| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |
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:
nil
white
(red, green, and blue all
255)
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) 1998-2016, Franz Inc. Oakland, CA., USA. All rights reserved.
This page was not revised from the 8.1 page.
Created 2010.1.21.
| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |