erase-by

Arguments: stream offset

Erases (i.e. replaces with the background color or texture) from stream the line from the current position (see current-position) to the position

(position+ (current-position stream) offset)

offset must be a position object (see make-position). stream should be a cg-stream.

Contrast with draw-by which draws the line on stream.

position+ adds two positions.

Copyright (c) 1998-2008, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 8.0. This page was not revised from the 7.0 page.
Created 2005.12.9.