contents-ref

Arguments: texture x y

Returns (or sets with setf) the value of the pixel at row x and column y of a texture or a pixmap. The pixel at zero, zero is the top-left pixel.

As noted, contents-ref is setf'able. It is recommended that you use setf and contents-ref rather than contents-set.

Copyright (c) 1998-2009, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 8.1. This page was not revised from the 8.0 page.
Created 2009.7.29.