VSTO Office二次开发键盘鼠标钩子使用整理

可能通过程序控制键盘的操作和控制鼠标的一些操作,网上提供比较多的也是比较好的就是通过钩子(Hook)的方式实现。
简单整理了一下,没有找到很好的程序示例,做了个简单的Hook测试。(对于Hook的原理和调用细则,这里不涉及了,只是简单的Hook小测试,感兴趣的查一下吧)
1.Win32API函数:(简单封装对于API函数的调用)

View Code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;

namespace TestHook.MyHook
{
    class Win32API
    {
        #region DLL导入
        /// <summary>
        /// 用于设置窗口
        /// </summary>
        /// <param name="hWnd"></param>
        /// <param name="hWndInsertAfter"></param>
        /// <param name="X"></param>
        /// <param name="Y"></param>
        /// <param name="cx"></param>
        /// <param name="cy"></param>
        /// <param name="uFlags"></param>
        /// <returns></returns>
        [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)]
        public static extern bool SetWindowPos(IntPtr hWnd, int hWndInsertAfter,int X, int Y, int cx, int cy, int uFlags);

        /// <summary>
        /// 安装钩子
        /// </summary>
        /// <param name="idHook">钩子类型,鼠标\键盘\巨集等10几种</param>
        /// <param name="lpfn">挂钩的函数,用来处理拦截消息的函数,全局函数</param>
        /// <param name="hInstance">当前进程的句柄,
        /// 为NULL:当前进程创建的一个线程,子程位于当前进程;
        /// 为0(IntPtr.Zero):钩子子程与所有的线程关联,即为全局钩子</param>
        /// <param name="threadId">设置要挂接的线程ID.为NULL则为全局钩子</param>
        /// <returns></returns>
        [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)]
        public static extern IntPtr SetWindowsHookEx(IntPtr idHook, HookProc lpfn,IntPtr pInstance, uint threadId);

        /// <summary>
        /// 卸载钩子
        /// </summary>
        /// <param name="idHook"></param>
        /// <returns></returns>
        [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)]
        public static extern bool UnhookWindowsHookEx(IntPtr pHookHandle);

        /// <summary>
        /// 传递钩子
        /// 用于把拦截的消息继续传递下去,不然其他程序可能会得不到相应的消息
        /// </summary>
        /// <param name="idHook"></param>
        /// <param name="nCode"></param>
        /// <param name="wParam"></param>
        /// <param name="lParam"></param>
        /// <returns></returns>
        [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)]
        public static extern int CallNextHookEx(IntPtr pHookHandle, int nCode,IntPtr wParam, IntPtr lParam);

        /// <summary>
        /// 转换当前按键信息
        /// </summary>
        /// <param name="uVirtKey"></param>
        /// <param name="uScanCode"></param>
        /// <param name="lpbKeyState"></param>
        /// <param name="lpwTransKey"></param>
        /// <param name="fuState"></param>
        /// <returns></returns>
        [DllImport("user32.dll")]
        public static extern int ToAscii(UInt32 uVirtKey, UInt32 uScanCode,byte[] lpbKeyState, byte[] lpwTransKey, UInt32 fuState);

        /// <summary>
        /// 获取按键状态
        /// </summary>
        /// <param name="pbKeyState"></param>
        /// <returns>非0表示成功</returns>
        [DllImport("user32.dll")]
        public static extern int GetKeyboardState(byte[] pbKeyState);

        [DllImport("user32.dll")]
        public static extern short GetKeyStates(int vKey);

        /// <summary>
        /// 获取当前线程Id
        /// </summary>
        /// <returns></returns>
        [DllImport("kernel32.dll")]
        public static extern uint GetCurrentThreadId();

        /// <summary>
        /// 截屏位置
        /// </summary>
        /// <param name="hdcDest">目标设备的句柄 </param>
        /// <param name="nXDest">目标对象的左上角的X坐标</param>
        /// <param name="nYDest">目标对象的左上角的Y坐标</param>
        /// <param name="nWidth">目标对象的矩形的宽度</param>
        /// <param name="nHeight">目标对象的矩形的高度 </param>
        /// <param name="hdcSrc">源设备的句柄 </param>
        /// <param name="nXSrc">源对象的左上角的X坐标 </param>
        /// <param name="nYSrc">源对象的左上角的Y坐标 </param>
        /// <param name="dwRop">光栅的操作值 </param>
        /// <returns></returns>
        [DllImportAttribute("gdi32.dll")]
        private static extern bool BitBlt(IntPtr hdcDest, int nXDest,int nYDest,int nWidth,int nHeight,
            IntPtr hdcSrc,int nXSrc,int nYSrc,System.Int32 dwRop);

