06-系统操作/设置和屏蔽系统热键/热键/HOOK.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Reflection;
using System.IO;

namespace 设置和屏蔽系统热键
{
    class HOOK
    {
        #region 私有变量

        /// <summary>
        /// 键盘钩子句柄
        /// </summary>
        private IntPtr m_pKeyboardHook = IntPtr.Zero;

        /// <summary>
        /// 钩子委托声明
        /// </summary>
        /// <param name="nCode"></param>
        /// <param name="wParam"></param>
        /// <param name="lParam"></param>
        /// <returns></returns>
        public delegate int HookProc(int nCode, Int32 wParam, IntPtr lParam);

        /// <summary>
        /// 键盘钩子委托实例
        /// </summary>
        private HookProc m_KeyboardHookProcedure;

        /// <summary>
        /// 底层的钩子变量
        /// </summary>
        public const int idHook = 13;

        /// <summary>
        /// 安装钩子
        /// </summary>
        /// <param name="idHook"></param>
        /// <param name="lpfn"></param>
        /// <param name="hInstance"></param>
        /// <param name="threadId"></param>
        /// <returns></returns>
        [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)]
        public static extern IntPtr SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr pInstance, int threadId);

        /// <summary>
        /// 卸载钩子
        /// </summary>
        /// <param name="idHook"></param>
        /// <returns></returns>
        [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)]
        public static extern bool UnhookWindowsHookEx(IntPtr pHookHandle);

        /// <summary>