title: How to get pixel color from a Point in image with WriteableBitmapEx in WinRT?
body: <p>I'm porting my current (Silverlight) WP8.0 app to a Universal Windows application. In this application I have a control that allows the user to use a custom dial control. When the dial stops, the app should get the pixel color from that specific point (and underlaying image).</p>
  
  <p>In WP8.0, I used to do the following:</p>
  
  <pre><code>WriteableBitmap wb = new WriteableBitmap(ColorWheelImage, null);
  Color c = wb.GetPixel(pointX, pointY);
  </code></pre>
  
  <p>ColorWheelImage is in the XAML.</p>
  
  <p>In WinRT the WriteableBitmap only support <code>new WriteableBitmap(int pixelWidth, int pixelWidth)</code> and not setting an image like in Silverlight.</p>
  
  <p>How can I fix this.. I can't seem to figure it out :(!</p>
  
  <p>Thanks,
  Niels</p>