[AS3]定义要缩放的矩形视频播放源代码实例

定义要缩放的矩形，然后设置 Stage.displayState 属性。有关详细信息，请参阅用于 Adobe Flash Platform 的 ActionScript 3.0 参考。完整的示例（如下所示）添加了额外的代码，这些代码创建连接以及视频的 NetStream 对象，并开始播放该视频。

package  
{  
    import flash.net.NetConnection;  
    import flash.net.NetStream;  
    import flash.media.Video;  
    import flash.display.StageDisplayState;  
    import fl.controls.Button;  
    import flash.display.Sprite;  
    import flash.events.MouseEvent;  
    import flash.events.FullScreenEvent;  
    import flash.geom.Rectangle;  
      
    public class FullScreenVideoExample extends Sprite  
    {      
        var fullScreenButton:Button = new Button();  
        var video:Video = new Video();  
  
        public function FullScreenVideoExample()  
        {  
            var videoConnection:NetConnection = new NetConnection();  
            videoConnection.connect(null);  
              
            var videoStream:NetStream = new NetStream(videoConnection);  
            videoStream.client = this;  
  
            addChild(video);  
              
            video.attachNetStream(videoStream);  
              
            videoStream.play("http://www.helpexamples.com/flash/video/water.flv");  
              
            fullScreenButton.x = 100;  
            fullScreenButton.y = 270;  
            fullScreenButton.label = "Full Screen";  
            addChild(fullScreenButton);  
            fullScreenButton.addEventListener(MouseEvent.CLICK, fullScreenButtonHandler);  
        }  
  
        private function fullScreenButtonHandler(event:MouseEvent)  
        {   
            var screenRectangle:Rectangle = new Rectangle(video.x, video.y, video.width, video.height);  
            stage.fullScreenSourceRect = screenRectangle;  
            stage.displayState = StageDisplayState.FULL_SCREEN;   
        }      
          
        public function onMetaData(infoObject:Object):void  
        {  
            // stub for callback function  
        }  
    }  
}