Signal , Slot flow design doubts from newbie

[kpks]

I have a GUI with a slider, dial and 4 graphs; It also sets up a TCP Server. The server in turn sets up a thread to monitor data in the incoming connection and creates a tcpSocket for each input.

How do I let the ReadyRead() signal emitted by the tcpSocket to change the GUI display?
That is, how to flow up the class hierarchy : socket - thread - server - GUI?

Thanks and Regards

kpks