using System;using System.Text;using System.Runtime.InteropServices;using System.Reflection;using System.Windows.Forms;namespace MouseKeyboardLibrary{    /// 
    /// Abstract base class for Mouse and Keyboard hooks    /// 
    public abstract class GlobalHook    {        #region Windows API Code        [StructLayout(LayoutKind.Sequential)]        protected class POINT        {            public int x;            public int y;        }        [StructLayout(LayoutKind.Sequential)]        protected class MouseHookStruct        {            public POINT pt;            public int hwnd;            public int wHitTestCode;            public int dwExtraInfo;        }        [StructLayout(LayoutKind.Sequential)]        protected class MouseLLHookStruct        {            public POINT pt;            public int mouseData;            public int flags;            public int time;            public int dwExtraInfo;        }        [StructLayout(LayoutKind.Sequential)]        protected class KeyboardHookStruct        {            public int vkCode;            public int scanCode;            public int flags;            public int time;            public int dwExtraInfo;        }        [DllImport("user32.dll", CharSet = CharSet.Auto,           CallingConvention = CallingConvention.StdCall, SetLastError = true)]        protected static extern int SetWindowsHookEx(            int idHook,            HookProc lpfn,            IntPtr hMod,            int dwThreadId);        [DllImport("user32.dll", CharSet = CharSet.Auto,            CallingConvention = CallingConvention.StdCall, SetLastError = true)]        protected static extern int UnhookWindowsHookEx(int idHook);        [DllImport("user32.dll", CharSet = CharSet.Auto,             CallingConvention = CallingConvention.StdCall)]        protected static extern int CallNextHookEx(            int idHook,            int nCode,            int wParam,            IntPtr lParam);        [DllImport("user32")]        protected static extern int ToAscii(            int uVirtKey,            int uScanCode,            byte[] lpbKeyState,            byte[] lpwTransKey,            int fuState);        [DllImport("user32")]        protected static extern int GetKeyboardState(byte[] pbKeyState);        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]        protected static extern short GetKeyState(int vKey);        protected delegate int HookProc(int nCode, int wParam, IntPtr lParam);        protected const int WH_MOUSE_LL = 14;        protected const int WH_KEYBOARD_LL = 13;        protected const int WH_MOUSE = 7;        protected const int WH_KEYBOARD = 2;        protected const int WM_MOUSEMOVE = 0x200;        protected const int WM_LBUTTONDOWN = 0x201;        protected const int WM_RBUTTONDOWN = 0x204;        protected const int WM_MBUTTONDOWN = 0x207;        protected const int WM_LBUTTONUP = 0x202;        protected const int WM_RBUTTONUP = 0x205;        protected const int WM_MBUTTONUP = 0x208;        protected const int WM_LBUTTONDBLCLK = 0x203;        protected const int WM_RBUTTONDBLCLK = 0x206;        protected const int WM_MBUTTONDBLCLK = 0x209;        protected const int WM_MOUSEWHEEL = 0x020A;        protected const int WM_KEYDOWN = 0x100;        protected const int WM_KEYUP = 0x101;        protected const int WM_SYSKEYDOWN = 0x104;        protected const int WM_SYSKEYUP = 0x105;        protected const byte VK_SHIFT = 0x10;        protected const byte VK_CAPITAL = 0x14;        protected const byte VK_NUMLOCK = 0x90;        protected const byte VK_LSHIFT = 0xA0;        protected const byte VK_RSHIFT = 0xA1;        protected const byte VK_LCONTROL = 0xA2;        protected const byte VK_RCONTROL = 0x3;        protected const byte VK_LALT = 0xA4;        protected const byte VK_RALT = 0xA5;        protected const byte LLKHF_ALTDOWN = 0x20;        #endregion        #region Private Variables        protected int _hookType;        protected int _handleToHook;        protected bool _isStarted;        protected HookProc _hookCallback;        #endregion        #region Properties        public bool IsStarted        {            get            {                return _isStarted;            }        }        #endregion        #region Constructor        public GlobalHook()        {            Application.ApplicationExit += new EventHandler(Application_ApplicationExit);        }        #endregion        #region Methods        public void Start()        {            if (!_isStarted && _hookType != 0)            {                // Make sure we keep a reference to this delegate!                // If not, GC randomly collects it, and a NullReference exception is thrown                _hookCallback = new HookProc(HookCallbackProcedure);                _handleToHook = SetWindowsHookEx(                    _hookType,                    _hookCallback,                    Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]),                    0);                // Were we able to sucessfully start hook?                if (_handleToHook != 0)                {                    _isStarted = true;                }            }        }        public void Stop()        {            if (_isStarted)            {                UnhookWindowsHookEx(_handleToHook);                _isStarted = false;            }        }        protected virtual int HookCallbackProcedure(int nCode, Int32 wParam, IntPtr lParam)        {           // This method must be overriden by each extending hook            return 0;        }        protected void Application_ApplicationExit(object sender, EventArgs e)        {            if (_isStarted)            {                Stop();            }        }        #endregion    }}

　　

using System;using System.Text;using System.Windows.Forms;using System.Runtime.InteropServices;namespace MouseKeyboardLibrary{    /// 
    /// Captures global keyboard events    /// 
    public class KeyboardHook : GlobalHook    {        #region Events        public event KeyEventHandler KeyDown;        public event KeyEventHandler KeyUp;        public event KeyPressEventHandler KeyPress;        #endregion        #region Constructor        public KeyboardHook()        {            _hookType = WH_KEYBOARD_LL;        }        #endregion        #region Methods        protected override int HookCallbackProcedure(int nCode, int wParam, IntPtr lParam)        {            bool handled = false;            if (nCode > -1 && (KeyDown != null || KeyUp != null || KeyPress != null))            {                KeyboardHookStruct keyboardHookStruct =                    (KeyboardHookStruct)Marshal.PtrToStructure(lParam, typeof(KeyboardHookStruct));                // Is Control being held down?                bool control = ((GetKeyState(VK_LCONTROL) & 0x80) != 0) ||                               ((GetKeyState(VK_RCONTROL) & 0x80) != 0);                // Is Shift being held down?                bool shift = ((GetKeyState(VK_LSHIFT) & 0x80) != 0) ||                             ((GetKeyState(VK_RSHIFT) & 0x80) != 0);                // Is Alt being held down?                bool alt = ((GetKeyState(VK_LALT) & 0x80) != 0) ||                           ((GetKeyState(VK_RALT) & 0x80) != 0);                // Is CapsLock on?                bool capslock = (GetKeyState(VK_CAPITAL) != 0);                // Create event using keycode and control/shift/alt values found above                KeyEventArgs e = new KeyEventArgs(                    (Keys)(                        keyboardHookStruct.vkCode |                        (control ? (int)Keys.Control : 0) |                        (shift ? (int)Keys.Shift : 0) |                        (alt ? (int)Keys.Alt : 0)                        ));                // Handle KeyDown and KeyUp events                switch (wParam)                {                    case WM_KEYDOWN:                    case WM_SYSKEYDOWN:                        if (KeyDown != null)                        {                            KeyDown(this, e);                            handled = handled || e.Handled;                        }                        break;                    case WM_KEYUP:                    case WM_SYSKEYUP:                        if (KeyUp != null)                        {                            KeyUp(this, e);                            handled = handled || e.Handled;                        }                        break;                }                // Handle KeyPress event                if (wParam == WM_KEYDOWN &&                   !handled &&                   !e.SuppressKeyPress &&                    KeyPress != null)                {                    byte[] keyState = new byte[256];                    byte[] inBuffer = new byte[2];                    GetKeyboardState(keyState);                    if (ToAscii(keyboardHookStruct.vkCode,                              keyboardHookStruct.scanCode,                              keyState,                              inBuffer,                              keyboardHookStruct.flags) == 1)                    {                        char key = (char)inBuffer[0];                        if ((capslock ^ shift) && Char.IsLetter(key))                            key = Char.ToUpper(key);                        KeyPressEventArgs e2 = new KeyPressEventArgs(key);                        KeyPress(this, e2);                        handled = handled || e.Handled;                    }                }            }            if (handled)            {                return 1;            }            else            {                return CallNextHookEx(_handleToHook, nCode, wParam, lParam);            }        }        #endregion    }}

