Full Screen in ActionScript 3

I’ve gotten several hits from search engines with the keywords “Full Screen” and I don’t have anything on here that actually shows how to do full screen. It’s pretty easy. Here is the code:

import flash.display.StageDisplayState;

function goFullScreen():void
{
    if (stage.displayState == StageDisplayState.NORMAL) {
        stage.displayState=StageDisplayState.FULL_SCREEN;
    } else {
        stage.displayState=StageDisplayState.NORMAL;
    }
}

stage.addEventListener(MouseEvent.CLICK, _handleClick)

function _handleClick(event:MouseEvent):void
{
    goFullScreen();
}

This code is pretty simple. What it does is make the Flash movie go full screen when you click anywhere on the stage. This could easily be tweaked so that it responds to a button click.

Keep in mind that this will only work when you view this in the browser. It’s doesn’t work when compiled inside of Flash CS3.

One thing you want to make sure of is that your embed code has the
<param name=”allowFullScreen” value=”true” /> tag in the param tags list as well as the allowFullScreen as an attribute in the embed tag. Here is an example:

<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" width="550" height="400" id="Untitled-3" align="middle">
<param name="allowScriptAccess" value="sameDomain" />
<font color="#0000FF"><param name="allowFullScreen" value="true" /></font>
<param name="movie" value="Untitled-3.swf" /><param name="quality" value="high" /><param name="bgcolor" value="#ffffff" />	<embed src="Untitled-3.swf" quality="high" bgcolor="#ffffff" width="550" height="400" name="Untitled-3" align="middle" allowScriptAccess="sameDomain" allowFullScreen="true" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />
</object>

Let’s Build a Flash Video Player

For those who are interested, the next few tutorials that I will create will be based on building a custom Flash video player from scratch. I will cover topics such as packages, classes, inheritance, and full screen, so stay tuned.