Text File Configurations

I was looking through the sample forms and found the connection.gfd form.  It 
looks good and works well, but I need a little help understanding how it 
works.  

I can see that it reads the file directly, because the form started with my 
customized settings.  I just don't see how it understands the sections and 
variables.  I don't see how it reads the file into the form, or how it writes 
the form variables back to the file.

The reason I ask is because I would like to use gnue-forms to make a 
configuration program for other programs, like Asterisk, Apache, Kolab 
server, and some others.  

Thanks in advance.
-- 
Christopher Lewis
[email protected]
Office (360) 968-1606
Fax (707) 598-2550