c# 钩子问题

Question

我用EnumWindows得到了qq每个聊天窗口的句柄，然后得到了他们的进程和进程名，想为每个窗口设置键盘钩子，但是SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId)的参数老是设置错误，请问需要调用全局dll吗？假设句柄参数为：IntPtr hwnd 进程为：int id  

Answer 1

QQ也有钩子，始终比外部的钩子后下，它具有优先权，你的钩子得到的东西是QQ的钩子修改过的，不是真的。

Answer 2

       public  List<WindowInfo> GetAllDesktopWindows()
        {
            List<WindowInfo> wndList = new List<WindowInfo>();            //enum all desktop windows
            EnumWindows(delegate(IntPtr hWnd, int lParam)
            {
                WindowInfo wnd = new WindowInfo();
                StringBuilder sb = new StringBuilder(256);
                //get hwnd
                wnd.hWnd = hWnd;
                //get window name
                GetWindowTextW(hWnd, sb, sb.Capacity);
                wnd.szWindowName = sb.ToString();
                //get window class
                GetClassNameW(hWnd, sb, sb.Capacity);
                wnd.szClassName = sb.ToString();
                //add it into list
                wndList.Add(wnd);
                return true;
            }, 0);            //return wndList.ToArray();
            return wndList;
        }
       void kaishi()
        {
            int i = 0;
            List<WindowInfo> wndList1 = new List<WindowInfo>();
            wndList1 = GetAllDesktopWindows();
            int id=0;
            foreach (WindowInfo one in wndList1)
            {
                i = 0;
                int pid_zhuandao = 0;
                string s1 = "";
                string s2 = one.szClassName.ToString();
                GetWindowThreadProcessId(one.hWnd, out pid_zhuandao);
                foreach (Process thisproc in System.Diagnostics.Process.GetProcesses())
                {
                    if (thisproc.Id == pid_zhuandao)
                    {
                        s1 = thisproc.ProcessName.ToString();
                    }
                }
               if ((one.szWindowName.ToString().IndexOf("交谈") > -1) && (s1 == "QQ"))
               {
                    i = 1;
                    Console.Write(one.hWnd.ToString() + "**** ");
                    Console.Write(s2 + "*****");
                    Console.Write(one.szWindowName.ToString() + "****  ");
                    Console.Write(pid_zhuandao.ToString() + "  *****");
                    Console.WriteLine(s1); ;
                    Console.WriteLine("正在监视   " + one.szWindowName.ToString() + "     窗口");
                    id = pid_zhuandao;            
               }
               if(i==1)
               HookStart(one.hWnd, id);
            }
            Console.ReadKey();
        }
      public void HookStart(IntPtr one, int two)
        {
            if (hKeyboardHook == 0)
            {
                // 创建HookProc实例 
                KeyboardHookProcedure = new HookProc(KeyboardHookProc);
                // 设置线程钩子 
                hKeyboardHook = SetWindowsHookEx(2, KeyboardHookProcedure, one,
               two);
                //textBox1.SelectionStart = textBox1.Text.Length;
                // 如果设置钩子失败 
                if (hKeyboardHook == 0)
                {
                    Console.WriteLine("创建失败");
                    HookStop();
                    //throw new Exception("SetWindowsHookEx failed.");
                }
            }        }

Answer 3

仔细看了下，参数都很正确，只是QQ2008（还是2009？）以后，有反键盘钩子的功能记得印象最深的是，我帮客户装了2009，结果他的手写板写东西上不了QQ（其他程序都可以写出）叫了半天，结果又装回2007给他。如果有疑问，可以试钩下记事本不就明白参数是否正确了？

Answer 4

你还不如动态开启它的聊天记录功能，然后读它的xml