@ChevyRay hi here is my tutorial on regular expressions this is how to verify an email address s/g+.a-Z0-9[]{/gi-?@/f-[a-Z]0-9??/gmail.com (2 days ago)

@TommyRefenes the lengths you'll go to become a metal gear solid boss amaze me (2 days ago)

@shaneneville t.co/9H8F5KlgFA (2 days ago)

@shaneneville well that sounds rad as fuck jfc (2 days ago)

@shaneneville tell me more (tabletop / pen and paper rpg systems are super duper fascinating to me) (2 days ago)

@Fruckert depends on my pace. if I'm working super fast I'll just have a text file in my csproj folder. if I'm slower I'll use trello. (2 days ago)

@ADAMATOMIC I'm not far into this talk yet but do they discuss how most of the costumes make characters look entirely different and incompre (2 days ago)

I'm excited to make games today! *checks task list* Oh right I'm stuck on like 50 bugs I don't know how to solve. (2 days ago)

@ADAMATOMIC just now realizing that I need a giant motivational poster of nasir over my desk at all times (3 days ago)

@obskyr YEAH I was bummed that the Hollow Knight soundtrack turned a bunch of the loops into short songs or arrangements :I (3 days ago)

I humbly request for video game soundtracks to feature more than one loop on the tracks that normally loop in the game~ (ESPECIALLY BOSS TRA (4 days ago)

RT @bitmOO: Hi, I make playful art! :) If you like my work please consider supporting me: 🐮 t.co/dFSRVxbXzf ☕️ t.co/F2hPwao… (4 days ago)

@konjak double your pixels (5 days ago)

@konjak there are a lot of pixels (5 days ago)

freedom~ (yooo cut the 27:30:00) t.co/KoUrCCZAzU (5 days ago)

@GreyAlien that geo is slippery (5 days ago)

@Commanderstitch Just came out a few weeks ago t.co/kZTPFkU0Jx (5 days ago)

I'm completely obsessed with Hollow Knight and it will not let me go until I get that 100% (currently at 26 hours and 96%) THIS GAME IS HUGE (5 days ago)

@floatvoid @eigenbom I really wish we could have like a set of avatars and assign each one per tweet like rpg dialog portraits (6 days ago)

@phubans whyareyoulikethis.jpg (7 days ago)

follow
search

2013 - 5 - 22 / 12:57 pm / tutorials

Disable ESC in Fullscreen on Adobe AIR

Disable ESC in Fullscreen on Adobe AIR

One of the issues with building a desktop application with Adobe AIR is that there is a built in function in the runtime that will cancel any full screen mode when the user pushes the Escape key. This is mostly a functionality of Flash, but it carries over to AIR since AIR is pretty much an extension of the Flash runtime.

Fortunately when you're using the AIR runtime you can actually override the default functionality of the Escape key and keep your application full screen when the user pushes Escape. This came up in Offspring Fling because I was using the Escape key in my UI design. The user pushes Escape to return to the main menu, pause the game, or skip cutscenes, so it was a problem when escape also canceled the game's full screen mode.

The fix for this is super easy and straight forward. First you just need an event listener on the stage for the KEY_DOWN KeyboardEvent.

//listen for key down event and trigger escOverride function
FP.stage.addEventListener(KeyboardEvent.KEY_DOWN, escOverride);

Now here's what the escOverride function looks like.

private function escOverride(e:KeyboardEvent):void {
if (e.keyCode == 27) {
e.preventDefault();
}
}


The keyCode for the Escape key is 27, so whenever a key is pressed the function escOverride is called. If the keyCode was 27, then the preventDefault() function will prevent the default action from being triggered. In this case, it's the "exit fullscreen" action.

There you have it! With just 4 or 5 lines of code total you can prevent your Adobe AIR game from canceling fullscreen when the user pushes Escape. With great power comes great responsibility. (Also note that I believe this is impossible in a normal swf build. The preventDefault() function only works in Adobe AIR.)

8 Comments
Avatar

2013 - 5 - 25 3:54 AM

Fedyfausto

thx a lot Kyle :D i'm waiting your tutorial for bitmapfont

Avatar

2013 - 7 - 10 12:29 PM

Kristian Welsh

Very useful little tidbit there, thank you!

Avatar

2013 - 10 - 20 8:45 AM

Chris

Thanks for the info. Exactly what I needed.

A tiny improvement of the code:
It's a tad better to write:

private function escOverride(e:KeyboardEvent):void {
if (e.keyCode == Keyboard.ESCAPE) {
e.preventDefault();
}
}

... there is a constant to use for this kind of comparison... it should be used.

Avatar

2013 - 10 - 21 3:01 AM

Kyle

Oh nice! I must've missed the keyboard constants at the time I was using this code ;)

Avatar

2014 - 5 - 5 10:53 PM

VB

It doesn't work in Flex MenuBar,
with open submenus!

Avatar

2015 - 1 - 18 4:07 AM

VB

It doesn't work in Flex MenuBar,
with open submenus!

Make menuBar.hight = 0 as it is in real Fullscreen mode and don't bother more about Esc! Then restore later if need.

Avatar

2015 - 7 - 6 12:07 PM

Daniel Benmergui

Well this is useful... thanks from the future, Kyle!

Avatar

2015 - 7 - 6 8:07 PM

Kyle

Haha awesome! I don't know if this still works, it's been many many many years since I've used AIR x_x

Avatar

Post your comment!

POST COMMENT

about

About

Hi! My name's Kyle, and I make video games most of the time in Denver, Colorado. Here you will find my thoughts, games, websites, doodles, and other stuff like that. I worked on Snapshot, Offspring Fling, and a whole bunch of other games. I also created and maintain Otter, a 2d game making framework. If you want to get a hold of me use the form on the bottom of the page, leave a comment, or just tweet at me. I try to post three times a week. Thanks for stoppin' by! You're the coolest.

blog stuff

categories

tags

archives

facebook

videos

Do you want to make a Let's Play of one of my games, or a just a video featuring footage of my games? You have my full permission to do so! Even if you are monetizing your videos, you still have my full permission to use any footage from any of my games. Go for it!

contact

Your message has been sent! Thanks :)
SEND MESSAGE