　　

using System;using System.Text;using System.Runtime.InteropServices;using System.Windows.Forms;namespace MouseKeyboardLibrary{    /// 
    /// Standard Keyboard Shortcuts used by most applications    /// 
    public enum StandardShortcut    {        Copy,        Cut,        Paste,        SelectAll,        Save,        Open,        New,        Close,        Print    }    /// 
    /// Simulate keyboard key presses    /// 
    public static class KeyboardSimulator    {        #region Windows API Code        const int KEYEVENTF_EXTENDEDKEY = 0x1;        const int KEYEVENTF_KEYUP = 0x2;        [DllImport("user32.dll")]        static extern void keybd_event(byte key, byte scan, int flags, int extraInfo);         #endregion        #region Methods        public static void KeyDown(Keys key)        {            keybd_event(ParseKey(key), 0, 0, 0);        }        public static void KeyUp(Keys key)        {            keybd_event(ParseKey(key), 0, KEYEVENTF_KEYUP, 0);        }        public static void KeyPress(Keys key)        {            KeyDown(key);            KeyUp(key);        }        public static void SimulateStandardShortcut(StandardShortcut shortcut)        {            switch (shortcut)            {                case StandardShortcut.Copy:                    KeyDown(Keys.Control);                    KeyPress(Keys.C);                    KeyUp(Keys.Control);                    break;                case StandardShortcut.Cut:                    KeyDown(Keys.Control);                    KeyPress(Keys.X);                    KeyUp(Keys.Control);                    break;                case StandardShortcut.Paste:                    KeyDown(Keys.Control);                    KeyPress(Keys.V);                    KeyUp(Keys.Control);                    break;                case StandardShortcut.SelectAll:                    KeyDown(Keys.Control);                    KeyPress(Keys.A);                    KeyUp(Keys.Control);                    break;                case StandardShortcut.Save:                    KeyDown(Keys.Control);                    KeyPress(Keys.S);                    KeyUp(Keys.Control);                    break;                case StandardShortcut.Open:                    KeyDown(Keys.Control);                    KeyPress(Keys.O);                    KeyUp(Keys.Control);                    break;                case StandardShortcut.New:                    KeyDown(Keys.Control);                    KeyPress(Keys.N);                    KeyUp(Keys.Control);                    break;                case StandardShortcut.Close:                    KeyDown(Keys.Alt);                    KeyPress(Keys.F4);                    KeyUp(Keys.Alt);                    break;                case StandardShortcut.Print:                    KeyDown(Keys.Control);                    KeyPress(Keys.P);                    KeyUp(Keys.Control);                    break;            }        }        static byte ParseKey(Keys key)        {            // Alt, Shift, and Control need to be changed for API function to work with them            switch (key)            {                case Keys.Alt:                    return (byte)18;                case Keys.Control:                    return (byte)17;                case Keys.Shift:                    return (byte)16;                default:                    return (byte)key;            }        }         #endregion    }}

　　

using System;using System.Text;using System.Windows.Forms;using System.Runtime.InteropServices;namespace MouseKeyboardLibrary{    /// 
    /// Captures global mouse events    /// 
