Patent · US Expired

Method and apparatus for redrawing transparent windows

US5831615A · kind A · utility

155Cited by
1References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 30, 1996
Grant dateNov 3, 1998
Priority date
Expiry dateApr 30, 2016

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F2203/04804
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A method and apparatus for re-drawing a transparent window on at least one display device of a computer based system having a central processor and a memory is disclosed. Having a transparent window and an underlying second window, it is determined whether the underlying second window is active. If the underlying second window is active, the transparent window is hidden. The underlying second window is re-drawn and the transparent window is shown. Otherwise, the transparent window is maintained.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.