鼠标键盘钩子捕获（初版）

兴趣使然，想找到C#鼠标键盘钩子代码在网上查找资料发现C#鼠标钩子的资料不太完善，在实际操作过程中发现有些效果也不太理想，

所以自己进行了修改完善，当然，学识有限，还有很多地方需要完善，

欢迎指正！

这个项目不能直接启动，需要使用Ctrl+F5非调试启动或者直接启动bin文件下编译程序才不出错

注：这个只是学习参考，可别动坏脑筋

using System;

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

namespace autoInput.Support
{
    /// <summary>
    /// 键盘钩子
    /// [以下代码来自某网友，并由“Murphy丶悦”改造完善]
    /// [仅供参考学习，请勿进行非法操作]
    /// </summary>
    public 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);

        //引入系统的双击时间
        [DllImport("user32.dll")]
        public static extern int GetDoubleClickTime();

        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, IntPtrhInstance, 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;
        }
        //定义鼠标常数
        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）

        //对于鼠标双击的动作捕获，都是认为可以捕获WM_LBUTTONDBLCLK这个消息，通过该消息来设定是否为双击，
        //但实际挂在钩子后，Windows并不会直接捕获到WM_LBUTTONDBLCLK这个消息，而是两次WM_LBUTTONDOWN消息，
        //因此，如果要实现双击的捕获，可考虑计算两次点击的时间间隔，和系统的双击时间间隔进行比较，从而判定是否为双击。

        //在鼠标钩子中右键双击两次可以捕获到两次单击右键，
        //但是在这个类拿到消息并进行鼠标常数更改为双击后在窗口中只能显示出单击一次
        //另在各类资料中显示的中键鼠标常数全部无法捕获到
        #endregion
        //记录初始时间进行时间复位
        private static int InitialTime = 0;//对单击两次后时间复位，防止无限判定双击事件
        //上一次单击对应按键时间
        private static int LeftClickTime = 0;//上一次单击左键时间
        private static int RightClickTime = 0;//上一次单击右键时间
        private static int MiddleClickTime = 0;//上一次单击中键时间
        //上一次单击事件坐标
        private int lastX = 0;//上一次鼠标X轴位置
        private int lastY = 0;//上一次鼠标Y轴位置
        public int i = 0;
        private int MouseHookProcedure(int nCode, int wParam, IntPtr lParam)
        {
            int clickCount = 0;
            if ((nCode >= 0) && (MouseDown != null || MouseDownDouble != null || Mousemov != null || MouseDownRight != null))
            {
                MouseButtons button = MouseButtons.None;

                MouseHookStruct MyMouseHookStruct = (MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(MouseHookStruct));
                int X = MyMouseHookStruct.pt.x;//当前单击事件X轴坐标
                int Y = MyMouseHookStruct.pt.y;//当前单击事件Y轴坐标

                //进行时间比对；手动对鼠标按键命令更改
                if (wParam == WM_LBUTTONDOWN)//对单击左键进行判定
                    wParam = changeGorge(wParam, LeftClickTime, WM_LBUTTONDBLCLK, X, Y);
                if(wParam== WM_RBUTTONDOWN)//对单击右键进行判定
                    wParam= changeGorge(wParam, RightClickTime, WM_RBUTTONDBLCLK, X, Y);
                if (wParam == WM_MBUTTONDOWN)//对单击中键进行判定
                    wParam = changeGorge(wParam, MiddleClickTime, WM_MBUTTONDBLCLK, X, Y);

                switch (wParam)
                {
                    //左键按下
                    case WM_LBUTTONDOWN:
                        button = MouseButtons.Left;
                        clickCount = 1;
                        break;
                    //左键抬起
                    case WM_LBUTTONUP:
                        button = MouseButtons.Left;
                        clickCount = 1;
                        break;
                    //双击左键
                    case WM_LBUTTONDBLCLK:
                        button = MouseButtons.Left;
                        clickCount = 2;
                        break;
                    //中键按下
                    case WM_MBUTTONDOWN:
                        button = MouseButtons.Middle;
                        clickCount = 1;
                        break;
                    //中键抬起
                    case WM_MBUTTONUP:
                        button = MouseButtons.Middle;
                        clickCount = 1;
                        break;
                    //双击中键
                    case WM_MBUTTONDBLCLK:
                        button = MouseButtons.Middle;
                        clickCount = 2;
                        break;
                    //右键按下
                    case WM_RBUTTONDOWN:
                        button = MouseButtons.Right;
                        clickCount = 1;
                        break;
                    //右键抬起
                    case WM_RBUTTONUP:
                        button = MouseButtons.Right;
                        clickCount = 1;
                        break;
                    //双击右键
                    case WM_RBUTTONDBLCLK:
                        button = MouseButtons.Right;
                        clickCount = 2;
                        break;
                    case WM_MOUSEMOVE:
                        clickCount = 0;
                        break;
                }

                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)//右击事件
                {
                    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] Specifieswhether a menu is active. This parameter must be 1 if a menu is active, or 0otherwise.

