GtkTreeView data

[Kris Marsh <moogman gmail com>]

Hi,

I'm trying to attach extra information to each row in a list, and then 
retrieve it later on from a row on 
a double click (row_activated) event.
Basically, i've tried:

g_object_set_data(G_OBJECT(&iter_child), "my_info", 
GUINT_TO_POINTER(some_info));

Upon inserting an item into the list and then tried to retrieve it in my 
callback, but it crashes on insert.

1) What should I be trying to link my extra data to? (I assumed the iter 
that comes out from 
gtk_tree_store_append), but could be wrong.

2) How can I do this. Eventually the data is going to be either a char array 
or a pointer to a structure

Thanks in advance,

Kris.