Consistent and uniform programming interface arrangement and...

Details Consistent and uniform programming interface arrangement and... Consistent and uniform programming interface arrangement and...

G - Physics

06

F

G06F 3/00 (2006.01) G06F 9/44 (2006.01)

Patent

CA 2276636

For use in connection with a computer for processing an assistive technology program, an object in the computer's user interface is provided, the object having one of a predetermined set of roles in the user interface, and the object further being in one of a predetermined set of states. The object has an application programming interface ("API") for facilitating transfer of information between the assistive technology program and the object. The API includes arrangements for enabling the object to provide information in response to calls of a plurality of types including at least A. a name call type, in response to which the object provides information in text form that is useful to an operator; B a description call type, in response to which the object provides information in text form that describes at least one operation performed by the object in the digital computer system; C. a role call type, in response to which the object provides information identifying its role in the user interface; and D. a state call type, in response to which the object provides information identifying its current state. The API further includes arrangements for enabling the object to respond to other types of calls, including indicating (i) whether the object can perform one or more actions, (ii) whether the object has a graphical representation that can be rendered by a video display device,

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