        /// <summary>
        /// 
        /// </summary>
        /// <param name="lpszDriver">驱动名称</param>
        /// <param name="lpszDevice">设备名称</param>
        /// <param name="lpszOutput">无用,可以设定为"NULL"</param>
        /// <param name="lpInitData">任意的打印机数据</param>
        /// <returns></returns>
        [DllImportAttribute("gdi32.dll")]
        private static extern IntPtr CreateDC(string lpszDriver,string lpszDevice,string lpszOutput,IntPtr lpInitData);
        #endregion DLL导入

        /// <summary>
        /// 钩子委托声明
        /// </summary>
        /// <param name="nCode"></param>
        /// <param name="wParam"></param>
        /// <param name="lParam"></param>
        /// <returns></returns>
        public delegate int HookProc(int nCode, IntPtr wParam, IntPtr lParam);
    }
}

2.HookHelper.cs:(对于一些标识的定义,特别注意鼠标和键盘的标识参数)

View Code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;

namespace TestHook.MyHook
{
    public class HookHelper
    {
        #region 枚举定义
        /// <summary>
        /// 操作类型
        /// </summary>
        public enum HookType
        {
            KeyOperation,//键盘操作
            MouseOperation//鼠标操作
        }

        /// <summary>
        /// 底层钩子标识
        /// </summary>
        public enum WH_Codes : int
        {
            //底层键盘钩子
            WH_KEYBOARD_LL = 2,//2:监听键盘消息并且是线程钩子;13:全局鼠标钩子监听

            //底层鼠标钩子
            WH_MOUSE_LL = 7, //7:监听鼠标钩子;14:全局键盘钩子监听鼠标信息

            //nCode为0
            HC_ACTION = 0
        }

        /// <summary>
        /// 鼠标按钮标识
        /// </summary>
        public enum WM_MOUSE : int
        {
            /// <summary>
            /// 鼠标开始
            /// </summary>
            WM_MOUSEFIRST = 0x200,

            /// <summary>
            /// 鼠标移动
            /// </summary>
            WM_MOUSEMOVE = 0x200,

            /// <summary>
            /// 左键按下
            /// </summary>
            WM_LBUTTONDOWN = 0x201,

            /// <summary>
            /// 左键释放
            /// </summary>
            WM_LBUTTONUP = 0x202,

            /// <summary>
            /// 左键双击
            /// </summary>
            WM_LBUTTONDBLCLK = 0x203,

            /// <summary>
            /// 右键按下
            /// </summary>
            WM_RBUTTONDOWN = 0x204,

            /// <summary>
            /// 右键释放
            /// </summary>
            WM_RBUTTONUP = 0x205,

            /// <summary>
            /// 右键双击
            /// </summary>
            WM_RBUTTONDBLCLK = 0x206,

            /// <summary>
            /// 中键按下
            /// </summary>
            WM_MBUTTONDOWN = 0x207,

            /// <summary>
            /// 中键释放
            /// </summary>
            WM_MBUTTONUP = 0x208,

            /// <summary>
            /// 中键双击
            /// </summary>
            WM_MBUTTONDBLCLK = 0x209,

            /// <summary>
            /// 滚轮滚动
            /// </summary>
            /// <remarks>WINNT4.0以上才支持此消息</remarks>
            WM_MOUSEWHEEL = 0x020A
        }

        /// <summary>
        /// 键盘按键标识
        /// </summary>
        public enum WM_KEYBOARD : int
        {
            /// <summary>
            /// 非系统按键按下
            /// </summary>
            WM_KEYDOWN = 0x100,

            /// <summary>
            /// 非系统按键释放
            /// </summary>
            WM_KEYUP = 0x101,

            /// <summary>
            /// 系统按键按下
            /// </summary>
            WM_SYSKEYDOWN = 0x104,

            /// <summary>
            /// 系统按键释放
            /// </summary>
            WM_SYSKEYUP = 0x105
        }

