private void Button_Click_1(object sender, RoutedEventArgs e)

        {

            richHandle = IntPtr.Zero;

            EnumWindows(EnumFunc, 0);

            if (richHandle == IntPtr.Zero)

                return;

            Console.WriteLine(Process_ReadRichEditText(richHandle));

        }



        public bool EnumFunc(IntPtr hwnd, int lParam)

        {

            if (!IsWindowVisible(hwnd))

                return true; // 不可见 



            StringBuilder vBuffer = new StringBuilder(256);

            GetClassName(hwnd, vBuffer, vBuffer.Capacity);

            string name = vBuffer.ToString();

            if (vBuffer.ToString() == "TXGuiFoundation")

            {

                uint vProcessId;



                GetWindowThreadProcessId(hwnd, out vProcessId);

                var nameid = GetProcessName(vProcessId).ToLower();

                if (GetProcessName(vProcessId).ToLower() == "qq.exe")

                {

                    GetWindowText(hwnd, vBuffer, vBuffer.Capacity);

                    // 标题中含"聊天中" 

                    if (vBuffer.ToString().IndexOf("杜老师") >= 0)

                    {

                        //在这里应该是要找这个窗体里面的控件才对啊？为什么这里是枚举他的子窗口？

                        //还有他这里不会进入@EnumChild方法，我想是因为他找不到这个子窗口的原因？

                        //那这里怎么来枚举这个窗体的所有控件呢? 

          &