Development system with methods for visual inheritance and improved object reusability

  • US 5,651,108 A
  • Filed: 01/11/1996
  • Issued: 07/22/1997
  • Est. Priority Date: 01/21/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. In a computer system, a method for creating application programs, said method comprising:

  • displaying a form on a screen for placement of screen objects at desired locations at design time;

    receiving user input for placing a first screen object on said form;

    receiving user input for attaching program logic to said first screen object, said program logic specifying program action undertaken upon occurrence of a particular event at said first screen object at runtime;

    receiving user input requesting copying of said first screen object;

    in response to said user input requesting copying of said first screen object, creating a copy of said first screen object in system memory, said copy including a copy of said program logic attached to said first screen object;

    receiving user input requesting pasting of the copy of said first screen object at a desired location; and

    in response to said user input requesting pasting of the copy of said first screen object, pasting a copy of the first screen object by creating a second screen object at said desired location, said second screen object being created from the copy of the first screen object in system memory, wherein said second screen object also includes a copy of said program logic attached to said first screen object.

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