C#用滑鼠鉤子屏蔽工作列右鍵快顯功能表

最近遇到需要屏蔽工作列的右鍵快顯功能表問題，小費了番周折，寫出來希望對需要的人有協助。

網上查了半天資料，修改註冊表可以實現，但有個缺點需要重啟機器，甚為不爽。還有用滑鼠鉤子截獲滑鼠右鍵訊息來達到目的，這裡需要注意一點，當滑鼠右鍵釋放時菜單才會彈出（由於開始只截獲了滑鼠按下的訊息，程式一直不靈，一度懷疑用鉤子實現的可能性，哎，細心細心啊）。

關於c#調用Windows API和鉤子的使用，資料很多就不細說了。可以參考

http://blog.csdn.net/LeoMaya/archive/2007/05/18/1615052.aspx

http://blog.csdn.net/wztgq/archive/2006/08/02/1012132.aspx

還有兩個Api的瀏覽器，相當不錯

FoxAPI中文函數瀏覽器V1.5（有詳細的Api函數的說明）

API Explorer V2.82（可以把Api函數轉換成C#和VB.Net代碼）

在Visual Studio 2005中調試通過，工程可在http://download.csdn.net/source/536490下載

 

///Author:danseshi///Email:danseshi@yahoo.com.cn///Bolg:http://blog.csdn.net/danseshi////Date:2008.7.12using System;using System.Windows.Forms;using System.Drawing;using System.Runtime.InteropServices;using System.Diagnostics;namespace MouseHook{    public partial class Form1 : Form    {        #region Fields        private int hMouseHook = 0;        //全域鉤子常量        private const int WH_MOUSE_LL = 14;        //聲明訊息的常量,滑鼠按下和釋放        private const int WM_RBUTTONDOWN = 0x204;        private const int WM_RBUTTONUP = 0x205;        //儲存工作列的矩形地區        private Rectangle taskBarRect;        private Rectangle newTaskBarRect;        //定義委託        public delegate int HookProc(int nCode, int wParam, IntPtr lParam);        private HookProc MouseHookProcedure;        #endregion         #region 聲明Api函數，需要引入空間(System.Runtime.InteropServices)        //尋找合格視窗        [DllImport("user32.dll", EntryPoint = "FindWindow")]        public static extern int FindWindow(            string lpClassName,            string lpWindowName        );        //擷取視窗的矩形地區        [DllImport("user32.dll", EntryPoint = "GetWindowRect")]        public static extern int GetWindowRect(            int hwnd,            ref Rectangle lpRect        );        //安裝鉤子        [DllImport("user32.dll")]        public static extern int SetWindowsHookEx(            int idHook,            HookProc lpfn,            IntPtr hInstance,            int threadId        );        //卸載鉤子        [DllImport("user32.dll", EntryPoint = "UnhookWindowsHookEx")]        public static extern bool UnhookWindowsHookEx(            int hHook        );        //調用下一個鉤子        [DllImport("user32.dll")]        public static extern int CallNextHookEx(            int idHook,            int nCode,            int wParam,            IntPtr lParam        );        //擷取當前線程的標識符        [DllImport("kernel32.dll")]        public static extern int GetCurrentThreadId();        //擷取一個應用程式或動態連結程式庫的模組控制代碼        [DllImport("kernel32.dll")]        public static extern IntPtr GetModuleHandle(string name);        //滑鼠結構，儲存了滑鼠的資訊        [StructLayout(LayoutKind.Sequential)]        public struct MOUSEHOOKSTRUCT        {            public Point pt;            public int hwnd;            public int wHitTestCode;            public int dwExtraInfo;        }        #endregion        public Form1()        {            InitializeComponent();        }        /// <summary>        /// 安裝鉤子        /// </summary>        private void StartHook()        {            if (hMouseHook == 0)            {                hMouseHook = SetWindowsHookEx(WH_MOUSE_LL, MouseHookProcedure, GetModuleHandle(Process.GetCurrentProcess().MainModule.ModuleName), 0);                if (hMouseHook == 0)                {//如果設定鉤子失敗.                     this.StopHook();                    MessageBox.Show("Set windows hook failed!");                }            }        }        /// <summary>        /// 卸載鉤子        /// </summary>        private void StopHook()        {            bool stop = true;            if (hMouseHook != 0)            {                stop = UnhookWindowsHookEx(hMouseHook);                hMouseHook = 0;                if (!stop)                {//卸載鉤子失敗                    MessageBox.Show("Unhook failed!");                }            }        }        private int MouseHookProc(int nCode, int wParam, IntPtr lParam)        {            if (nCode >= 0)            {                //把參數lParam在記憶體中指向的資料轉換為MOUSEHOOKSTRUCT結構                MOUSEHOOKSTRUCT mouse = (MOUSEHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(MOUSEHOOKSTRUCT));//滑鼠                                //這句為了看滑鼠的位置                this.Text = "MousePosition:" + mouse.pt.ToString();                if (wParam == WM_RBUTTONDOWN || wParam == WM_RBUTTONUP)                { //滑鼠按下或者釋放時候截獲                    if (newTaskBarRect.Contains(mouse.pt))                    { //當滑鼠在工作列的範圍內                        //如果返回1，則結束訊息，這個訊息到此為止，不再傳遞。                        //如果返回0或調用CallNextHookEx函數則訊息出了這個鉤子繼續往下傳遞，也就是傳給訊息真正的接受者                        return 1;                    }                }            }            return CallNextHookEx(hMouseHook, nCode, wParam, lParam);        }        #region Events        private void Form1_Load(object sender, EventArgs e)        {            MouseHookProcedure = new HookProc(MouseHookProc);            //taskBarHandle為返回的工作列的控制代碼            //Shell_TrayWnd為工作列的類名            int taskBarHandle = FindWindow("Shell_TrayWnd", null);            //獲得工作列的地區            //有一點要注意，函數返回時，taskBarRect包含的是視窗的左上方和右下角的螢幕座標            //就是說taskBarRect.Width和taskBarRect.Height是相對於螢幕左上方（0，0）的數值            //這與c#的Rectangle結構是不同的            GetWindowRect(taskBarHandle, ref taskBarRect);            this.richTextBox1.Text = "taskBarRect.Location:" + taskBarRect.Location.ToString() + "/n";            this.richTextBox1.Text += "taskBarRect.Size:" + taskBarRect.Size.ToString() + "/n/n";            //構造一個c#中的Rectangle結構            newTaskBarRect = new Rectangle(            taskBarRect.X,            taskBarRect.Y,            taskBarRect.Width - taskBarRect.X,            taskBarRect.Height - taskBarRect.Y            );            this.richTextBox1.Text += "newTaskBarRect.Location:" + newTaskBarRect.Location.ToString() + "/n";            this.richTextBox1.Text += "newTaskBarRect.Size:" + newTaskBarRect.Size.ToString();        }        private void Form1_FormClosing(object sender, FormClosingEventArgs e)        {            this.StopHook();        }        private void button1_Click(object sender, EventArgs e)        {            this.StartHook();            this.button1.Enabled = false;            this.button2.Enabled = true;        }        private void button2_Click(object sender, EventArgs e)        {            this.StopHook();            this.button1.Enabled = true;            this.button2.Enabled = false;        }        #endregion    }}