The update policy of a Range
widget defines at what points during
user interaction it will change the value
field of its
Gtk::Adjustment
and emit the valuechanged
signal. The update policies, set with the set_update_policy()
method, are:
Gtk::UPDATECONTINUOUS
- This is the default. The
valuechanged
signal is emitted continuously, i.e. whenever the
slider is moved by even the tiniest amount.
Gtk::UPDATEDISCONTINUOUS
- The valuechanged
signal is
only emitted once the slider has stopped moving and the user has
released the mouse button.
Gtk::UPDATEDELAYED
- The valuechanged
signal is emitted
when the user releases the mouse button, or if the slider stops moving
for a short period of time.