void gtk_list_box_row_changed ( GtkListBoxRow* row )
row as changed, causing any state that depends on this
to be updated.
This affects sorting, filtering and headers.
Note that calls to this method must be in sync with the data
used for the row functions. For instance, if the list is
mirroring some external data set, and two rows changed in the
external data set then when you call
on the first row the sort function must only read the new data
for the first of the two changed rows, otherwise the resorting
of the rows will be wrong.
This generally means that if you don’t fully control the data
model you have to duplicate the data that affects the listbox
row functions into the row widgets themselves. Another alternative
is to call
gtk_list_box_invalidate_sort() on any model change,
but that is more expensive.