        //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);
        }

        /// <summary>
        /// 对单击事件进行判定是否为双击事件并进行修改
        /// </summary>
        /// <param name="wParams">串口内的单击事件消息</param>
        /// <param name="lastClickTime">上一次单击事件事件</param>
        /// <param name="doubleClick">正确双击事件消息</param>
        /// <param name="X">上一次单击X轴坐标</param>
        /// <param name="Y">上一次单击Y轴坐标</param>
        /// <returns></returns>
        public int changeGorge(int wParam,int lastClickTime,int doubleClick,int X,int Y)
        {
            int deltaMs = GetDoubleClickTime() + lastClickTime;
            if (deltaMs >= dateTimeToInt(DateTime.Now) && lastX == X && lastY == Y)//在系统双击判定时间内同一坐标单击两次更改为双击事件
            {
                wParam = doubleClick;
                if (lastClickTime == LeftClickTime)
                    LeftClickTime = InitialTime;
                else if (lastClickTime == RightClickTime)
                    RightClickTime = InitialTime;
                else if (lastClickTime == MiddleClickTime)
                    MiddleClickTime = InitialTime;
            }
            else
            {
                if (lastClickTime == LeftClickTime)
                {
                    LeftClickTime = dateTimeToInt(DateTime.Now);
                    RightClickTime = InitialTime;
                    MiddleClickTime = InitialTime;
                }
                else if (lastClickTime == RightClickTime)
                {
                    RightClickTime = dateTimeToInt(DateTime.Now);
                    LeftClickTime = InitialTime;
                    MiddleClickTime = InitialTime;
                }
                else if (lastClickTime == MiddleClickTime)
                {
                    MiddleClickTime = dateTimeToInt(DateTime.Now);
                    LeftClickTime = InitialTime;
                    RightClickTime = InitialTime;
                }
            }
            lastX = X;
            lastY = Y;
            return wParam;
        }
        /// <summary>
        /// 转换时间格式为HHmmssfff
        /// </summary>
        /// <param name="time">需转换的时间</param>
        /// <returns></returns>
        private int dateTimeToInt(DateTime time)
        {
            //转换时间格式为int类型并精确到毫秒
            return Convert.ToInt32(time.ToString("HHmmssfff"));
        }
        ~KeyboardHook()
        {
            Stop();
        }
    }
}

下面是显示界面，使用的是WinFrom窗口，在窗口内用一个文本框和一个定时器

using System;
using System.Windows.Forms;

using autoInput.Support;

namespace autoInput
{
    public partial class autoInput : Form
    {
        public autoInput()
        {
            InitializeComponent();
        }

        KeyboardHook k_hook;
        private void autoInput_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;//全局鼠标单击事件
            k_hook.MouseDownDouble += k_hook_MouseDown;//双击事件
            k_hook.Mousemov += k_hook_MouseDown;//拖动事件
            k_hook.MouseDownRight += k_hook_MouseDown;//右击事件
            k_hook.Start();//安装键盘钩子
        }

        public string button = string.Empty;
        public string keyboardRecordText = string.Empty;
        //单击事件
        void k_hook_MouseDown(object sender, MouseEventArgs e) 
        {
            if (keyboardRecordText != string.Empty && e.Button.ToString() != button)
                showText();
            button = e.Button.ToString();
            keyboardRecordText=string.Format("Button:{0} Clicks:{1} \tX:{2} Y:{3} \t{4} \n", e.Button, e.Clicks, e.X, e.Y, DateTime.Now.ToString("HH:mm:ss.fff"));

            if (e.Clicks == 2)
            {
                showText();
                keyboardRecordText = string.Empty;

            }
            else
            {
                this.timer.Enabled = true;
                timer.Interval = KeyboardHook.GetDoubleClickTime();
            }
        }

        /// <summary>
        /// 键盘事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void hook_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyValue == (int)Keys.Space)
            {
                keyboardRecord.Text += " ";
            }
            else if (e.KeyValue == (int)Keys.Enter)
            {
                keyboardRecord.Text += "\n";
            }
            else
            {
                keyboardRecord.Text += e.KeyData.ToString();
            }
        }

        /// <summary>
        /// 定时器
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void timer_Tick(object sender, EventArgs e)
        {
            showText();
            this.timer.Enabled = false;
        }
        public void showText()
        {
            //keyboardRecord窗口程序内文本框的名称
            keyboardRecord.Text += keyboardRecordText;
            keyboardRecordText = string.Empty;
        }
    }
}

下面是我的项目截图