Flash高级应用：用AS3调用摄像头-Flash教程

用as3调用摄像头，代码如下：

package {
import flash.display.Sprite;
import flash.text.*;
import flash.media.Camera;
import flash.events.StatusEvent;
import flash.events.ActivityEvent;
import flash.media.Video;

public class CameraEx extends Sprite
{
private var label:TextField;
private var camera:Camera;

public function CameraEx()
{
label=addLabel(\"CameraEx\");

camera=Camera.getCamera();

if(camera!=null){
camera.addEventListener(StatusEvent.STATUS,statusHandler);
camera.addEventListener(ActivityEvent.ACTIVITY,activityHandler);

var video:Video=new Video(200,200);
video.attachCamera(camera);
addChild(video);
video.x=20;
video.y=20;
}
else{
label.text=\"不能使用\";
}
}

private function statusHandler(evt:StatusEvent):void{
if(camera.muted) label.text=\"不能使用\";
}

private function activityHandler(evt:ActivityEvent):void{
if(evt.activating){
label.text=\"检测开始\";
}
else{
label.text=\"检测停止\";
}
}

private function addLabel(text:String):TextField{
var label:TextField=new TextField();
label.autoSize=TextFieldAutoSize.LEFT;
label.text=text;
addChild(label);
return label;
}
}
}

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