Skip to Content
ActionScript for Flash MX: The Definitive Guide, Second Edition
book

ActionScript for Flash MX: The Definitive Guide, Second Edition

by Colin Moock
December 2002
Intermediate to advanced
1088 pages
192h 4m
English
O'Reilly Media, Inc.
Content preview from ActionScript for Flash MX: The Definitive Guide, Second Edition
MovieClip.onUnload() Event Handler
This is the Title of the Book, eMatter Edition
Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved.
Alphabetical Language Reference
|
691
MovieClip.onUnload() Event Handler
callback invoked when the clip is removed from the Stage or when unloadMovie() executes
Flash 5; callback form introduced in Flash 6
mc.onUnload()
onClipEvent (unload) {
statements
}
Description
The onUnload() event handler is the callback form (and more modern analogue) of the
legacy onClipEvent (unload) event handler. The onUnload() event is the opposite of the
onLoad() event; it occurs when
mc expires—that is, it occurs immediately after the last
frame in which
mc is present on stage (but before the first frame in which it is absent). The
onUnload() event does not apply to main movies (e.g.,
_root, _level1, etc.)
The following incidents trigger onUnload():
The playhead reaches the end of the span of frames upon which
mc resides.
mc is removed via the removeMovieClip() function (which deletes clips generated by the
attachMovie() and duplicateMovieClip() functions).
The unloadMovie() function is invoked on
mc.
mc has an external .swf file loaded into it.
This last onUnload() event trigger may seem a little odd, but it is actually a natural result of
the way movies are loaded into Flash. Anytime a .swf or .jpg file is loaded into a movie clip,
the previous contents of that clip are displaced, ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
QuotationMarkI wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
QuotationMarkI’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
QuotationMarkI'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Mark W.
Embedded Software Engineer

You might also like

Essential ActionScript 3.0

Essential ActionScript 3.0

Colin Moock
ActionScript 3.0 Bible

ActionScript 3.0 Bible

Roger Braunstein

Publisher Resources

ISBN: 059600396XCatalog PageErrata