MouseHook.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Drawing;

/// <summary>
///  参考：https://blog.csdn.net/hu421160052/article/details/99680147
/// </summary>
namespace BiuBiuClick
{
    public class MouseHook
    {
        private Point point;
        private Point Point
        {
            get { return point; }
            set
            {
                if (point != value)
                {
                    point = value;
                    if (MouseMoveEvent != null)
                    {
                        var e = new MouseEventArgs(MouseButtons.None, 0, point.X, point.Y, 0);
                        MouseMoveEvent(this, e);
                    }
                }
            }
        }
        private int hHook;
        private static int hMouseHook = 0;
        private const int WM_MOUSEMOVE = 0x200;
        private const int WM_LBUTTONDOWN = 0x201;
        private const int WM_RBUTTONDOWN = 0x204;
        private const int WM_MBUTTONDOWN = 0x207;
        private const int WM_LBUTTONUP = 0x202;
        private const int WM_RBUTTONUP = 0x205;
        private const int WM_MBUTTONUP = 0x208;
        private const int WM_LBUTTONDBLCLK = 0x203;
        private const int WM_RBUTTONDBLCLK = 0x206;
        private const int WM_MBUTTONDBLCLK = 0x209;

        public const int WH_MOUSE_LL = 14;
        public Win32Api.HookProc hProc;
        private object locker = new object();

        public MouseHook()
        {
            this.Point = new Point();
        }

        public int SetHook()
        {
            if (hProc == null)
            {
                lock (locker)
                {
                    hProc = new Win32Api.HookProc(MouseHookProc);
                    hHook = Win32Api.SetWindowsHookEx(WH_MOUSE_LL, hProc, IntPtr.Zero, 0);
                }
            }
           
            return hHook;
        }

        public void UnHook()
        {
            if (locker != null) 
            {
                lock (locker)
                {
                    Win32Api.UnhookWindowsHookEx(hHook);
                    locker = null;
                }                
            }
            
        }

        private int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)
        {
            Win32Api.MouseHookStruct MyMouseHookStruct = (Win32Api.MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(Win32Api.MouseHookStruct));
            if (nCode < 0)
            {
                return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);
            }
            else
            {
                MouseButtons button = MouseButtons.None;
                int clickCount = 0;
                switch ((Int32)wParam)
                {
                    case WM_LBUTTONDOWN:
                        button = MouseButtons.Left;
                        clickCount = 1;
                        MouseDownEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));
                        break;
                    case WM_RBUTTONDOWN:
                        button = MouseButtons.Right;
                        clickCount = 1;
                        MouseDownEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));
                        break;
                    case WM_MBUTTONDOWN:
                        button = MouseButtons.Middle;
                        clickCount = 1;
                        MouseDownEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));
                        break;
                    case WM_LBUTTONUP:
                        button = MouseButtons.Left;
                        clickCount = 1;
                        MouseUpEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));
                        break;
                    case WM_RBUTTONUP:
                        button = MouseButtons.Right;
                        clickCount = 1;
                        MouseUpEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));
                        break;
                    case WM_MBUTTONUP:
                        button = MouseButtons.Middle;
                        clickCount = 1;
                        MouseUpEvent(this, new MouseEventArgs(button, clickCount, point.X, point.Y, 0));
                        break;
                }

                this.Point = new Point(MyMouseHookStruct.pt.x, MyMouseHookStruct.pt.y);
                return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);
            }
        }
        
        public delegate void MouseMoveHandler(object sender, MouseEventArgs e);
        public event MouseMoveHandler MouseMoveEvent;

        public delegate void MouseClickHandler(object sender, MouseEventArgs e);
        public event MouseClickHandler MouseClickEvent;

        public delegate void MouseDownHandler(object sender, MouseEventArgs e);
        public event MouseDownHandler MouseDownEvent;

        public delegate void MouseUpHandler(object sender, MouseEventArgs e);
        public event MouseUpHandler MouseUpEvent;

        public delegate void MouseDoubleClickHandler(object sender, MouseEventArgs e);
        public event MouseDoubleClickHandler MouseDoubleClickEvent;
    }

    class MouseMonitor{
        private  void MouseMoveEvent(object sender, MouseEventArgs e)
        {
            Console.WriteLine(String.Format("X:{0} Y{1}", e.X, e.Y));
        }

        private void MouseDownEvent(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                Console.WriteLine("press left mouse button");
            }
            if (e.Button == MouseButtons.Right)
            {
                Console.WriteLine("press right mouse button");
            }
        }

        private void MouseUpEvent(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                Console.WriteLine("release left mouse button");
            }
            if (e.Button == MouseButtons.Right)
            {
                Console.WriteLine("release right mouse button");
            }
        }

        public static void Main(string[] args)
        {
            MouseHook mh = new MouseHook();
            MouseMonitor mm = new MouseMonitor();
            mh.SetHook();
            mh.MouseDownEvent += mm.MouseDownEvent;
            mh.MouseUpEvent += mm.MouseUpEvent;
            mh.MouseMoveEvent += mm.MouseMoveEvent;
            string str = Console.ReadLine();
            Console.WriteLine(str);
            mh.UnHook();
        }
    }

   public class Win32Api
    {
        [StructLayout(LayoutKind.Sequential)]
        public class POINT
        {
            public int x;
            public int y;
        }
        [StructLayout(LayoutKind.Sequential)]
        public class MouseHookStruct
        {
            public POINT pt;
            public int hwnd;
            public int wHitTestCode;
            public int dwExtraInfo;
        }
        public delegate int HookProc(int nCode, IntPtr wParam, IntPtr lParam);
        //安装钩子
        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
        public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);
        //卸载钩子
        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
        public static extern bool UnhookWindowsHookEx(int idHook);
        //调用下一个钩子
        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
        public static extern int CallNextHookEx(int idHook, int nCode, IntPtr wParam, IntPtr lParam);
    }
}