The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 2004
Filed:
Jul. 29, 1999
William Allan Campbell, Dorset, GB;
Wai Yee Peter Wong, Austin, TX (US);
International Business Machines Corporations, Armonk, NY (US);
Abstract
A process and system for blocking unnecessary callbacks to empty paint methods of graphical user interface components is provided. The process initializes a platform-dependent peer class corresponding to a platform-independent class for the graphical user interface component and stores a value representing whether the platform-independent class extends a standard platform-independent class for the graphical user interface component. A platform-dependent paint method determines whether a callback to a paint method is necessary for processing of the paint event. The callback determination is performed by checking the stored value representing the extension of the standard graphics class for the component. If a callback is necessary, then the native paint method initiates a callback to the paint method of the platform-dependent peer object. The native paint method may be implemented in the C++ programming language, and the platform-dependent peer class and the platform-independent class may be implemented in the Java programming language.