Initial commit

WinHook.cs

@@ -0,0 +1,39 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace Common.Native
+{
+    public class WinHook
+    {
+        public enum HookType
+        {
+            WH_JOURNALRECORD = 0,
+            WH_JOURNALPLAYBACK = 1,
+            WH_KEYBOARD = 2,
+            WH_GETMESSAGE = 3,
+            WH_CALLWNDPROC = 4,
+            WH_CBT = 5,
+            WH_SYSMSGFILTER = 6,
+            WH_MOUSE = 7,
+            WH_HARDWARE = 8,
+            WH_DEBUG = 9,
+            WH_SHELL = 10,
+            WH_FOREGROUNDIDLE = 11,
+            WH_CALLWNDPROCRET = 12,
+            WH_KEYBOARD_LL = 13,
+            WH_MOUSE_LL = 14
+        }
+
+        public delegate IntPtr HookProc(int code, IntPtr wParam, IntPtr lParam);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern IntPtr SetWindowsHookEx(HookType hookType, HookProc lpfn, IntPtr hMod, uint dwThreadId);
+
+        [DllImport("user32.dll")]
+        public static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, IntPtr lParam);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        public static extern bool UnhookWindowsHookEx(IntPtr hhk);
+    }
+}