Indicates that the object in question implements some form of ¨typeahead¨ or pre-selection behavior whereby entering the first character of one or more sub-elements causes those elements to scroll into view or become selected.
Subsequent character input may narrow the selection further as long as one or more sub-elements match the string. This state is normally
only useful and encountered on objects that implement Selection. In some cases the typeahead behavior may result in full or partial
¨completion¨ of the data in the input field, in which case these input events may trigger text-changed events from the AtkText
interface. This state supplants ATK_ROLE_AUTOCOMPLETE.