C#钩子(Hook) 捕获键盘鼠标所有事件 - 5分钟没有操作,自动关闭 Form 窗体

C# 钩子 捕获键盘鼠标所有事件,可用于:判断鼠标键盘无操作时,关闭 Winform 窗体

5分钟没有操作,自动关闭 Form 窗体

钩子(Hook)的作用主要体现在监视和拦截系统或进程中的各种事件消息,并进行自定义处理。钩子可以截获并处理相应的消息,例如键盘钩子可以截获键盘消息,外壳钩子可以截取、启动和关闭应用程序的消息等。钩子分为线程钩子和系统钩子,线程钩子监视指定线程的事件消息,而系统钩子监视系统中的所有线程的事件消息

钩子的具体应用场景和功能

  • 键盘和鼠标输入监控:钩子可以截获键盘和鼠标的输入,用于记录用户的操作或进行自动化测试。
  • 屏幕取词和日志监视:通过监控系统事件,钩子可以实现屏幕取词功能或记录系统的操作日志。
  • 应用程序监控:外壳钩子可以截取、启动和关闭应用程序的消息,用于监控或管理应用程序的行为。

钩子的种类及其功能

  • 键盘钩子:截获键盘消息,用于记录键盘输入或进行输入拦截。
  • 鼠标钩子:截获鼠标事件,用于监控鼠标操作。
  • 外壳钩子:截取、启动和关闭应用程序的消息,用于管理应用程序行为。
  • 日志钩子:监控系统日志事件,用于记录系统操作日志。

钩子的工作原理

钩子是Windows消息处理机制中的一个监视点,应用程序可以在这里安装一个监视子程序,从而在系统的消息流到达目的窗口的过程前监控它们。通过这种方式,钩子能够实现各种自定义的功能和处理逻辑

  • GlobalHook

  • KeyboardHook

  • MouseHook

  • KeyboardSimulator

  • MouseSimulator

GlobalHook

c# 复制代码
using System;
using System.Text;
using System.Runtime.InteropServices;
using System.Reflection;
using System.Windows.Forms;

namespace VipSoft.BaseClass.Hook
{
    /// <summary>  
    /// Abstract base class for Mouse and Keyboard hooks  
    /// </summary>  
    public abstract class GlobalHook
    {

        #region Windows API Code  

        /// <summary>
        /// 用于控制结构体或类的字段在内存中的布局方式
        /// 具体来说,LayoutKind.Sequential 表示字段将按照它们在源代码中声明的顺序排列
        /// 结构体字段将按照 x、y 的顺序在内存中排列
        /// - Sequential:字段按声明顺序排列,不插入填充字节。
		/// - Explicit:允许开发者精确控制每个字段的存储位置,使用 FieldOffset 属性指定偏移量。
		/// - Auto:由编译器选择最优布局方式,通常不推荐用于与非托管代码交互的场景 		 
        /// </summary>
        [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;
        }

		/// <summary>
		/// CallingConvention属性指定调用约定,它定义了函数如何接收参数和返回值。常见的调用约定包括:		
		///	- CallingConvention.Cdecl:调用者清理堆栈,多用于C/C++库。
		///	- CallingConvention.StdCall:被调用者清理堆栈,Windows API常用。
		///	- CallingConvention.ThisCall:用于C++类方法。
		///	- CallingConvention.FastCall:用于快速调用,较少使用。 
		/// CharSet属性用于指定字符串的字符集,影响字符串的处理和传递方式。主要选项有:		
		///	- CharSet.Ansi:将字符串作为ANSI编码传递。
		///	- CharSet.Unicode:将字符串作为Unicode编码传递。
		///	- CharSet.Auto:根据平台自动选择ANSI或Unicode。
		/// SetLastError属性指定是否在调用非托管函数后调用GetLastError。设置为true时,可以使用Marshal.GetLastWin32Error获取错误代码。
		///
		/// idHook, 指示欲被安装的挂钩处理过程之类型
        /// lpfn, 指向相应的挂钩处理过程.若参数dwThreadId为0或者指示了一个其他进程创建的线程之标识符,则参数lpfn必须指向一个动态链接中的挂钩处理过程.否则,参数lpfn可以指向一个与当前进程相关的代码中定义的挂钩处理过程
		/// hMod 指示了一个动态链接的句柄,该动态连接库包含了参数lpfn 所指向的挂钩处理过程.若参数dwThreadId指示的线程由当前进程创建,并且相应的挂钩处理过程定义于当前进程相关的代码中,则参数hMod必须被设置为NULL(0)。
		/// dwThreadId 指示了一个线程标识符,挂钩处理过程与线程相关.若此参数值为0,则该挂钩处理过程与所有现存的线程相关。
		///
		/// </summary>

        [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; //此挂钩只能在Windows NT中被安装,用来对底层的鼠标输入事件进行监视.详情参见LowLevelMouseProc挂钩处理过程.
        protected const int WH_KEYBOARD_LL = 13; //此挂钩只能在Windows NT中被安装,用来对底层的键盘输入事件进行监视.详情参见LowLevelKeyboardProc挂钩处理过程.

        protected const int WH_MOUSE = 7; //安装一个挂钩处理过程,对鼠标消息进行监视. 详情参见 MouseProc挂钩处理过程.
        protected const int WH_KEYBOARD = 2; //安装一个挂钩处理过程对击键消息进行监视. 详情参见KeyboardProc挂钩处理过程.
        protected const int WM_MOUSEMOVE = 0x200;   //鼠标移动
        protected const int WM_LBUTTONDOWN = 0x201; //鼠标左健按下
        protected const int WM_RBUTTONDOWN = 0x204; //鼠标右健按下
        protected const int WM_MBUTTONDOWN = 0x207; //鼠标滚轮按下
        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  

		/// <summary>
		/// 启用钩子
		///	</summary>	
        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;
                }

            }

        }
        
		/// <summary>
		/// 停止钩子
		///	</summary>	
        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

    }
}

KeyboardHook

C# 复制代码
using System;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace VipSoft.BaseClass.Hook
{
    /// <summary>  
    /// Captures global keyboard events  
    /// </summary>  
    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

    }

}

MouseHook

c# 复制代码
using System;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;


namespace VipSoft.BaseClass.Hook
{
    /// <summary>  
    /// Captures global mouse events  
    /// </summary>  
    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

    }
}

KeyboardSimulator

c# 复制代码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace VipSoft.BaseClass.Hook
{


    /// <summary>  
    /// Standard Keyboard Shortcuts used by most applications  
    /// </summary>  
    public enum StandardShortcut
    {
        Copy,
        Cut,
        Paste,
        SelectAll,
        Save,
        Open,
        New,
        Close,
        Print
    }

    /// <summary>  
    /// Simulate keyboard key presses  
    /// </summary>  
    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

    }
}

MouseSimulator

c# 复制代码
using System;
using System.Text;
using System.Runtime.InteropServices;
using System.Drawing;
using System.Windows.Forms;

namespace VipSoft.BaseClass.Hook
{
    /// <summary>  
    /// And X, Y point on the screen  
    /// </summary>  
    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);
        }

    }

    /// <summary>  
    /// Mouse buttons that can be pressed  
    /// </summary>  
    public enum MouseButton
    {
        Left = 0x2,
        Right = 0x8,
        Middle = 0x20
    }

    /// <summary>  
    /// Operations that simulate mouse events  
    /// </summary>  
    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  

        /// <summary>  
        /// Gets or sets a structure that represents both X and Y mouse coordinates  
        /// </summary>  
        public static MousePoint Position
        {
            get
            {
                return new MousePoint(Cursor.Position);
            }
            set
            {
                Cursor.Position = value;
            }
        }

        /// <summary>  
        /// Gets or sets only the mouse's x coordinate  
        /// </summary>  
        public static int X
        {
            get
            {
                return Cursor.Position.X;
            }
            set
            {
                Cursor.Position = new Point(value, Y);
            }
        }

