Download image from URL

DownloadImage.cs

public Image DownloadImage(string url)
{
	Image image = null;

	try
	{
		var httpWebRequest = (HttpWebRequest)WebRequest.Create(url);
		httpWebRequest.AllowWriteStreamBuffering = true;
		httpWebRequest.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; rv:2.2) Gecko/20110201";
		httpWebRequest.Referer = "http://www.google.com/";
		httpWebRequest.Timeout = 20000;

		var webResponse = httpWebRequest.GetResponse();
		var webStream = webResponse.GetResponseStream();

		if (webStream != null) image = Image.FromStream(webStream);

		webResponse.Close();
		webResponse.Close();
	}
	catch (Exception)
	{
		return null;
	}

	return image;
}