监控全局监控鼠标键盘代码,C#代码库,德仔网

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【C#】监控全局监控鼠标键盘
作者: / 发布于2018/1/29/ 268
监控全局监控鼠标键盘
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using System.Reflection;


namespace plumemonitoring
{
    /// <summary>
    /// 键盘钩子
    /// [以下代码来自某网友，并由小序改造加强]
    /// </summary>
    class KeyboardHook
    {
        public event KeyEventHandler KeyDownEvent;
        public event KeyPressEventHandler KeyPressEvent;
        public event KeyEventHandler KeyUpEvent;
        public event MouseEventHandler MouseDownDouble;
        public event MouseEventHandler MouseDown;
        public event MouseEventHandler MouseDownRight;
        public event MouseEventHandler Mousemov;
        public delegate int HookProc(int nCode, Int32 wParam, IntPtr lParam);
        static int hKeyboardHook = 0; //声明键盘钩子处理的初始值
        static int hMouseHook=0;//申明鼠标钩子处理的初始值
        //值在Microsoft SDK的Winuser.h里查询
        public const int WH_KEYBOARD_LL = 13;   //线程键盘钩子监听鼠标消息设为2
，全局键盘监听鼠标消息设为13
        HookProc KeyboardHookProcedure; //声明KeyboardHookProcedure作为HookProc
类型
        HookProc MouseHookProceduremz; //声明MouseHookProcedure作为HookProc类型
        //键盘结构
        [StructLayout(LayoutKind.Sequential)]
        public class KeyboardHookStruct
        {
            public int vkCode;  //定一个虚拟键码。该代码必须有一个价值的范围1至
254
            public int scanCode; // 指定的硬件扫描码的关键
            public int flags;  // 键标志
            public int time; // 指定的时间戳记的这个讯息
            public int dwExtraInfo; // 指定额外信息相关的信息
        }
        //使用此功能，安装了一个钩子
        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention =
CallingConvention.StdCall)]
        public static extern int SetWindowsHookEx(int idHook, HookProc lpfn,
IntPtr hInstance, int threadId);


        //调用此函数卸载钩子
        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention =
CallingConvention.StdCall)]
        public static extern bool UnhookWindowsHookEx(int idHook);


        //使用此功能，通过信息钩子继续下一个钩子
        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention =
CallingConvention.StdCall)]
        public static extern int CallNextHookEx(int idHook, int nCode, Int32
wParam, IntPtr lParam);

        // 取得当前线程编号（线程钩子需要用到）
        [DllImport("kernel32.dll")]
        static extern int GetCurrentThreadId();

        //使用WINDOWS API函数代替获取当前实例的函数,防止钩子失效
        [DllImport("kernel32.dll")]
        public static extern IntPtr GetModuleHandle(string name);

