Patent ID: 6108717
Filing Date: 2000-08-22
Classification: G06F,G06Q

Abstract:
A control system used in a computer for controlling a point-of-sale peripheral device connected to an interface port of the computer in accordance with a point-of-sale application object, comprising:a first object that provides a point-of-sale peripheral device independent interface to the point-of-sale application object;a second object corresponding to the point-of-sale peripheral device that describes device properties, outputs commands corresponding to methods defined therein and receives asynchronously occurring events from the point-of-sale peripheral device, the device properties and the commands being specific to the point-of-sale peripheral device; andan interface object having:a first function for communicating the device properties and methods between the first object and the second object; anda second function for posting the asynchronously occurring events from the second object to the first object.