Help with workspace

[Michael Lesh]

We are using dirview() to input few data files to our program.
After reading the input I want to stow the dirview from within the
program only. I gues for that I need the Graphics window identifier.
Does anybody know how to get hold of it of a window you haven't
opened, but the system has opened it for you. Any help would be
highly appreciated. please email your replies to goel at cardio.ucsf.edu
ps-- or is there a way to open up a window and have the files 
displayed in it.