        public void Start()
        {
            //安装鼠标钩子
            if (hMouseHook == 0) 
            {
              MouseHookProceduremz= new HookProc(MouseHookProcedure);
              hMouseHook = SetWindowsHookEx(14, MouseHookProceduremz,
Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]), 0);
              if (hMouseHook == 0)
              {
                  Stopmouse();
                  MessageBox.Show("安装鼠标钩子失败");
              }
            }
            // 安装键盘钩子
            if (hKeyboardHook == 0)
            {
                KeyboardHookProcedure = new HookProc(KeyboardHookProc);
                hKeyboardHook = SetWindowsHookEx(WH_KEYBOARD_LL,
KeyboardHookProcedure, GetModuleHandle
(System.Diagnostics.Process.GetCurrentProcess().MainModule.ModuleName), 0);
               // hKeyboardHook = SetWindowsHookEx(WH_KEYBOARD_LL,
KeyboardHookProcedure, Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly
().GetModules()[0]), 0);
                //键盘线程钩子
               // SetWindowsHookEx( 2,KeyboardHookProcedure, IntPtr.Zero,
GetCurrentThreadId());//指定要监听的线程idGetCurrentThreadId(),
                //键盘全局钩子,需要引用空间(using System.Reflection;) 
                //关于SetWindowsHookEx (int idHook, HookProc lpfn, IntPtr
hInstance, int threadId)函数将钩子加入到钩子链表中，说明一下四个参数：
                //idHook 钩子类型，即确定钩子监听何种消息，上面的代码中设为2，
即监听键盘消息并且是线程钩子，如果是全局钩子监听键盘消息应设为13，
                //线程钩子监听鼠标消息设为7，全局钩子监听鼠标消息设为14。lpfn
钩子子程的地址指针。如果dwThreadId参数为0 或是一个由别的进程创建的
                //线程的标识，lpfn必须指向DLL中的钩子子程。 除此以外，lpfn可以
指向当前进程的一段钩子子程代码。钩子函数的入口地址，当钩子钩到任何
                //消息后便调用这个函数。hInstance应用程序实例的句柄。标识包含
lpfn所指的子程的DLL。如果threadId 标识当前进程创建的一个线程，而且子
                //程代码位于当前进程，hInstance必须为NULL。可以很简单的设定其为
本应用程序的实例句柄。threadId 与安装的钩子子程相关联的线程的标识符
                //如果为0，钩子子程与所有的线程关联，即为全局钩子
                //如果SetWindowsHookEx失败
                if (hKeyboardHook == 0)
                {
                    Stop();
                    MessageBox.Show("安装键盘钩子失败");
                }
            }
        }
        private void Stopmouse()
        {
            bool retKeyboard = true;
            if (hMouseHook != 0)
            {
                retKeyboard = UnhookWindowsHookEx(hMouseHook);
                hMouseHook = 0;
            }
            if (!(retKeyboard)) MessageBox.Show("卸载鼠标钩子失败");
        }
        #region 鼠标钩子结构体
        //声明一个Point的封送类型 
        [StructLayout(LayoutKind.Sequential)]
        public struct POINT
        {
            public int x;
            public int y;
        }
        //声明鼠标钩子的封送结构类型 
        [StructLayout(LayoutKind.Sequential)]
        public struct MouseHookStruct
        {
            public POINT pt;
            public int hWnd;
            public int wHitTestCode;
            public int dwExtraInfo;
        }
        //定义鼠标常熟
        private const int WM_MOUSEMOVE = 0x200;//鼠标移动 512（int）
        private const int WM_LBUTTONDOWN = 0x201;//鼠标左键 513（int）
        private const int WM_RBUTTONDOWN = 0x204;//鼠标右键 516（int）
        private const int WM_MBUTTONDOWN = 0x207;//鼠标中健 519（int）
        private const int WM_LBUTTONUP = 0x202;//左键弹起 514（int）
        private const int WM_RBUTTONUP = 0x205;//右键弹起 517（int）
        private const int WM_MBUTTONUP = 0x208;//中健弹起 520（int）
        private const int WM_LBUTTONDBLCLK = 0x203;//双击左键 515（int）
        private const int WM_RBUTTONDBLCLK = 0x206;//双击右键 518（int）
        private const int WM_MBUTTONDBLCLK = 0x209;//双击中健 521（int）
           #endregion
        private int MouseHookProcedure(int nCode, int wParam, IntPtr lParam)
        {
            if ((nCode >= 0) && (MouseDown != null || MouseDownDouble != null
|| Mousemov != null||MouseDownRight!=null))
            {
                MouseButtons button = MouseButtons.None;
                int clickCount = 0;
                switch (wParam)
                {
                    case WM_LBUTTONDOWN:
                        button = MouseButtons.Left;
                        clickCount = 1;
                        break;
                    case WM_LBUTTONUP:
                        button = MouseButtons.Left;
                        clickCount = 1;
                        break;
                    case WM_LBUTTONDBLCLK:
                        button = MouseButtons.Left;
                        clickCount = 2;
                        break;
                    case WM_RBUTTONDOWN:
                        button = MouseButtons.Right;
                        clickCount = 1;
                        break;
                    case WM_RBUTTONUP:
                        button = MouseButtons.Right;
                        clickCount = 1;
                        break;
                    case WM_RBUTTONDBLCLK:
                        button = MouseButtons.Right;
                        clickCount = 2;
                        break;
                }
                MouseHookStruct MyMouseHookStruct = (MouseHookStruct)
Marshal.PtrToStructure(lParam, typeof(MouseHookStruct));
                MouseEventArgs e = new MouseEventArgs(button, clickCount,
MyMouseHookStruct.pt.x, MyMouseHookStruct.pt.y, 0);
                // raise KeyDown
                if (MouseDown != null && wParam == WM_LBUTTONDOWN)//单击事件
                {
                    MouseDown(this, e);
                }
                if (this.MouseDownDouble != null && wParam ==
WM_LBUTTONDBLCLK)//双击事件
                {
                    MouseDownDouble(this, e);
                }
                if (this.Mousemov != null && wParam == WM_LBUTTONDOWN && wParam
== WM_MOUSEMOVE) //拖动事件
                {
                    Mousemov(this, e);
                }
                if (this.MouseDownRight != null && wParam == WM_RBUTTONDOWN) 
                {
                    MouseDownRight(this, e);
                }
            }

