Specifying contexts in callback style programming

Details Specifying contexts in callback style programming Specifying contexts in callback style programming

G - Physics

06

F

G06F 9/30 (2006.01) G06F 9/40 (2006.01) G06F 9/48 (2006.01)

Patent

CA 2123924

Abstract Apparatus and methods for specifying contexts for machine-executable instructions. Modern graphical user interface systems employ the callback programming style. In this style, a system event handler responds to an event by executing application-level callback code and providing event information concerning the event as part of the context of the execution. The technique disclosed herein uses callback information names to specify the relationship between the event information and the execution context. The callback information names are defined globally, but represent the event information for a single execution of the callback code. Using the callback information names, it is possible to define the callback code in the function which adds the callback code to the graphical user interface system.

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