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UIA defines a propertyChagne event for every property. Not sure how that fits here <als> Seems to work. If it has a propertyChange event for every property, then the UA should notify the AT of all property changes in UIA </als> Cynthia to ask UIA expert if UIA implementations should fire an event on every property change.
The current text is ok. I'd like to add a note after the first paragraph. NOTE: In some APIs, AT will only be notified of events to which it has subscribed.