title: Adjusting image parameters in Delphi (Mitov VideoLab)
body: <p>I made a little application in <code>Delphi XE3</code>, using <code>Mitov VideoLab</code>.
  I have <code>VLDSCapture</code> component which captures the video from my webcam.
  Also I have <code>VLDSImageDisplay</code> component to display the captured preview.
  What I want to do, is adjust i.e. Brightness, i.e. on each click of the button to increase Brightness for 10. I can access the <code>VLDSCapture1.Adjustment.Brightness.Value</code>, but when I increase it using this line on button click:</p>
  
  <pre><code>VLDSCapture1.Adjustment.Brightness.Value := VLDSCapture1.Adjustment.Brightness.Value + 30;
  </code></pre>
  
  <p>nothing happens with the captured preview.</p>
  
  <p>Do I need to somehow notify one of these 2 components that there is change of the brightness value or what?</p>
  
  <p>I know this is 3rdparty library, and I have contacted the creator, but haven't received any response.</p>