        /// <summary>
        /// SetWindowPos标志位枚举
        /// </summary>
        /// <remarks>详细说明,请参见MSDN中关于SetWindowPos函数的描述</remarks>
        public enum SetWindowPosFlags : int
        {
            /// <summary>
            /// 
            /// </summary>
            SWP_NOSIZE = 0x0001,

            /// <summary>
            /// 
            /// </summary>
            SWP_NOMOVE = 0x0002,

            /// <summary>
            /// 
            /// </summary>
            SWP_NOZORDER = 0x0004,

            /// <summary>
            /// 
            /// </summary>
            SWP_NOREDRAW = 0x0008,

            /// <summary>
            /// 
            /// </summary>
            SWP_NOACTIVATE = 0x0010,

            /// <summary>
            /// 
            /// </summary>
            SWP_FRAMECHANGED = 0x0020,

            /// <summary>
            /// 
            /// </summary>
            SWP_SHOWWINDOW = 0x0040,

            /// <summary>
            /// 
            /// </summary>
            SWP_HIDEWINDOW = 0x0080,

            /// <summary>
            /// 
            /// </summary>
            SWP_NOCOPYBITS = 0x0100,

            /// <summary>
            /// 
            /// </summary>
            SWP_NOOWNERZORDER = 0x0200,

            /// <summary>
            /// 
            /// </summary>
            SWP_NOSENDCHANGING = 0x0400,

            /// <summary>
            /// 
            /// </summary>
            SWP_DRAWFRAME = 0x0020,

            /// <summary>
            /// 
            /// </summary>
            SWP_NOREPOSITION = 0x0200,

            /// <summary>
            /// 
            /// </summary>
            SWP_DEFERERASE = 0x2000,

            /// <summary>
            /// 
            /// </summary>
            SWP_ASYNCWINDOWPOS = 0x4000

        }

        #endregion 枚举定义

        #region 结构定义

        [StructLayout(LayoutKind.Sequential)]
        public struct POINT
        {
            public int X;
            public int Y;
        }

        /// <summary>
        /// 鼠标钩子事件结构定义
        /// </summary>
        /// <remarks>详细说明请参考MSDN中关于 MSLLHOOKSTRUCT 的说明</remarks>
        [StructLayout(LayoutKind.Sequential)]
        public struct MouseHookStruct
        {
            /// <summary>
            /// Specifies a POINT structure that contains the x- and y-coordinates of the cursor, in screen coordinates.
            /// </summary>
            public POINT Point;

            public UInt32 MouseData;
            public UInt32 Flags;
            public UInt32 Time;
            public UInt32 ExtraInfo;
        }

        /// <summary>
        /// 键盘钩子事件结构定义
        /// </summary>
        /// <remarks>详细说明请参考MSDN中关于 KBDLLHOOKSTRUCT 的说明</remarks>
        [StructLayout(LayoutKind.Sequential)]
        public struct KeyboardHookStruct
        {
            /// <summary>
            /// Specifies a virtual-key code. The code must be a value in the range 1 to 254. 
            /// </summary>
            public UInt32 VKCode;

            /// <summary>
            /// Specifies a hardware scan code for the key.
            /// </summary>
            public UInt32 ScanCode;

            /// <summary>
            /// Specifies the extended-key flag, event-injected flag, context code, 
            /// and transition-state flag. This member is specified as follows. 
            /// An application can use the following values to test the keystroke flags. 
            /// </summary>
            public UInt32 Flags;

            /// <summary>
            /// Specifies the time stamp for this message. 
            /// </summary>
            public UInt32 Time;

            /// <summary>
            /// Specifies extra information associated with the message. 
            /// </summary>
            public UInt32 ExtraInfo;
        }

        #endregion 结构定义
    }
}

3.Hook.cs:(简单对于键盘、鼠标的操作进行监控)

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

namespace TestHook.MyHook
{
    public class Hook
    {
        #region 定义变量
        //定义鼠标钩子处理函数
        private Win32API.HookProc MouseHookProcedure = null;
        //定义键盘钩子处理函数
        private Win32API.HookProc KeyboardProcDelegate = null;

        //定义键盘钩子句柄
        private IntPtr khook;
        //定义鼠标钩子句柄
        private IntPtr hHook = IntPtr.Zero;

        //定义鼠标事件
        public event MouseEventHandler OnMouseActivity;
        #endregion

