GtkItem
abstract base class for #GtkMenuItem, #GtkListItem and #GtkTreeItem.
The #GtkItem widget is an abstract base class for #GtkMenuItem, #GtkListItem
and #GtkTreeItem.
The #GtkItem-struct struct contains private data only, and
should be accessed using the functions below.
Emitted when the item is deselected.
@item: the object which received the signal.
Emitted when the item is selected.
@item: the object which received the signal.
Emitted when the item is toggled.
@item: the object which received the signal.
Emits the "select" signal on the given item.
@item: a #GtkItem.
Emits the "deselect" signal on the given item.
@item: a #GtkItem.
Emits the "toggle" signal on the given item.
@item: a #GtkItem.