GtkTreeView: How do I detect right-click?

[Ang Bodhi <angbodhi pacific net sg>]

Hi,

I have a GtkTreeView widget that I would like to detect the mouse
button right-click, how can I do that? In Gtk 1.2, I used to be able
to connect to a button_press_event signal of a GtkTreeItem widget.

Thanks,
Bodhi