    public class MouseHook : GlobalHook    {        #region MouseEventType Enum        private enum MouseEventType        {            None,            MouseDown,            MouseUp,            DoubleClick,            MouseWheel,            MouseMove        }        #endregion        #region Events        public event MouseEventHandler MouseDown;        public event MouseEventHandler MouseUp;        public event MouseEventHandler MouseMove;        public event MouseEventHandler MouseWheel;        public event EventHandler Click;        public event EventHandler DoubleClick;        #endregion        #region Constructor        public MouseHook()        {            _hookType = WH_MOUSE_LL;        }        #endregion        #region Methods        protected override int HookCallbackProcedure(int nCode, int wParam, IntPtr lParam)        {            if (nCode > -1 && (MouseDown != null || MouseUp != null || MouseMove != null))            {                MouseLLHookStruct mouseHookStruct =                    (MouseLLHookStruct)Marshal.PtrToStructure(lParam, typeof(MouseLLHookStruct));                MouseButtons button = GetButton(wParam);                MouseEventType eventType = GetEventType(wParam);                MouseEventArgs e = new MouseEventArgs(                    button,                    (eventType == MouseEventType.DoubleClick ? 2 : 1),                    mouseHookStruct.pt.x,                    mouseHookStruct.pt.y,                    (eventType == MouseEventType.MouseWheel ? (short)((mouseHookStruct.mouseData >> 16) & 0xffff) : 0));                // Prevent multiple Right Click events (this probably happens for popup menus)                if (button == MouseButtons.Right && mouseHookStruct.flags != 0)                {                    eventType = MouseEventType.None;                }                switch (eventType)                {                    case MouseEventType.MouseDown:                        if (MouseDown != null)                        {                            MouseDown(this, e);                        }                        break;                    case MouseEventType.MouseUp:                        if (Click != null)                        {                            Click(this, new EventArgs());                        }                        if (MouseUp != null)                        {                            MouseUp(this, e);                        }                        break;                    case MouseEventType.DoubleClick:                        if (DoubleClick != null)                        {                            DoubleClick(this, new EventArgs());                        }                        break;                    case MouseEventType.MouseWheel:                        if (MouseWheel != null)                        {                            MouseWheel(this, e);                        }                        break;                    case MouseEventType.MouseMove:                        if (MouseMove != null)                        {                            MouseMove(this, e);                        }                        break;                    default:                        break;                }             }            return CallNextHookEx(_handleToHook, nCode, wParam, lParam);        }        private MouseButtons GetButton(Int32 wParam)        {            switch (wParam)            {                case WM_LBUTTONDOWN:                case WM_LBUTTONUP:                case WM_LBUTTONDBLCLK:                    return MouseButtons.Left;                case WM_RBUTTONDOWN:                case WM_RBUTTONUP:                case WM_RBUTTONDBLCLK:                    return MouseButtons.Right;                case WM_MBUTTONDOWN:                case WM_MBUTTONUP:                case WM_MBUTTONDBLCLK:                    return MouseButtons.Middle;                default:                    return MouseButtons.None;            }        }        private MouseEventType GetEventType(Int32 wParam)        {            switch (wParam)            {                case WM_LBUTTONDOWN:                case WM_RBUTTONDOWN:                case WM_MBUTTONDOWN:                    return MouseEventType.MouseDown;                case WM_LBUTTONUP:                case WM_RBUTTONUP:                case WM_MBUTTONUP:                    return MouseEventType.MouseUp;                case WM_LBUTTONDBLCLK:                case WM_RBUTTONDBLCLK:                case WM_MBUTTONDBLCLK:                    return MouseEventType.DoubleClick;                case WM_MOUSEWHEEL:                    return MouseEventType.MouseWheel;                case WM_MOUSEMOVE:                    return MouseEventType.MouseMove;                default:                    return MouseEventType.None;            }        }        #endregion          }}

　　

using System;using System.Text;using System.Runtime.InteropServices;using System.Drawing;using System.Windows.Forms;namespace MouseKeyboardLibrary{    /// 
    /// And X, Y point on the screen    /// 
    public struct MousePoint    {        public MousePoint(Point p)        {            X = p.X;            Y = p.Y;        }        public int X;        public int Y;        public static implicit operator Point(MousePoint p)        {            return new Point(p.X, p.Y);        }    }    /// 
