
+
+        private const int WH_KEYBOARD_LL = 13;
+        private const int WM_KEYDOWN = 0x0100;
+
+        public static IntPtr SetHook(LowLevelKeyboardProc proc)
+        {
+            using (Process curProcess = Process.GetCurrentProcess())
+            using (ProcessModule curModule = curProcess.MainModule)
+            {
+                return SetWindowsHookEx(WH_KEYBOARD_LL, proc, GetModuleHandle(curModule.ModuleName), 0);
+            }
+        }
+
+        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
+        private static extern IntPtr SetWindowsHookEx(int idHook, LowLevelKeyboardProc lpfn, IntPtr hMod, uint dwThreadId);
+
+        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        public static extern bool UnhookWindowsHookEx(IntPtr hhk);
+
+        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
+        public static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, IntPtr lParam);
+
+        [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
+        private static extern IntPtr GetModuleHandle(string lpModuleName);
+    }
+}