FunctionPackage: cgToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 10.0
Moderate update since the initial 10.0 release.
9.0 version

mouse-wheel-scroll-lines

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. On Windows, this is a global Control Panel setting that defaults to 3. On GTK, Common Graphics arbitrarily always returns 3 because GTK does not appear to have an option for this. 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) 1998-2017, Franz Inc. Oakland, CA., USA. All rights reserved.
This page was not revised from the 9.0 page.
Created 2015.5.21.

ToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 10.0
Moderate update since the initial 10.0 release.
9.0 version