help in QT network!

hi..im develop small program client and server.
the client auto sending the file after executed.
Each time i run the file i have to click connect and enter ipaddress and port to connect to a server.
my Question: how to do after i set ip and port for server, it will save into a text file.
and i juz need to copy the text file to the client folder and run the client.The client then will connect directly to the server through the txt file contain ipaddress and port given.

No need to save it to a file.
See QSettings. It supports applciations-wide settings serialization and it is portable.

thx for da info..
any sample that can i use related to this event?

See the QSettings documentation in the Assistant.