今天弄了一下c#的鉤子，沒弄好,但是鉤子安裝成功,可以捕獲鍵盤事件。包括系統鉤子和線程鉤子,或者叫全局鉤子和私有鉤子。系統鉤子需要一個單獨的DLL,這個地方耽誤了不少時間,網上有說可以不用單獨DLL的。

　　現在開始鐵代碼,代碼參照了紅黑聯盟中的一篇文章。

public class SetHook
??? {
??????? public class HookTypes
??????? {
??????????? /// <summary>
??????????? /// 鉤子類型
??????????? /// </summary>
??????????? public enum HookType
??????????? {
??????????????? WH_JOURNALRECORD = 0,//對寄送至消息隊列的輸入消息進行記錄
??????????????? WH_GETMESSAGE = 3,//對寄送至消息隊列的消息進行監視

??????????????? WH_JOURNALPLAYBACK = 1,//對此前由WH_JOURNALRECORD 掛鉤處理過程紀錄的消息進行寄送
??????????????? WH_CALLWNDPROC = 4,//在系統將消息發送至目標窗口處理過程之前，對該消息進行監視
??????????????? WH_CBT = 5,//接受對CBT應用程序有用的消息

??????????????? WH_MSGFILTER = -1,//監視由對話框、消息框、菜單條、或滾動條中的輸入事件引發的消息
??????????????? WH_SYSMSGFILTER = 6,//監視由對話框,消息框,菜單條,滾動條中的輸入事件引發的消息

??????????????? //8
??????????????? WH_DEBUG = 9,//對其他鉤子處理過程進行調試
??????????????? WH_SHELL = 10,//接受對外殼應用程序有用的通知
??????????????? WH_FOREGROUNDIDLE = 11,//當應用程序的前臺線程即將進入空閑狀態時被調用,它有助于在空閑時間內執行低優先級的任務
??????????????? #region 鼠標和鍵盤事件
??????????????? /// <summary>
??????????????? /// 對擊鍵消息進行監視
??????????????? /// </summary>
??????????????? WH_KEYBOARD = 2,
??????????????? /// <summary>
??????????????? /// 只能在windows NT中被安裝,用來對底層的鍵盤輸入事件進行監視
??????????????? /// </summary>
??????????????? WH_KEYBOARD_LL = 13,
??????????????? /// <summary>
??????????????? /// 對鼠標消息進行監視
??????????????? /// </summary>
??????????????? WH_MOUSE = 7,
??????????????? /// <summary>
??????????????? /// 只能在windows NT中被安裝,用來對底層鼠標事件進行監視
??????????????? /// </summary>
??????????????? WH_MOUSE_LL = 14,
??????????????? #endregion
??????????? }
??????? }
??????? public abstract class Hooks : HookTypes
??????? {
??????????? public delegate int HookProc(int nCode, int wParam, IntPtr IParam);
??????????? /// <summary>
??????????? /// 安裝鉤子
??????????? /// </summary>
??????????? /// <param name="idHook">鉤子類型，即它處理的消息類型</param>
??????????? /// <param name="lpfn"> 鉤子函數地址</param>
??????????? /// <param name="hInstance">應用程序實例的句柄。標識包含lpfn所指的子程的DLL</param>
??????????? /// <param name="threadId">安裝鉤子后想監控的線程的ID號, 如果為0，鉤子子程與所有的線程關聯，即為全局鉤子</param>
??????????? /// <returns>返回參數為鉤子句柄,失敗為NULL</returns>
??????????? [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)]
??????????? public static extern int SetWindowsHookEx(HookType hooktype, HookProc lpfn, IntPtr hInstance, int threadId);
??????????? /// <summary>
??????????? /// 卸載鉤子
??????????? /// </summary>
??????????? /// <param name="idHook">要卸載的鉤子句柄</param>
??????????? /// <returns></returns>
??????????? [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)]
??????????? public static extern bool UnhookWindowsHookEx(int idHook);
??????????? /// <summary>
??????????? /// 繼續下一個鉤子
??????????? /// </summary>
??????????? /// <param name="idHook"></param>
??????????? /// <param name="nCode"></param>
??????????? /// <param name="wParam"></param>
??????????? /// <param name="IParam"></param>
??????????? /// <returns></returns>
??????????? [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)]
??????????? public static extern int CallNextHookEx(int idHook, int nCode, int wParam, IntPtr IParam);
??????????? /// <summary>
??????????? /// 獲取當前線程編號
??????????? /// </summary>
??????????? /// <returns></returns>
??????????? [DllImport("kernel32")]
??????????? public static extern int GetCurrentThreadId();

??????????? #region
??????????? /// <summary>
??????????? /// 委托對象???

/// </summary>
??????????? public HookProc proc;
??????????? public abstract int SetWindowsHookEx();

??????????? #endregion
??????? }
??????? public class AddHook : Hooks
??????? {
??????????? HookType hooktyp;
??????????? HookProc hookproc;
??????????? public AddHook(HookType _hooktype, HookProc _hookproc)
??????????? {
??????????????? this.hooktyp = _hooktype;
??????????????? this.hookproc = _hookproc;
??????????? }
??????????? public int AddPrivateHook()
??????????? {
??????????????? return SetWindowsHookEx();
??????????? }
??????????? /// <summary>
??????????? /// 線程鉤子
??????????? /// </summary>
??????????? /// <returns></returns>
??????????? public override int SetWindowsHookEx()
??????????? {
??????????????? //int theadId = System.Threading.Thread.CurrentThread.ManagedThreadId(); 應對GetCurrentThreadId()的過時
??????????????? int hookId = 0;
??????????????? object hookId_ = SetWindowsHookEx(this.hooktyp, this.hookproc, IntPtr.Zero, GetCurrentThreadId());
??????????????? if (hookId_ != null)
??????????????? {
??????????????????? hookId = (int)hookId_;
??????????????? }
??????????????? return hookId;
??????????? }

　　　　//系統鉤子和這差不多,安裝鉤子的時候后兩個參數不一樣
??????? }
??? }

?? 調用我新建了一個類，方便調用線程或者系統鉤子,這里就不貼了

?? 望提出寶貴建議

轉載于:https://www.cnblogs.com/zzjjgg/archive/2011/04/10/2011800.html

總結

以上是生活随笔為你收集整理的c# 钩子学习笔记的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。