FontDetector.as

package {
  import flash.display.Sprite;
  import flash.text.Font;
  import flash.text.TextField;
  import flash.text.TextFormat;

  public class FontDetector extends Sprite {

    [SWF(width='640', height='480', backgroundColor='#FFFFFF', frameRate='60', pageTitle="What fonts are on your system?")]
    public function FontDetector():void {
      // http://stackoverflow.com/a/10837614/240418
      for each(var font:Font in Font.enumerateFonts()) {
        var fontSample:TextField = new TextField();
        fontSample.embedFonts = true;
        fontSample.text = font.fontName;
        fontSample.x = 50;
        fontSample.y = 25 * Font.enumerateFonts().indexOf(font);

        var fontFormat:TextFormat = new TextFormat();
        fontFormat.font = font.fontName;
        fontFormat.size = 16;

        fontSample.setTextFormat(fontFormat);

        addChild(fontSample);
      }

      var fontCount:TextField = new TextField();
      fontCount.text = String(Font.enumerateFonts().length);
      fontCount.x = 50;
      fontCount.y = 50;
      addChild(fontCount);
    }
  }
}