double click event in a tree view

[paolo borelli <pborelli katamail com>]

Hi,
        I'm implementing a dialog which contains a list of symbols implemented
with GtkTreeView/GtkListStore.

I've implemented the dialog as a subclass of GtkDialog and the
application runs it with gtk_dialog_run.

Now I want to intercepet if the user double-click on an elemente of the
list so that I can return the proper GTK_RESPONSE.

Looking at the docs it's not clear to me which event should I connect
to. Can someone give me a hint?

Thanks in advance,
        paolo