How to detect when GtkTreeView was selected

1. create

GtkTreeView

with the

GtkTreeViewColumn

and

GtkCellRendererText

as normal;
2. get the

GtkTreeSelection

from

GtkTreeView

;
3. connect the

GtkTreeSelection

to the

changed

signal;
4. in the callback, get the

GtkTreeModel

and

GtkTreeIter

from selection with

GtkTreeSelection::get_selected()

;
5. now you can get or set values from model;