| Allegro CL version 10.1 Unrevised from 10.0 to 10.1. 10.0 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) 1998-2022, Franz Inc. Lafayette, CA., USA. All rights reserved.
This page was not revised from the 10.0 page.
Created 2019.8.20.
| Allegro CL version 10.1 Unrevised from 10.0 to 10.1. 10.0 version | ||||||||||