The flash.system.Capabilities.hasAudio property returns true if the user's system has audio capabilities and false otherwise. : System.Capabilities : Development Flash / Flex / ActionScript examples

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The flash.system.Capabilities.hasAudio property returns true if the user's system has audio capabilities and false otherwise.


 

package{
  import flash.display.Sprite;
  import flash.system.Capabilities;
  public class Main extends Sprite{
    public function Main(){

        // Load a .swf containing sound only if the Player can play audio
        var content:String;
        if (flash.system.Capabilities.hasAudio) {
          content = "sound.swf";
        } else {
          content = "silent.swf";
        }
    }
  }
}