        /// <summary>
        /// 安装钩子
        /// </summary>
        public void InstallHook(HookHelper.HookType hookType)
        {
            if (hookType == HookHelper.HookType.KeyOperation)
            {
                if (khook == IntPtr.Zero)//键盘钩子
                {
                    uint id = Win32API.GetCurrentThreadId();
                    this.KeyboardProcDelegate = new Win32API.HookProc(this.KeyboardProc);
                    khook = Win32API.SetWindowsHookEx((IntPtr)HookHelper.WH_Codes.WH_KEYBOARD_LL, this.KeyboardProcDelegate, IntPtr.Zero, id);
                }
            }
            else
            {
                if (hHook == IntPtr.Zero)//鼠标钩子
                {
                    uint id = Win32API.GetCurrentThreadId();
                    this.MouseHookProcedure = new Win32API.HookProc(this.MouseHookProc);
                    //这里挂节钩子
                    hHook = Win32API.SetWindowsHookEx((IntPtr)HookHelper.WH_Codes.WH_MOUSE_LL, MouseHookProcedure, IntPtr.Zero, id);
                }
            }
        }

        /// <summary>
        /// 卸载鼠标钩子
        /// </summary>
        public void UnInstallHook(HookHelper.HookType hookType)
        {
            bool isSuccess = false;
            if (hookType == HookHelper.HookType.KeyOperation)//键盘钩子
            {
                if (khook != IntPtr.Zero)
                {
                    isSuccess = Win32API.UnhookWindowsHookEx(khook);
                    this.khook = IntPtr.Zero;
                }
            }
            else
            {
                if (this.hHook != IntPtr.Zero)//鼠标钩子
                {
                    isSuccess = Win32API.UnhookWindowsHookEx(hHook);
                    this.hHook = IntPtr.Zero;
                }
            }
            if (isSuccess)
            {
                MessageBox.Show("卸载成功!");
            }
            else
            {
                MessageBox.Show("卸载失败!");
            }
        }

        /// <summary>
        /// 鼠标钩子处理函数
        /// </summary>
        /// <param name="nCode"></param>
        /// <param name="wParam"></param>
        /// <param name="lParam"></param>
        /// <returns></returns>
        private int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)
        {
            if (nCode < (int)HookHelper.WH_Codes.HC_ACTION)
            {
                return Win32API.CallNextHookEx(hHook, nCode, wParam, lParam);
            }

            if (OnMouseActivity != null)
            {
                //Marshall the data from callback.
                HookHelper.MouseHookStruct mouseHookStruct = (HookHelper.MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(HookHelper.MouseHookStruct));
                MouseButtons button = MouseButtons.None;
                short mouseDelta = 0;
                switch ((int)wParam)
                {
                    case (int)HookHelper.WM_MOUSE.WM_LBUTTONDOWN:
                        //case WM_LBUTTONUP: 
                        //case WM_LBUTTONDBLCLK:
                        button = MouseButtons.Left;
                        break;
                    case (int)HookHelper.WM_MOUSE.WM_RBUTTONDOWN:
                        //case WM_RBUTTONUP: 
                        //case WM_RBUTTONDBLCLK: 
                        button = MouseButtons.Right;
                        break;
                    case (int)HookHelper.WM_MOUSE.WM_MOUSEWHEEL:
                        //button = MouseButtons.Middle;//滚动轮
                        //(value >> 16) & 0xffff; retrieves the high-order word from the given 32-bit value
                        mouseDelta = (short)((mouseHookStruct.MouseData >> 16) & 0xffff);
                        break;
                }

                int clickCount = 0;//点击数
                if (button != MouseButtons.None)
                {
                    if ((int)wParam == (int)HookHelper.WM_MOUSE.WM_LBUTTONDBLCLK || (int)wParam == (int)HookHelper.WM_MOUSE.WM_RBUTTONDBLCLK)
                    {
                        clickCount = 2;//双击
                    }
                    else
                    {
                        clickCount = 1;//单击
                    }
                }

                //鼠标事件传递数据
                MouseEventArgs e = new MouseEventArgs(button, clickCount, mouseHookStruct.Point.X, mouseHookStruct.Point.Y, mouseDelta);

