MACROMEDIA FLASH MX 2004 - ACTIONSCRIPT Reference Manual page 267

Accessibility.isActive()
Availability
Flash Player 6 version 65.
Usage
Accessibility.isActive()
Parameters
None.
Returns
A Boolean value of
player is running in an environment that supports communication between Flash Player and
accessibility aids,
Description
Method; indicates whether an MSAA screen reader program is currently active and the player is
running in an environment that supports communication between Flash Player and accessibility
aids. Use this method when you want your application to behave differently in the presence of a
screen reader.
To determine whether the player is running in an environment that supports accessibility aids, use
System.capabilities.hasAccessibility
Note: If you call this method within about one or two seconds of the first appearance of the Flash
window in which your document is playing, you might get a return value of false even if there is an
active MSAA client. This is because of an asynchronous communication mechanism between Flash
and MSAA clients. You can work around this limitation by ensuring a delay of one to two seconds
after loading your document before calling this method.
See also
Accessibility.updateProperties(), _accProps,
Accessibility.updateProperties()
Availability
Flash Player 6 version 65.
Usage
Accessibility.updateProperties()
Parameters
None.
Returns
Nothing.
if there are active Microsoft Active Accessibility (MSAA) clients and the
true
otherwise.
false
.
System.capabilities.hasAccessibility
Accessibility.updateProperties() 267