| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |
Arguments: window-or-screen start-position draw-fn erase-fn &optional scroll-p cursor
Performs a "rubber band" operation where the user drags a stretching line that is drawn on stream between start-position and the current mouse cursor position. If the function draw-line is passed as the draw-fn and erase-fn, then get-shape-line will act just like get-line and do a simple rubber-banding. If a fancier sort of rubber-band line is desired, custom functions can be passed in instead. The draw-fn and erase-fn should each take three arguments: the window-or-screen, the start-position, and the mouse-cursor position.
window-or-screen should be a window or the screen.
The screen is the value returned by (screen
*system*)
. See screen and *system*
.
If scroll-p is true then the window will scroll if possible when the user moves the mouse cursor off the side of the window.
If cursor is true, it should
either be a mouse cursor to use during the rubber banding or t to
default to cross-cursor
. The default is t.
See also nget-shape-line.
Copyright (c) 1998-2016, Franz Inc. Oakland, CA., USA. All rights reserved.
This page was not revised from the 8.1 page.
Created 2010.1.21.
| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |