update a row in GtkListStore

[Luka Napotnik <luka napotnik gmail com>]

Hello!

I get my list selection by:
selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(view));
...

The I get the row by:
gtk_tree_model_get (model, &iter, 0, &task_id, -1);

I have intentions to change the task_id. Is there an update function to
store the new value of task_id to the selected row?

Greets,
Luka