title: AVFoundation, AVCaptureMetadataOutput capturing screenshot
body: <p>I am using <code>AVCaptureMetadataOutput</code> in order to use iOS QRCode,barcode scanning feature. This works well, and I get the result of scanning through <code>AVCaptureMetadataOutput</code> delegate method</p>
  
  <pre><code>-(void)captureOutput:(AVCaptureOutput *)captureOutput didOutputMetadataObjects:(NSArray *)metadataObjects fromConnection:(AVCaptureConnection *)connection{
  </code></pre>
  
  <p>But I don't know how to capture the image of scanned qrcode,barcode with the data I have in this delegate.</p>