GtkMenu::get_active
get_active() can be used to
retrieve the currently selected GtkMenuItem
object through the menu. Note that this method returns the menu item
object itself, and is really only useful for comparison against a set
of criteria. In most instances it would be more efficient to connect
the individual menu item's
"activate" signal.
The get_active() method is used
internally in GtkOptionMenu's
set_history() to compare
the menu item currently selected by the user against that previously
displayed.