Package	fl.accessibility
Class	public class ButtonAccImpl
Inheritance	ButtonAccImpl LabelButtonAccImpl AccImpl

Language Version :

ActionScript 3.0

Player Version :

Flash Player 9.0.28.0

The ButtonAccImpl class, also called the Button Accessibility Implementation class, enables communication between a Button component and a screen reader. Screen readers are used to translate screen content into synthesized speech or braille for visually impaired users.

The ButtonAccImpl class supports system roles, object-based events, and states.

A Button reports the role ROLE_SYSTEM_PUSHBUTTON (0x2B) to a screen reader.

A Button reports the following states to a screen reader:

• STATE_SYSTEM_NORMAL (0x00000000)
• STATE_SYSTEM_UNAVAILABLE (0x00000001)
• STATE_SYSTEM_FOCUSED (0x00000004)
• STATE_SYSTEM_PRESSED (0x00000008)
• STATE_SYSTEM_FOCUSABLE (0x00100000)

A Button dispatches the following events to a screen reader:

• EVENT_OBJECT_STATECHANGE (0x800A)
• EVENT_OBJECT_NAMECHANGE (0x800C)

The user of a screen reader can activate a button component by using the spacebar or the Enter key.

See also

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enableAccessibility

()

method

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Tue Mar 18 2008, 12:59 PM GMT-07:00