Unity进行桌面截图并上传到服务器

private string uplaodURL = "http://xxx.xxx.xxx.xxx/UploadImage.aspx"; 

	void Start () {
		ScreenShot ();
	}
	public void ScreenShot(){
		StartCoroutine (waitScreenShot());
	}
	IEnumerator waitScreenShot(){
		yield return new WaitForEndOfFrame ();
		//新建2D纹理
		Texture2D texture2D = new Texture2D (400, 200, TextureFormat.RGB24, false);
		//读取屏幕相应的像素点
		texture2D.ReadPixels (new Rect(100, 100, 400, 200), 0, 0, true);
		texture2D.Apply ();
		//2D纹理转成Png图片格式
		byte[] bytes = texture2D.EncodeToPNG ();
		//保存到本地目录
		File.WriteAllBytes (Application.dataPath + "/screenShot.png",bytes);
		//http上传图片到相应服务器
		WWWForm wwwForm = new WWWForm ();
		wwwForm.AddBinaryData ("post", bytes);
		WWW www = new WWW (uplaodURL, wwwForm);
		//启动协程等待服务器返回参数图片URL
		StartCoroutine (postImage (www));
	}

	IEnumerator postImage(WWW www){
		yield return www;
		print(www.text);
		//获取图片的URL生成二维码
		。。。。。
	}