                //重写事件
                OnMouseActivity(this, e);
            }

            return Win32API.CallNextHookEx(hHook, nCode, wParam, lParam);
        }

        /// <summary>
        /// 键盘钩子处理函数
        /// </summary>
        /// <param name="code"></param>
        /// <param name="wParam"></param>
        /// <param name="lParam"></param>
        /// <returns></returns>
        private int KeyboardProc(int nCode, IntPtr wParam, IntPtr lParam)
        {
            try
            {
                if (nCode < (int)HookHelper.WH_Codes.HC_ACTION)
                {
                    return Win32API.CallNextHookEx((IntPtr)khook, nCode, wParam, lParam);
                }

                HookHelper.KeyboardHookStruct keyHookStruct = (HookHelper.KeyboardHookStruct)Marshal.PtrToStructure(lParam, typeof(HookHelper.KeyboardHookStruct));

                #region
                //if ((int)wParam == (int)Keys.C && ((int)lParam & (int)Keys.ControlKey) != 0 ||//Ctrl+C
                //    (int)wParam == (int)Keys.X && ((int)lParam & (int)Keys.ControlKey) != 0)//Ctrl+V
                //{
                //    MessageBox.Show("C||V");
                //}

                //if (lParam.ToInt32() > 0)//捕获键盘按下
                //{
                //    Keys keys = (Keys)wParam;
                //    MessageBox.Show("键盘按下");
                //}
                //if (lParam.ToInt32() < 0)//捕获键盘抬起
                //{
                //    MessageBox.Show("键盘抬起");
                //}
                /**************** 
                 //全局键盘钩子判断是否按下键 
                 wParam = = 0x100 // 键盘按下 
                 wParam = = 0x101 // 键盘抬起 
                ****************/
                //return 0;//如果返回1,则结束消息,消息截止,不再传递。如果返回0或调用CallNextHookEx函数,消息出这个钩子继续往下传递。
                #endregion

            }
            catch
            {

            }

            return Win32API.CallNextHookEx(khook, nCode, wParam, lParam);
        }
    }
}

如果不好理解,将键盘、鼠标操作分离为两个文件分别封装:KeyHook.cs和MouseHook.cs
KeyHook.cs文件:

View Code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace TestHook.MyHook
{
    class KeyHook
    {
        //定义钩子处理函数
        private Win32API.HookProc KeyboardProcDelegate = null;
        //定义钩子句柄
        private IntPtr khook;
        //定义键盘事件
        public event KeyEventHandler OnKeyDown;

        /// <summary>
        /// 安装钩子
        /// </summary>
        public void InstallHook()
        {
            if (khook == IntPtr.Zero)
            {
                uint id = Win32API.GetCurrentThreadId();
                this.KeyboardProcDelegate = new Win32API.HookProc(this.KeyboardProc);
                khook = Win32API.SetWindowsHookEx((IntPtr)HookHelper.WH_Codes.WH_KEYBOARD_LL, this.KeyboardProcDelegate, IntPtr.Zero, id);
            }
        }

        /// <summary>
        /// 卸载钩子
        /// </summary>
        public void UnInstallHook()
        {
            bool isSuccess = false;
            if (khook != IntPtr.Zero)
            {
                isSuccess=Win32API.UnhookWindowsHookEx(khook);
                this.khook = IntPtr.Zero;
            }
            if (isSuccess)
            {
                MessageBox.Show("卸载成功!");
            }
            else
            {
                MessageBox.Show("卸载失败!");
            }
        }

        /// <summary>
        /// 键盘钩子处理函数
        /// </summary>
        /// <param name="code"></param>
        /// <param name="wParam"></param>
        /// <param name="lParam"></param>
        /// <returns></returns>
        private int KeyboardProc(int nCode, IntPtr wParam, IntPtr lParam)
        {
            try
            {
                if (nCode < (int)HookHelper.WH_Codes.HC_ACTION)
                {
                    return Win32API.CallNextHookEx((IntPtr)khook, nCode, wParam, lParam);
                }

                HookHelper.KeyboardHookStruct keyHookStruct = (HookHelper.KeyboardHookStruct)Marshal.PtrToStructure(lParam, typeof(HookHelper.KeyboardHookStruct));

                #region
                //if ((int)wParam == (int)Keys.C && ((int)lParam & (int)Keys.ControlKey) != 0 ||//Ctrl+C
                //    (int)wParam == (int)Keys.X && ((int)lParam & (int)Keys.ControlKey) != 0)//Ctrl+V
                //{
                //    MessageBox.Show("C||V");
                //}

                //if (lParam.ToInt32() > 0)//捕获键盘按下
                //{
                //    Keys keys = (Keys)wParam;
                //    MessageBox.Show("键盘按下");
                //}
                //if (lParam.ToInt32() < 0)//捕获键盘抬起
                //{
                //    MessageBox.Show("键盘抬起");
                //}
                /**************** 
                 //全局键盘钩子判断是否按下键 
                 wParam = = 0x100 // 键盘按下 
                 wParam = = 0x101 // 键盘抬起 
                ****************/
                //return 0;//如果返回1,则结束消息,消息截止,不再传递。如果返回0或调用CallNextHookEx函数,消息出这个钩子继续往下传递。
                #endregion  
                bool handled = false;
                if (this.OnKeyDown != null && (wParam == (IntPtr)HookHelper.WM_KEYBOARD.WM_KEYDOWN|| wParam == (IntPtr)HookHelper.WM_KEYBOARD.WM_SYSKEYDOWN))
                {
                    Keys keyData = (Keys)keyHookStruct.VKCode;
                    KeyEventArgs e = new KeyEventArgs(keyData);
                    OnKeyDown.Invoke(this, e);
                    handled = e.Handled;
                }

                if (handled)
                    return -1;

                return Win32API.CallNextHookEx(khook, nCode, wParam, lParam);
            }
            catch
            {

            }

            return Win32API.CallNextHookEx(khook, nCode, wParam, lParam);
        }
    }
}

MouseHook.cs文件:

View Code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace TestHook.MyHook
{
    public class MouseHook
    {
        #region 定义变量
        //定义钩子处理函数
        private Win32API.HookProc MouseHookProcedure;
        //定义钩子句柄
        private IntPtr hHook = IntPtr.Zero;
        //定义鼠标事件
        public event MouseEventHandler OnMouseActivity;
        #endregion

        /// <summary>
        /// 安装鼠标钩子
        /// </summary>
        public void InstallHook()
        {
            if (hHook == IntPtr.Zero)
            {
                uint id = Win32API.GetCurrentThreadId();
                this.MouseHookProcedure = new Win32API.HookProc(this.MouseHookProc);
                //这里挂节钩子
                hHook = Win32API.SetWindowsHookEx((IntPtr)HookHelper.WH_Codes.WH_MOUSE_LL, MouseHookProcedure, IntPtr.Zero, id);
            }
        }

        /// <summary>
        /// 卸载鼠标钩子
        /// </summary>
        public void UnInstallHook()
        {
            bool isSuccess = false;
            if (this.hHook != IntPtr.Zero)
            {
                isSuccess = Win32API.UnhookWindowsHookEx(hHook);
                this.hHook = IntPtr.Zero;
            }
            if (isSuccess)
            {
                MessageBox.Show("卸载成功!");
            }
            else
            {
                MessageBox.Show("卸载失败!"); 
            }
        }

        /// <summary>
        /// 鼠标钩子处理函数
        /// </summary>
        /// <param name="nCode"></param>
        /// <param name="wParam"></param>
        /// <param name="lParam"></param>
        /// <returns></returns>
        private int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)
        {
            if (nCode < (int)HookHelper.WH_Codes.HC_ACTION)
            {
                return Win32API.CallNextHookEx(hHook, nCode, wParam, lParam);
            }

            if (OnMouseActivity != null)
            {
                //Marshall the data from callback.
                HookHelper.MouseHookStruct mouseHookStruct = (HookHelper.MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(HookHelper.MouseHookStruct));
                MouseButtons button = MouseButtons.None;
                short mouseDelta = 0;
                switch ((int)wParam)
                {
                    case (int)HookHelper.WM_MOUSE.WM_LBUTTONDOWN:
                        //case WM_LBUTTONUP: 
                        //case WM_LBUTTONDBLCLK:
                        button = MouseButtons.Left;
                        break;
                    case (int)HookHelper.WM_MOUSE.WM_RBUTTONDOWN:
                        //case WM_RBUTTONUP: 
                        //case WM_RBUTTONDBLCLK: 
                        button = MouseButtons.Right;
                        break;
                    case (int)HookHelper.WM_MOUSE.WM_MOUSEWHEEL:
                        //button = MouseButtons.Middle;//滚动轮
                        //(value >> 16) & 0xffff; retrieves the high-order word from the given 32-bit value
                        mouseDelta = (short)((mouseHookStruct.MouseData >> 16) & 0xffff);
                        break;
                }

                int clickCount = 0;//点击数
                if (button != MouseButtons.None)
                {
                    if (wParam == (IntPtr)HookHelper.WM_MOUSE.WM_LBUTTONDBLCLK || wParam == (IntPtr)HookHelper.WM_MOUSE.WM_RBUTTONDBLCLK)
                    {
                        clickCount = 2;//双击
                    }
                    else
                    {
                        clickCount = 1;//单击
                    }
                }

