8.11 DUIM-Gadgets Module

<value-gadget>

Open abstract class

Summary

The class of gadgets that can have values.

Superclasses

<gadget>

Init-keywords

value:: An instance of type <object>.
value-changed-callback:: An instance of type false-or(<command>, <function>).

Library

duim-gadgets

Module

duim-gadgets

Description

The class of gadgets that can take values.

The value: init-keyword specifies the current gadget value. For tab controls, if the gadget ID is specified, then that is passed as the gadget value whether or not value: is specified.

The value-changed-callback: init-keyword is the callback that is invoked when the gadget value has changed, such as when a scroll bar slug has come to rest after being dragged, or when the changes to text in a text field have been committed by pressing the RETURN key.

Operations

gadget-value gadget-value-changed-callback gadget-value-changed-callback-setter gadget-value-setter gadget-value-type