May 2001
Intermediate to advanced
720 pages
23h 24m
English
Content preview from ActionScript: The Definitive Guide
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,
O’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.I 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.I’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.I'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.
Appendix C. Backward Compatibility
Flash allows you to
publish .swf files
in a format that is compatible with previous versions of the Player.
By the time you read this, the majority of users will have at least
version 5 of the Flash plug-in, but you may prefer to author for the
Flash 4 plug-in instead. Even if you are authoring exclusively for
Flash 5, this appendix will help you avoid using deprecated
ActionScript and bring you up to speed on the preferred methods in
Flash 5. For statistics on the distribution of various Flash Player
versions, see:
| http://www.macromedia.com/software/flash/survey/whitepaper |
When authoring for Flash 4, use the deprecated techniques (i.e., those that are outdated, but supported for backward compatibility) listed in Table 3.1. See also “Using Flash 5 to Create Flash 4 Content” under “Writing Scripts with ActionScript” in Macromedia’s Flash ActionScript Reference Guide.
Warning
To run scripts in the Flash 4 Player you must set the Version of your
.swf file to Flash 4 under the Flash tab under
File → Publish Settings. All code is disabled if you attempt to
run a Flash 5 or later .swf file in the Flash 4
Player.
Table 3.1 summarizes key backward-compatibility issues and differences between Flash 4 ActionScript and Flash 5 ActionScript.
Table C-1. Backward-Compatibility Issues
|
Topic |
Description |
|---|---|
|
Creating variables |
Flash 4’s |
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
O’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.
I 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.
I’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.
I'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.