    /// Mouse buttons that can be pressed    /// 
    public enum MouseButton    {        Left = 0x2,        Right = 0x8,        Middle = 0x20    }    /// 
    /// Operations that simulate mouse events    /// 
    public static class MouseSimulator    {        #region Windows API Code        [DllImport("user32.dll")]        static extern int ShowCursor(bool show);        [DllImport("user32.dll")]        static extern void mouse_event(int flags, int dX, int dY, int buttons, int extraInfo);        const int MOUSEEVENTF_MOVE = 0x1;        const int MOUSEEVENTF_LEFTDOWN = 0x2;        const int MOUSEEVENTF_LEFTUP = 0x4;        const int MOUSEEVENTF_RIGHTDOWN = 0x8;        const int MOUSEEVENTF_RIGHTUP = 0x10;        const int MOUSEEVENTF_MIDDLEDOWN = 0x20;        const int MOUSEEVENTF_MIDDLEUP = 0x40;        const int MOUSEEVENTF_WHEEL = 0x800;        const int MOUSEEVENTF_ABSOLUTE = 0x8000;         #endregion        #region Properties        /// 
        /// Gets or sets a structure that represents both X and Y mouse coordinates        /// 
        public static MousePoint Position        {            get            {                return new MousePoint(Cursor.Position);            }            set            {                Cursor.Position = value;            }        }        /// 
        /// Gets or sets only the mouse's x coordinate        /// 
        public static int X        {            get            {                return Cursor.Position.X;            }            set            {                Cursor.Position = new Point(value, Y);            }        }        /// 
        /// Gets or sets only the mouse's y coordinate        /// 
        public static int Y        {            get            {                return Cursor.Position.Y;            }            set            {                Cursor.Position = new Point(X, value);            }        }         #endregion        #region Methods        /// 
        /// Press a mouse button down        /// 
        ///         public static void MouseDown(MouseButton button)        {            mouse_event(((int)button), 0, 0, 0, 0);        }        public static void MouseDown(MouseButtons button)        {            switch (button)            {                case MouseButtons.Left:                    MouseDown(MouseButton.Left);                    break;                case MouseButtons.Middle:                    MouseDown(MouseButton.Middle);                    break;                case MouseButtons.Right:                    MouseDown(MouseButton.Right);                    break;            }        }        /// 
        /// Let a mouse button up        /// 
        ///         public static void MouseUp(MouseButton button)        {            mouse_event(((int)button) * 2, 0, 0, 0, 0);        }        public static void MouseUp(MouseButtons button)        {            switch (button)            {                case MouseButtons.Left:                    MouseUp(MouseButton.Left);                    break;                case MouseButtons.Middle:                    MouseUp(MouseButton.Middle);                    break;                case MouseButtons.Right:                    MouseUp(MouseButton.Right);                    break;            }        }        /// 
        /// Click a mouse button (down then up)        /// 
        ///         public static void Click(MouseButton button)        {            MouseDown(button);            MouseUp(button);        }        public static void Click(MouseButtons button)        {            switch (button)            {                case MouseButtons.Left:                    Click(MouseButton.Left);                    break;                case MouseButtons.Middle:                    Click(MouseButton.Middle);                    break;                case MouseButtons.Right:                    Click(MouseButton.Right);                    break;            }        }        /// 
        /// Double click a mouse button (down then up twice)        /// 
        ///         public static void DoubleClick(MouseButton button)        {            Click(button);            Click(button);        }        public static void DoubleClick(MouseButtons button)        {            switch (button)            {                case MouseButtons.Left:                    DoubleClick(MouseButton.Left);                    break;                case MouseButtons.Middle:                    DoubleClick(MouseButton.Middle);                    break;                case MouseButtons.Right:                    DoubleClick(MouseButton.Right);                    break;            }        }        /// 
