treeview sorting

["Hubert Sokolowski" <h sokolowski wsisiz edu pl>]

Hi!

I have a treeview with sorting. I need to know in the program which column
is the treeview sorted by and in what order.
I set sorting columns with
gtk_tree_view_column_set_sort_column_id (column, COLUMN_LP);

is there any callback (in gtk 2.4) which gives me informations about which
column is used now in sorting and in what order after a user click on a
column's title?

regards
hs