| Allegro CL version 6.2 Unrevised from 6.1 | |||||||||
Arguments: nil
This function may be used to determine whether the user is trying to initiate a drag, rather than performing a simple click. An application may want to initiate a drag-and-drop in a mouse-left-down method only if this function returns true, for example.
wait-for-drag waits until either the left mouse button is up or until
the mouse moves at least *start-drag-slack*
pixels from where it was when wait-for-drag was called, and then
returns. If the left mouse button was pressed when wait-for-drag was
called and continues to be pressed until the mouse moves at least
*start-drag-slack* pixels, then true is returned;
otherwise nil is returned.
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 | |||||||||