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Allegro CL version 10.0
Unrevised from 9.0 to 10.0.
9.0 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.


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This page was not revised from the 9.0 page.
Created 2015.5.21.

ToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 10.0
Unrevised from 9.0 to 10.0.
9.0 version