GtkTreeView in gtk2

[Tim O'Brien <timob paradise net nz>]

Hi,

I am trying to use a GtkTreeView / GtkListStore in GTK2 to implement a 
simple list box,is there anyway to easily get the selected position 
(number)in the list from a callback func connected to "cursor_changed" 
signal? (instead of going thru tree_get_selection/selection_get_selecd)


Tim