[ASK] QT with TCP protocol in windows??

hai friend, can you give me an example of the networking programs that work at the TCP level?
In Qt example I ever learn a networking program but it an UDP program...

after I read on the internet, it does not guarantee the UDP deliver the data to a destination. so I wanted to create a program with TCP protocol.
but, I still have no reference till now....

can you help me friend. just a simple program send a text but using TCP protocol.....
thanks a lot to every body that read my thread...
I use QT creator 1.3.1 in windows.
thanks for your attention....
I still newbie in QT, I'll appriciate any help...