Home/ Questions/Q 7562681
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-30T13:28:13+00:00

In order to develop an app remote desktop WP7, I started to with a

  • 0

In order to develop an app remote desktop WP7, I started to with a desktop simple viewer and it works but the problem that not show all actions that I do in Server side, that’s video in YouTube can show you my problem
http://www.youtube.com/watch?v=3q-FumfYsPQ&feature=youtu.be

I use socket connection and I decode and encode my data (images).

This is my code in WP7 client side

    void Conncet(string IP_Address)
    {

        client_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        SocketAsyncEventArgs socketEventArg = new SocketAsyncEventArgs()
        {
            RemoteEndPoint = new IPEndPoint(IPAddress.Parse(IP_Address), 4532)
        };
        socketEventArg.Completed += OnConncetCompleted;
        client_socket.ConnectAsync(socketEventArg);
    }
    void StartReceiving()
    {
            byte[] response = new byte[131072];
            SocketAsyncEventArgs socketEventArg = new SocketAsyncEventArgs();
            socketEventArg.Completed += OnReceiveCompleted;
            socketEventArg.SetBuffer(response, 0, response.Length);
            client_socket.ReceiveAsync(socketEventArg);
    }

    private void ViewReceivedImage(byte[] buffer)
    {
        try
        {
            MemoryStream ms = new MemoryStream(buffer);
            BitmapImage bi = new BitmapImage();
            bi.SetSource(ms);
            MyImage.Source = bi;
            ms.Close();
        }
        catch (Exception) { }
        finally
        {
            StartReceiving();
        }
    }

This is my code in Server side (PC) sending images.

  void StartSending()
    {
        while (!stop)

            try
            {
                Image oldimage = scr.Get_Resized_Image(wToCompare, hToCompare, scr.GetDesktopBitmapBytes());
                //Thread.Sleep(1);
                Image newimage = scr.Get_Resized_Image(wToCompare, hToCompare, scr.GetDesktopBitmapBytes());

                byte[] buffer = scr.GetDesktop_ResizedBytes(wToSend, hToSend);

                float difference = scr.difference(newimage, oldimage);


                if (difference >= 1)
                {

                    SenderSocket.Send(buffer);
                }


            }
            catch (Exception) { }
    }

My question is how can I make the send and receive fast to show the PC screen in WP7 in +/- real time.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    You’ll have to find what’s the bottleneck and speed that up. It could be that the network is not working fast enough. Using compression might be the answer.

    It could be that the WP7 machine is not fast enough to show the images. Sending partial screen images or lower resolution might be a solution.

    It could be that the windows machine is simply not grabbing the images fast enough. Chancing some code around might be the solution. Using partial updates could also help.

    I would go for a solution where every update I would only send one corner (upper left, upper right, lower left, lower right) so the entire stack had to send/recieve smaller blobs of data.

    Be aware that the simulator might add/remove some overhead and show non realistic performance. So don’t optimize the code for the simulator (too much)

    • 0