The GTK.Adjustment object represents a value which has an associated
lower and upper bound, together with step and page increments, and
a page size. It is used within several GTK+ widgets, including
GtkSpinButton, GtkViewport, and GtkRange (which is a base class for
GtkHScrollbar, GtkVScrollbar, GtkHScale, and GtkVScale).
The GtkAdjustment object does not update the value itself. Instead
it is left up to the owner of the GtkAdjustment to control the
value.
The owner of the GtkAdjustment typically calls the value_changed()
and changed() functions after changing the value or its
bounds. This results in the emission of the "value_changed" or
"changed" signal respectively.
Signals:
changed
The adjustment changed in some way
value_changed
The value changed
GTK.AccelLabel()->set_accel_widget()