WINDOW PROCESSOR

WINDOW PROCESSOR

PROBLEM TO BE SOLVED: To provide a window processor for reducing the consumption of an off-screen memory without deteriorating the plotting speed of a window. SOLUTION: An off-screen memory deletion window determination part 215 determines the window for deleting an off-screen memory by using histor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ADACHI TAKAO, MUIKAICHI MASAHIRO, HORIUCHI YUUKI, ASO MITSUHIRO
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a window processor for reducing the consumption of an off-screen memory without deteriorating the plotting speed of a window. SOLUTION: An off-screen memory deletion window determination part 215 determines the window for deleting an off-screen memory by using history information managed by a window update history management part 213 and management information managed by the window information management part 213, and a request cache part 218 caches a request for reproducing the image of the deleted window. Thus, it is possible to quickly achieve the regeneration of the off-screen memory. COPYRIGHT: (C)2009,JPO&INPIT