| 摘要 |
<p>In a window and notification based computer system, a browser class, a browser item layout class, a browser item data cell layout class and a browser item class are provided to the window object class hierarchy for applications to provide collection browsers on a display. An application provides a collection browser by creating a browser item layout object, zero or more browser item data cell layout objects, a browser object, and zero or more browser item objects as class instances of the four enumerated classes, and providing procedures for servicing events generated by a user interacting with the objects presented in the collection browser using a cursor control device and/or a keyboard. As a result applications may provide collection browsers in a more efficient and consistent manner. <IMAGE></p> |
