GtkRange::set_update_policy
Sets the update policy for the range.
Gtk::UPDATE_CONTINUOUS means
that anytime the range slider is moved, the range value will change and
the value_changed signal will
be emitted.
Gtk::UPDATE_DELAYED means
that the value will be updated after a brief timeout where no slider motion
occurs, so updates are spaced by a short time rather than continuous.
Gtk::UPDATE_DISCONTINUOUS
means that the value will only be updated when the user releases the button
and ends the slider drag operation.
See also:
get_update_policy()