You are suggesting that the problem is somewhere else then.

This is what happens:

1. When the 2 clients (program) are running in the same machine as the server, then the image is passed successfully.

2. When I run the server and 1 client in Linux, and the other client in Windows, then the program crashes.

When I pass regular text messages, then everything is fine, because the messages are small. I have a "cout<<" in the server that prints IMAGE everytime the payload is greater than 500.

readAll(); is executed everytime a payload arrives, so in the screen I see many IMAGE messages, because the image is large.

I thought that readAll(); will take care of it, but I may be wrong.

Qt Code: 
  1. //   Creates the needed connections 
  2. void ClientThread :: iniConnections()
  3. {
  4.      connect(tcpSocket, SIGNAL(readyRead()), this, SLOT(readData()));
  5.      connect(tcpSocket, SIGNAL(disconnected()), this, SLOT(clientDisconnected()));
  6. }
  7.  
  8.  
  9. //   Reads all incoming data and passes it to the message class
  10. void ClientThread :: readData()
  11. {
  12.      messageIn->clear();
  13.      *messageIn = tcpSocket->readAll();
  14.      if(messageIn->length() >= 500)
  15.      {
  16.           cout << "SCREENSHOT\n";
  17.           remoteClientThread->directScreenshot(*messageIn);
  18.      }
  19.      else
  20.           message->parseMessage(*messageIn);
  21. }
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I know that the problem is in this readAll(); because the image is passed in pieces and the program cannot display those pieces.

How can I collect all the image coming from the remote computer in my QByteArray before passing the image to the label ?