save additional Information in Treestore/Liststore

[Michael Hartmann <michael hartmann as-netz de>]

Hi,

I want to create a list using Liststore that shows information about images 
(filename, filesize, width, height...).
But as a filename isn't unique (e.g. same name for two files in different 
directories), I need to store extra information in Liststore that shouldn't 
be visible for the user in order to distinguish different files with same 
names.

Any ideas?

Thank you.

--Michael