System and method for implemeting canvas objects on windowing computer systems
US5806080A · kind A · utility
5Cited by
10References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1996 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Jun 14, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/452
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A separate window is provided for each of multiple OpenDoc Canvas objects, thereby effecting a multiple Canvas-per-compound document design. Possibility of one OpenDoc object drawing in another object's screen area is eliminated by clipping imposed by the Xserver on a perwindow basis. Multiple different X-rendering libraries may be employed for screen imaging. The raw XWindow may be used for direct Xlib drawing functions and other rendering toolkits. Widgets associated with alternative graphical user interfaces may be used as the root of a widget hierarchy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.