        /// <summary>  
        /// Gets or sets only the mouse's y coordinate  
        /// </summary>  
        public static int Y
        {
            get
            {
                return Cursor.Position.Y;
            }
            set
            {
                Cursor.Position = new Point(X, value);
            }
        }

        #endregion

        #region Methods  

        /// <summary>  
        /// Press a mouse button down  
        /// </summary>  
        /// <param name="button"></param>  
        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;
            }
        }

        /// <summary>  
        /// Let a mouse button up  
        /// </summary>  
        /// <param name="button"></param>  
        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;
            }
        }

        /// <summary>  
        /// Click a mouse button (down then up)  
        /// </summary>  
        /// <param name="button"></param>  
        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;
            }
        }

        /// <summary>  
        /// Double click a mouse button (down then up twice)  
        /// </summary>  
        /// <param name="button"></param>  
        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;
            }
        }

        /// <summary>  
        /// Show a hidden current on currently application  
        /// </summary>  
        public static void Show()
        {
            ShowCursor(true);
        }

        /// <summary>  
        /// Hide mouse cursor only on current application's forms  
        /// </summary>  
        public static void Hide()
        {
            ShowCursor(false);
        }

        #endregion

    }
}

测试类:

c# 复制代码
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  
    {
	    //用于判断,窗休是否自动关闭
        System.Windows.Forms.Timer mTimer = new System.Windows.Forms.Timer();
		//记录鼠标键盘操作时间,用于判断 Form 窗体自动关闭
        private DateTime mRecordTime = DateTime.Now; 
        MouseHook mouseHook = new MouseHook();  
        KeyboardHook keyboardHook = new KeyboardHook();  
  
        public HookTestForm()  
        {  
            InitializeComponent();  
        }  
  
        private void TestForm_Load(object sender, EventArgs e)  
        {  
           mTimer.Tick += mTimer_Tick;
           mTimer.Interval = 2000;
           mTimer.Start(); //开启定时器
				
            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.ToString(), MouseSimulator.Y.ToString());
  
        }  
  
        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.ToString(), e.Y.ToString());
        }
  
        void SetXYLabel(string keyName, string x, string y)
        {
            this.Text = $"Current keyName={keyName} Point: X={x}, y={y} {DateTime.Now.ToString("HH:mm:ss")}";
            mRecordTime = DateTime.Now;
        }
  
        void AddMouseEvent(string eventType, string button, string x, string y, string delta)  
        {  
  
             //this.Text = $"Current Mouse eventType ={eventType} button ={button} delta ={delta} X ={x}, y ={y}";
             SetXYLabel(button, x, y);
        }  
  
        void AddKeyboardEvent(string eventType, string keyCode, string keyChar, string shift, string alt, string control)  
        {  
  
             //this.Text = $"Current Mouse eventType ={eventType} keyCode ={keyCode} keyChar ={keyChar} shift ={shift}, alt ={alt} control={control}"; 
             SetXYLabel(button, x, y);
        }  
  
        private void TestForm_FormClosed(object sender, FormClosedEventArgs e)  
        {  
  
            // Not necessary anymore, will stop when application exits  
  
            //mouseHook.Stop();  
            //keyboardHook.Stop();  
  
        }  
		
        private bool stopForm = false;  
        //定时器
        private void mTimer_Tick(object sender, EventArgs e)
        {
            if (stopForm)
            {
                return;
            }
            if ((DateTime.Now - mRecordTime).TotalMinutes >= 5) //记录时间大于5分钟
            {
                stopForm = true;
                for (int i = Application.OpenForms.Count - 1; i >= 0; i--)
                {
                    Form item = Application.OpenForms[i];
                    if (item.Name != this.Name && item.Name != "UserLogin") //关闭不是主窗体的打开窗体
                    {
                        item.Close();
                    }
                }
                this.WindowState = FormWindowState.Maximized;
                stopForm = false;
            }
        }

    }  
}