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Object-oriented functionality class library for use in graphics programming

  • US 5,564,048 A
  • Filed: 06/15/1994
  • Issued: 10/08/1996
  • Est. Priority Date: 06/15/1994
  • Status: Expired due to Term
First Claim
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1. A library of class specifications for use in a programming system of a type which specifies objects and classes therefor and which permits class specification by multiple inheritance, the programming system being implemented in a computer system, the library being readable by the programming system, and the library comprising:

  • a first class specification for a first entity class which specifies an entity which is represented by an object anda second class specification for a functionality class which specifies an additional functionality for an object which is an entity of the first entity class, the functionality class being inheritable by a second entity class which also inherits the first entity class,whereby the second entity class may be used in the programming system to specify an object which is an entity of the first entity class and has the additional functionality.

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