สอบถามเรื่องการเขียนโปรแกรม remote desktop ครับ...

  public static class User32
        {
            public const Int32 CURSOR_SHOWING = 0x00000001;

            [StructLayout(LayoutKind.Sequential)]
            public struct ICONINFO
            {
                public bool fIcon;
                public Int32 xHotspot;
                public Int32 yHotspot;
                public IntPtr hbmMask;
                public IntPtr hbmColor;
            }

            [StructLayout(LayoutKind.Sequential)]
            public struct POINT
            {
                public Int32 x;
                public Int32 y;
            }

            [StructLayout(LayoutKind.Sequential)]
            public struct CURSORINFO
            {
                public Int32 cbSize;
                public Int32 flags;
                public IntPtr hCursor;
                public POINT ptScreenPos;
            }

            [DllImport("user32.dll")]
            public static extern bool GetCursorInfo(out CURSORINFO pci);

            [DllImport("user32.dll")]
            public static extern IntPtr CopyIcon(IntPtr hIcon);

            [DllImport("user32.dll")]
            public static extern bool DrawIcon(IntPtr hdc, int x, int y, IntPtr hIcon);

            [DllImport("user32.dll")]
            public static extern bool GetIconInfo(IntPtr hIcon, out ICONINFO piconinfo);
        }

static void Main(string[] args)
        {
            Socket socket;
            string _ip = File.ReadAllText("getIP.txt");


            Console.WriteLine(_ip);

            using (socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp))
            {
                //socket.Connect(new IPEndPoint(IPAddress.Loopback, 23456));
                socket.Connect(_ip,9050);
                
                while (true)
                {
                    var bounds = Screen.PrimaryScreen.Bounds;
                    var bitmap = new Bitmap(bounds.Width, bounds.Height);
                    try
                    {
                        while (true)
                        {
                            using (var graphics = Graphics.FromImage(bitmap))
                            {
                                graphics.CopyFromScreen(bounds.X, 0, bounds.Y, 0, bounds.Size);

                                ////////////////////////////////////////
                                User32.CURSORINFO cursorInfo;
                                cursorInfo.cbSize = Marshal.SizeOf(typeof(User32.CURSORINFO));

                                if (User32.GetCursorInfo(out cursorInfo))
                                {
                                    // if the cursor is showing draw it on the screen shot
                                    if (cursorInfo.flags == User32.CURSOR_SHOWING)
                                    {
                                        // we need to get hotspot so we can draw the cursor in the correct position
                                        var iconPointer = User32.CopyIcon(cursorInfo.hCursor);
                                        User32.ICONINFO iconInfo;
                                        int iconX, iconY;

                                        if (User32.GetIconInfo(iconPointer, out iconInfo))
                                        {
                                            // calculate the correct position of the cursor
                                            iconX = cursorInfo.ptScreenPos.x - ((int)iconInfo.xHotspot);
                                            iconY = cursorInfo.ptScreenPos.y - ((int)iconInfo.yHotspot);

                                            // draw the cursor icon on top of the captured screen image
                                            User32.DrawIcon(graphics.GetHdc(), iconX, iconY, cursorInfo.hCursor);

                                            // release the handle created by call to g.GetHdc()
                                            graphics.ReleaseHdc();
                                        }
                                    }
                                }
                                ////////////////////////////////////////

                            }
                            byte[] imageData;
                            using (var stream = new MemoryStream())
                            {
                                bitmap.Save(stream, ImageFormat.Png);
                                imageData = stream.ToArray();
                            }
                            var lengthData = BitConverter.GetBytes(imageData.Length);
                            if (socket.Send(lengthData) < lengthData.Length) break;
                            if (socket.Send(imageData) < imageData.Length) break;
                            Thread.Sleep(10);
                        }
                    }
                    catch(Exception)
                    {
                        //socket.Shutdown(SocketShutdown.Both);
                       // socket.Close();
                        break;
                    }

                }
            }
            Application.Exit();
        }