IntPtr   ParenthWnd   =   new   IntPtr(0);   

                IntPtr   EdithWnd   =   new   IntPtr(0);

                IntPtr EdithWnd2 = new IntPtr(0);



            



                //查到窗体，得到整个窗体   

                ParenthWnd   =   FindWindow(null,"TeamViewer");

                //FindChildClassHwnd(hwndParent, IntPtr.Zero);

                //判断这个窗体是否有效   

                if   (!ParenthWnd.Equals(IntPtr.Zero))   

                {   

                      MessageBox.Show( "对话框存在 "); }

                  else 

              {MessageBox.Show( "对话框不存存在 ");} 

                          //得到User   Name这个子窗体，并设置其内容 

                



                EdithWnd = FindWindowEx(ParenthWnd, EdithWnd, "Edit", ""); 

                EdithWnd2 = FindWindowEx(ParenthWnd, EdithWnd, "Edit", null);//获取EDIT句柄 密码

                if (!EdithWnd.Equals(IntPtr.Zero))

                {

                    StringBuilder sb = new StringBuilder(1024);

                    SendMessage(EdithWnd, WM_GETTEXT, sb.Capacity, sb);

                    

                    MessageBox.Show(sb.ToString());

                    SendMessage(EdithWnd2, WM_GETTEXT, sb.Capacity, sb);

         &nbs