Techniques for displaying non-blocking always visible...

Details Techniques for displaying non-blocking always visible... Techniques for displaying non-blocking always visible...

2000-11-20

2008-03-11

Wang, Jin-Cheng (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Graphic manipulation

C345S589000, C345S530000, C345S609000, C345S581000

Reexamination Certificate

active

07342594

ABSTRACT:
A non-blocking always visible display application is provided to copy and save first pixel values corresponding to a first display screen area, blend the copied first pixel values with second pixel values corresponding to a non-blocking always visible display to generate third pixel values, and replace the original first pixel values with the third pixel values to effectuate display of the non-blocking always visible display. In one embodiment, the application further monitors for display operations that impact the first display screen area, and re-blend accordingly. In one embodiment, the re-blending and replacement are advantageously delayed. In another embodiment, the application further intercepts and causes cursor events to be handled properly, based at least in part on a current blending bias between the non-blocking always visible display, and the underlying display windows.

REFERENCES:
patent: 5831615 (1998-11-01), Drews et al.
patent: 5999191 (1999-12-01), Frank et al.
patent: 6002397 (1999-12-01), Jaaskelainen, Jr.
patent: 6072489 (2000-06-01), Gough et al.
All Windows Transparent, Delphion Intellectual Property Network, http://www.delphion.com/tdbs/tdb? &order=94A+61905, Jun. 1994 (1 page).
Transparent Window Selection, Delphion Intellectual Property Network, http://www.delphion.com/tdbs/tdb?&order=88A+60645, Apr. 1988 (3 pages).

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