OBJECT-ORIENTED POSITIONAL EVENT TARGETING SYSTEM

摘要

A view system is disclosed which provides an extensible mechanism for grouping two or more windows and manipulating them as a group. The groups provide logical sets of windows for applying operations across address spaces to all the members of the group. The mechanism is implemented as a layer object which includes the linkages to the windows. Polymorphism and extensibility is also provided as part of the object-oriented architecture of the operating system.