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Use of Mouse Button Input to Access Enhanced Graphics Adapter Color Palette

IP.com Disclosure Number: IPCOM000056591D
Original Publication Date: 1988-Jan-01
Included in the Prior Art Database: 2005-Feb-14

Publishing Venue

IBM

Related People

Authors:
Webster, JW [+details]

Abstract

A technique is described whereby a button mouse device, as used in manipulating characterizations in CRT rasters and a software program, provides a method of accessing all sixty-four of the colors available in an enhanced graphics adapter (EGA) color palette. The concept provides the user with greater control of color swatch and granularity selection than previously implemented concepts. The EGA circuits, as used in personal computers, typically assign one of sixty-four possible colors to each of sixteen color registers, so as to efficiently and coherently present the sixty-four color choices to the user. In prior art, a graphics system may use a display menu showing each of the color choices in various swatches. In another method, the user may input a numerical value for the color choice.