Defining Streams in File not in Run-time

From: Linux Man (steven_82m_at_hotmail.com)
Date: 03/23/04 

Date: 23 Mar 2004 05:58:53 -0800

How can I define the inpput or output stream in the prolog file not in the

prolog main window? That's, I want to write "see(myFile)." in the file, not in

run time. But this doesn't work.
I'm using SWI-Prolog