Display image scroll control and method

Details Display image scroll control and method Display image scroll control and method

1992-11-12

1996-01-16

Weldon, Ulysses

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345115, 345127, G09G 534

Patent

active

054851742

ABSTRACT:
Scrolling of work objects displayed on a computer display screen is controlled by a control element window displayed simultaneously on the display screen with the work area which is to be scrolled. A reduced size representation of the overall dimensions of the work object with the work area viewing portion of reduced size superimposed over it are displayed in a second window or display area on the screen. Cursor selection or movement of the reduced size representation of the work area within the representation of the overall work object by cursor selection and dragging or by activation of incremental scrolling or directional scrolling buttons displayed within the second display area, controls the portion of the overall work object displayed within the first display area.

REFERENCES:
patent: 4786897 (1988-11-01), Takanashi et al.
patent: 4823303 (1989-04-01), Terasawa
patent: 4831556 (1989-05-01), Oono
patent: 5187776 (1993-02-01), Yanker
"Microsoft OS/2 Programmer's Reference, vol. 1", Microsoft Corp. 1989, Cover & Title Page, Notices, pp. 54-75, 96, 178, 392-423.
"Microsoft OS/2 Programmer's Reference, vol. 2", Microsoft Corp. 1989, Cover & Title Page, Notices, pp. 55-57, 196-197, 332, 419-420, 424-425, 439, 444, 466.

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