Selective rendering for driver classes

Details Selective rendering for driver classes Selective rendering for driver classes

2006-03-31

2009-11-17

Sajous, Wesner (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

C345S581000, C345S502000, C345S522000, C382S224000, C382S254000, C382S260000, C715S781000

Reexamination Certificate

active

07619622

ABSTRACT:
Described is a filtering mechanism/process that selectively controls whether graphics primitives are provided to a given driver. For example, graphics primitives of an accessibility (e.g., magnification) program may be excluded from being obtained by mirror drivers associated with the accessibility programs, so that the mirror drivers receive only the primitives of unmagnified windows. A registration mechanism allows a program to identify its window as being associated with a class of drivers for filtering, and the drivers may identify themselves as being of the class. By maintaining data that associates windows with a class of drivers, when graphics primitives associated with a registered window are received, a filtering operation be activated to determine which graphics primitives are provided to which driver or drivers. Filtering may be by exclusion to prevent certain primitives from being obtained by excluded drivers, or by inclusion whereby only included drivers receive certain primitives.

REFERENCES:
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patent: 6704021 (2004-03-01), Rogers et al.
patent: 2002/0145611 (2002-10-01), Dye et al.
patent: 2005/0162434 (2005-07-01), Hancocok et al.
patent: 2007/0112476 (2007-05-01), Obradovich

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