        /// Show a hidden current on currently application        /// 
        public static void Show()        {            ShowCursor(true);        }        /// 
        /// Hide mouse cursor only on current application's forms        /// 
        public static void Hide()        {            ShowCursor(false);        }         #endregion    }}

　　

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using MouseKeyboardLibrary;namespace SampleApplication{    /*      上面的5个类编译成Dll引用,使用例子     */    public partial class HookTestForm : Form    {        MouseHook mouseHook = new MouseHook();        KeyboardHook keyboardHook = new KeyboardHook();        public HookTestForm()        {            InitializeComponent();        }        private void TestForm_Load(object sender, EventArgs e)        {            mouseHook.MouseMove += new MouseEventHandler(mouseHook_MouseMove);            mouseHook.MouseDown += new MouseEventHandler(mouseHook_MouseDown);            mouseHook.MouseUp += new MouseEventHandler(mouseHook_MouseUp);            mouseHook.MouseWheel += new MouseEventHandler(mouseHook_MouseWheel);            keyboardHook.KeyDown += new KeyEventHandler(keyboardHook_KeyDown);            keyboardHook.KeyUp += new KeyEventHandler(keyboardHook_KeyUp);            keyboardHook.KeyPress += new KeyPressEventHandler(keyboardHook_KeyPress);            mouseHook.Start();            keyboardHook.Start();            SetXYLabel(MouseSimulator.X, MouseSimulator.Y);        }        void keyboardHook_KeyPress(object sender, KeyPressEventArgs e)        {            AddKeyboardEvent(                "KeyPress",                "",                e.KeyChar.ToString(),                "",                "",                ""                );        }        void keyboardHook_KeyUp(object sender, KeyEventArgs e)        {            AddKeyboardEvent(                "KeyUp",                e.KeyCode.ToString(),                "",                e.Shift.ToString(),                e.Alt.ToString(),                e.Control.ToString()                );        }        void keyboardHook_KeyDown(object sender, KeyEventArgs e)        {            AddKeyboardEvent(                "KeyDown",                e.KeyCode.ToString(),                "",                e.Shift.ToString(),                e.Alt.ToString(),                e.Control.ToString()                );        }        void mouseHook_MouseWheel(object sender, MouseEventArgs e)        {           AddMouseEvent(                "MouseWheel",                "",                "",                "",                e.Delta.ToString()                );        }        void mouseHook_MouseUp(object sender, MouseEventArgs e)        {            AddMouseEvent(                "MouseUp",                e.Button.ToString(),                e.X.ToString(),                e.Y.ToString(),                ""                );        }        void mouseHook_MouseDown(object sender, MouseEventArgs e)        {            AddMouseEvent(                "MouseDown",                e.Button.ToString(),                e.X.ToString(),                e.Y.ToString(),                ""                );        }        void mouseHook_MouseMove(object sender, MouseEventArgs e)        {            SetXYLabel(e.X, e.Y);        }        void SetXYLabel(int x, int y)        {            curXYLabel.Text = String.Format("Current Mouse Point: X={0}, y={1}", x, y);        }        void AddMouseEvent(string eventType, string button, string x, string y, string delta)        {            listView1.Items.Insert(0,                new ListViewItem(                    new string[]{                        eventType,                         button,                        x,                        y,                        delta                    }));        }        void AddKeyboardEvent(string eventType, string keyCode, string keyChar, string shift, string alt, string control)        {            listView2.Items.Insert(0,                 new ListViewItem(                     new string[]{                        eventType,                         keyCode,                        keyChar,                        shift,                        alt,                        control                }));        }        private void TestForm_FormClosed(object sender, FormClosedEventArgs e)        {            // Not necessary anymore, will stop when application exits            //mouseHook.Stop();            //keyboardHook.Stop();        }    }}