유용한 getImageFromURL, DownloadRemoteImageFile 함수

private static void DownloadRemoteImageFile(string uri, string fileName)
{
      HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
      HttpWebResponse response = (HttpWebResponse)request.GetResponse();

      if ((response.StatusCode == HttpStatusCode.OK ||
          response.StatusCode == HttpStatusCode.Moved ||
          response.StatusCode == HttpStatusCode.Redirect) &&
          response.ContentType.StartsWith("image", StringComparison.OrdinalIgnoreCase))
         {
          using (Stream inputStream = response.GetResponseStream())
          using (Stream outputStream = File.OpenWrite(fileName))
          {
              byte[] buffer = new byte[4096];
              int bytesRead;
              do
              {
                  bytesRead = inputStream.Read(buffer, 0, buffer.Length);
                  outputStream.Write(buffer, 0, bytesRead);
              } while (bytesRead != 0);
          }
      }
}

public Bitmap getImageFromURL(String sURL)
{
      HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(sURL);
      myRequest.Method = "GET";
      HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
      System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(myResponse.GetResponseStream());
      myResponse.Close();

      return bmp;
}