The "update policy" of a range widget defines at what points during user interaction it will change the value field of its Adjustment and emit the "value_changed" signal on this Adjustment. The update policies are:
Gtk::UPDATE_CONTINUOUS
This is the default. The "value_changed" signal is emitted continuously, i.e. whenever the slider is moved by even the tiniest amount.
Gtk::UPDATE_DISCONTINUOUS
The "value_changed" signal is emitted once the slider has stopped moving and the user has released the mouse button.
Gtk::UPDATE_DELAYED
The "value_changed" signal is emitted when the user releases the mouse button, or if the slider stops moving for a short period of time.
The update policy of a range widget can be set by using:
Gtk::Range#set_update_policy( update_policy ) Gtk::Range#update_policy=( update_policy )
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