                //鼠标事件传递数据
                MouseEventArgs e = new MouseEventArgs(button,clickCount,mouseHookStruct.Point.X,mouseHookStruct.Point.Y,mouseDelta);

                //重写事件
                OnMouseActivity(this, e);
            }
           
            return Win32API.CallNextHookEx(hHook, nCode, wParam, lParam);
        }
    }
}

4.对于Hook文件的调用,使用一个WinForm窗体做的测试,鼠标监控按钮、键盘监控按钮、停止监控按钮,一个RichTextBox显示监控日志,一个Label显示鼠标坐标监控:

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 TestHook.MyHook;

namespace TestHook
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private Hook hook = new Hook();//总钩子控制
        private KeyHook keyHook = new KeyHook();//键盘钩子        
        private MouseHook  mouseHook = new MouseHook();//鼠标钩子        

        private void Form1_Load(object sender, EventArgs e)
        {
            hook.OnMouseActivity += new MouseEventHandler(hook_OnMouseActivity);
            mouseHook.OnMouseActivity += new MouseEventHandler(mouseHook_OnMouseActivity);
            keyHook.OnKeyDown += new KeyEventHandler(keyHook_OnKeyDown);
        }

        void keyHook_OnKeyDown(object sender, KeyEventArgs e)
        {
            WriteLog("KeyDown     - " + e.KeyData.ToString());
        }

        void hook_OnMouseActivity(object sender, MouseEventArgs e)
        {
            this.lblMousePosition.Text = string.Format("X:{0} Y={1} Wheel={2}", e.X, e.Y, e.Delta);
            if (e.Clicks > 0)
            {
                WriteLog("MouseButton   -" + e.Button.ToString());
            }
        }
       
        private void btnMouseHook_Click(object sender, EventArgs e)
        {           
            //mouseHook.InstallHook();
            hook.InstallHook(HookHelper.HookType.MouseOperation);
        }

        private void btnKeyHook_Click(object sender, EventArgs e)
        {            
            keyHook.InstallHook();
            //hook.InstallHook(HookHelper.HookType.KeyOperation);
        }

        private void btnUnIntallHook_Click(object sender, EventArgs e)
        {
            //mouseHook.UnInstallHook();
            //keyHook.UnInstallHook();

            hook.UnInstallHook(HookHelper.HookType.KeyOperation);//卸载键盘钩子
            hook.UnInstallHook(HookHelper.HookType.MouseOperation);//卸载鼠标钩子
        }

        private void WriteLog(string message)
        {
            if (string.IsNullOrWhiteSpace(this.richMessage.Text))
            {
                this.richMessage.Text = "监控鼠标和键盘操作记录:" + Environment.NewLine;
            }
            this.richMessage.AppendText(message + Environment.NewLine);
            this.richMessage.SelectionStart = this.richMessage.Text.Length;
        }

        void mouseHook_OnMouseActivity(object sender, MouseEventArgs e)
        {
            this.lblMousePosition.Text = string.Format("X:{0} Y={1} Wheel={2}",e.X,e.Y,e.Delta);
            if (e.Clicks > 0)
            {
                WriteLog("MouseButton   -"+e.Button.ToString());
            }
        }

        private void Form1_FormClosed(object sender, FormClosedEventArgs e)
        {
            hook.UnInstallHook(HookHelper.HookType.KeyOperation);//卸载键盘钩子
            hook.UnInstallHook(HookHelper.HookType.MouseOperation);//卸载鼠标钩子
        }
    }
}

代码整理,模拟数据:来自蓝天旭日的《C#钩子实现简单鼠标键盘的监控和屏蔽 》文章,其示例来自GermanyGeorge Mamaladze的开源代码:
http://www.codeproject.com/KB/cs/globalhook.aspx

 

posted @ 2013-02-27 21:52  SanMaoSpace  阅读(1853)  评论(0编辑  收藏  举报