Selective rendering for driver classes
US7619622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2006 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | May 30, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.