| Allegro CL version 6.2 Unrevised from 6.1 | |||||||||
Arguments:
This function returns the number of lines that a mouse wheel should scroll for each notch that it is rotated, or t if a wheel "roll" of any number of notches should do a page scroll. This is a Windows Control Panel setting that defaults to 3. A custom mouse-wheel method that does scrolling could call this function to help decide how far to scroll.
See also mouse-wheel-present.
Copyright (c) 1998-2002, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 6.2. This page was not revised from the 6.1 page.
Created 2002.2.26.
| Allegro CL version 6.2 Unrevised from 6.1 | |||||||||