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Allegro CL version 8.2
Unrevised from 8.1 to 8.2.
8.1 version

off-color-factor

Arguments: lamp

The value should be a real number between zero and one, inclusive. When the off-color property is nil, an effective off-color is computed by multiplying the red, green, and blue components of the on-color by this number. The default value is 0.5.

For example, suppose:

Then the color displayed when the lamp is off is a medium gray (the result of (make-rgb :red 127 :blue 127 :green 127)) -- the red, green, and blue all (floor (* 255 0.5)) = 127).

See the description of the lamp control.


Copyright (c) 1998-2012, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 8.2. This page was not revised from the 8.1 page.
Created 2010.1.21.

ToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 8.2
Unrevised from 8.1 to 8.2.
8.1 version