Display control method and apparatus determining corresponding v

Details Display control method and apparatus determining corresponding v Display control method and apparatus determining corresponding v

1991-12-05

1995-05-02

Bayerl, Raymond J.

Computer graphics processing and selective visual display system

Display driving control circuitry

Controlling the condition of display elements

395159, 395157, 345120, 345119, G06F 314

Patent

active

054127750

ABSTRACT:
A method and apparatus can set validity of the operation for a piece of information to be displayed on a display terminal, such as a displaying, scaling or underwriting operation, and to allow the operation of the displayed information responsive to the information indicating the validity. In the operation of a multi-window controlled screen, a desired screen can be easily displayed closest to the user. Moreover, the information displayed on a screen is divided into a constant unit, and the information indicating validity of the operation is caused to correspond to the divided unit. This information is separately displayed to the user as an icon. Then the overwriting, deleting, moving or scale changing operation, or the like, can be accomplished independently of one another so that a desired document can be easily made. If the invention is applied to an electronic mail system, the document can be easily overwritten.

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