Associating with an entry in a GtkListStore

[Chris Seaton <chris chrisseaton com>]

I'm using a GtkListStore with a GtkTreeView to show a simple list of 
items. Each item has a text name and binary data. The list just needs to 
show the name - the binary data is stored elsewhere in memory and is 
used when the user selects commands from a menu (I'm making things 
simplier than they are here, but the principle is the same).

The problem is: how do I associate the entry in the list store with my 
binary data? There is no user field for the list store items like with 
the signal handler functions, and there could be more than one item with 
exactly the same name but different binary data so I can't use a hash 
table or something.

I would use the index of the item (from the itterator), but I'm not sure 
to do that, and anyway the indicies would change when the list is sorted 
by clicking on column headers.

Suggestions?

Chris Seaton