AtkValue: AtkValue
In RGtk2: R Bindings for Gtk 2.8.0 and Above

Description Methods and Functions Hierarchy Implementations Detailed Description Structures Author(s) References

The ATK interface implemented by valuators and components which display or select a value from a bounded range of values.

atkValueGetCurrentValue(object)
atkValueGetMaximumValue(object)
atkValueGetMinimumValue(object)
atkValueSetCurrentValue(object, value)

1 2	GInterface +----AtkValue

AtkValue is implemented by AtkNoOpObject.

AtkValue should be implemented for components which either display a value from a bounded range, or which allow the user to specify a value from a bounded range, or both. For instance, most sliders and range controls, as well as dials, should have AtkObject representations which implement AtkValue on the component's behalf. AtKValues may be read-only, in which case attempts to alter the value return FALSE to indicate failure.