public class SetHook { public class HookTypes { /// <summary> /// 钩子类型 /// </summary> public enum HookType { WH_JOURNALRECORD = 0,//对寄送至消息队列的输入消息进行记录 WH_GETMESSAGE = 3,//对寄送至消息队列的消息进行监视 WH_JOURNALPLAYBACK = 1,//对此前由WH_JOURNALRECORD 挂钩处理过程纪录的消息进行寄送 WH_CALLWNDPROC = 4,//在系统将消息发送至目标窗口处理过程之前，对该消息进行监视 WH_CBT = 5,//接受对CBT应用程序有用的消息 WH_MSGFILTER = -1,//监视由对话框、消息框、菜单条、或滚动条中的输入事件引发的消息 WH_SYSMSGFILTER = 6,//监视由对话框,消息框,菜单条,滚动条中的输入事件引发的消息 //8 WH_DEBUG = 9,//对其他钩子处理过程进行调试 WH_SHELL = 10,//接受对外壳应用程序有用的通知 WH_FOREGROUNDIDLE = 11,//当应用程序的前台线程即将进入空闲状态时被调用,它有助于在空闲时间内执行低优先级的任务 #region 鼠标和键盘事件 /// <summary> /// 对击键消息进行监视 /// </summary> WH_KEYBOARD = 2, /// <summary> /// 只能在windows NT中被安装,用来对底层的键盘输入事件进行监视 /// </summary> WH_KEYBOARD_LL = 13, /// <summary> /// 对鼠标消息进行监视 /// </summary> WH_MOUSE = 7, /// <summary> /// 只能在windows NT中被安装,用来对底层鼠标事件进行监视 /// </summary> WH_MOUSE_LL = 14, #endregion } } public abstract class Hooks : HookTypes { public delegate int HookProc(int nCode, int wParam, IntPtr IParam); /// <summary> /// 安装钩子 /// </summary> /// <param name="idHook">钩子类型，即它处理的消息类型</param> /// <param name="lpfn"> 钩子函数地址</param> /// <param name="hInstance">应用程序实例的句柄。标识包含lpfn所指的子程的DLL</param> /// <param name="threadId">安装钩子后想监控的线程的ID号, 如果为0，钩子子程与所有的线程关联，即为全局钩子</param> /// <returns>返回参数为钩子句柄,失败为NULL</returns> [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)] public static extern int SetWindowsHookEx(HookType hooktype, HookProc lpfn, IntPtr hInstance, int threadId); /// <summary> /// 卸载钩子 /// </summary> /// <param name="idHook">要卸载的钩子句柄</param> /// <returns></returns> [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)] public static extern bool UnhookWindowsHookEx(int idHook); /// <summary> /// 继续下一个钩子 /// </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> /// 获取当前线程编号 /// </summary> /// <returns></returns> [DllImport("kernel32")] public static extern int GetCurrentThreadId(); #region /// <summary> /// 委托对象 /// </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> /// 线程钩子 /// </summary> /// <returns></returns> public override int SetWindowsHookEx() { //int theadId = System.Threading.Thread.CurrentThread.ManagedThreadId(); 应对GetCurrentThreadId()的过时 int hookId = 0; object hookId_ = SetWindowsHookEx(this.hooktyp, this.hookproc, IntPtr.Zero, GetCurrentThreadId()); if (hookId_ != null) { hookId = (int)hookId_; } return hookId; } 　　　　//系统钩子和这差不多,安装钩子的时候后两个参数不一样 } }