            //如果返回1，则结束消息，这个消息到此为止，不再传递。
            //如果返回0或调用CallNextHookEx函数则消息出了这个钩子继续往下传递，
也就是传给消息真正的接受者 
            return CallNextHookEx(hKeyboardHook, nCode, wParam, lParam);
        }
        public void Stop()
        {
            bool retKeyboard = true;
            if (hKeyboardHook != 0)
            {
                retKeyboard = UnhookWindowsHookEx(hKeyboardHook);
                hKeyboardHook = 0;
            }
           if (!(retKeyboard))MessageBox.Show("卸载键盘钩子失败");
        }
        //ToAscii职能的转换指定的虚拟键码和键盘状态的相应字符或字符
        [DllImport("user32")]
        public static extern int ToAscii(int uVirtKey, //[in] 指定虚拟关键代码
进行翻译。
                                         int uScanCode, // [in] 指定的硬件扫描
码的关键须翻译成英文。高阶位的这个值设定的关键，如果是（不压）
                                         byte[] lpbKeyState, // [in] 指针，以
256字节数组，包含当前键盘的状态。每个元素（字节）的数组包含状态的一个关键。如果
高阶位的字节是一套，关键是下跌（按下）。在低比特，如果设置表明，关键是对切换。
在此功能，只有肘位的CAPS LOCK键是相关的。在切换状态的NUM个锁和滚动锁定键被忽略
。
                                         byte[] lpwTransKey, // [out] 指针的缓
冲区收到翻译字符或字符。
                                         int fuState); // [in] Specifies
whether a menu is active. This parameter must be 1 if a menu is active, or 0
otherwise.

        //获取按键的状态
        [DllImport("user32")]
        public static extern int GetKeyboardState(byte[] pbKeyState);


        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention =
CallingConvention.StdCall)]
        private static extern short GetKeyState(int vKey);

        private const int WM_KEYDOWN = 0x100;//KEYDOWN
        private const int WM_KEYUP = 0x101;//KEYUP
        private const int WM_SYSKEYDOWN = 0x104;//SYSKEYDOWN
        private const int WM_SYSKEYUP = 0x105;//SYSKEYUP

        private int KeyboardHookProc(int nCode, Int32 wParam, IntPtr lParam)
        {
            // 侦听键盘事件
            if ((nCode >= 0) && (KeyDownEvent != null || KeyUpEvent != null ||
KeyPressEvent != null))
            {
                KeyboardHookStruct MyKeyboardHookStruct = (KeyboardHookStruct)
Marshal.PtrToStructure(lParam, typeof(KeyboardHookStruct));
                // raise KeyDown
                if (KeyDownEvent != null && (wParam == WM_KEYDOWN || wParam ==
WM_SYSKEYDOWN))
                {
                    Keys keyData = (Keys)MyKeyboardHookStruct.vkCode;
                    KeyEventArgs e = new KeyEventArgs(keyData);
                    KeyDownEvent(this, e);
                }

                //键盘按下
                if (KeyPressEvent != null && wParam == WM_KEYDOWN)
                {
                    byte[] keyState = new byte[256];
                    GetKeyboardState(keyState);

                    byte[] inBuffer = new byte[2];
                    if (ToAscii(MyKeyboardHookStruct.vkCode,
MyKeyboardHookStruct.scanCode, keyState, inBuffer, MyKeyboardHookStruct.flags)
== 1)
                    {
                        KeyPressEventArgs e = new KeyPressEventArgs((char)
inBuffer[0]);
                        KeyPressEvent(this, e);
                    }
                }

                // 键盘抬起
                if (KeyUpEvent != null && (wParam == WM_KEYUP || wParam ==
WM_SYSKEYUP))
                {
                    Keys keyData = (Keys)MyKeyboardHookStruct.vkCode;
                    KeyEventArgs e = new KeyEventArgs(keyData);
                    KeyUpEvent(this, e);
                }

            }
            //如果返回1，则结束消息，这个消息到此为止，不再传递。
            //如果返回0或调用CallNextHookEx函数则消息出了这个钩子继续往下传递，
也就是传给消息真正的接受者
            return CallNextHookEx(hKeyboardHook, nCode, wParam, lParam);
        }
        ~KeyboardHook()
        {
            Stop();
        }
    }
}

在winform load加载事件中掉用本类。
  private void Form1_Load(object sender, EventArgs e)
        {
            k_hook = new KeyboardHook();
            k_hook.KeyDownEvent += new KeyEventHandler(hook_KeyDown);//全局按键事件
            k_hook.MouseDown += k_hook_MouseDown;//全局点击事件
            k_hook.Start();//安装键盘钩子
        }
        void k_hook_MouseDown(object sender, MouseEventArgs e)
        {
            this.txtshow="鼠标激发";
        }
        private void hook_KeyDown(object sender, KeyEventArgs e)
        {

            //判断按下的键（Alt + A）
            if (e.KeyValue == (int)Keys.A && (int)Control.ModifierKeys == (int)Keys.Alt)
            {
                System.Windows.Forms.MessageBox.Show("按下了指定快捷键组合");
            }
        }
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