title: How to save media element's current frame?
body: <p>I am developing a media player like vlc. One of it's features is saving snapshot during playback. I am able to successfully save the snapshot of any element using rendertargetbitmap class, using the following c# code.</p>
  
  <pre><code>RenderTargetBitmap renderTargetBitmap = new RenderTargetBitmap(); 
  await renderTargetBitmap.RenderAsync(RenderedGrid, width, height); 
  RenderedImage.Source = renderTargetBitmap;
  </code></pre>
  
  <p>But it does not allow to capture media element. Please help me with a workaround. I guess, I am not sure, may it be possible by extracting a thumbnail from a specific position using position of StorageItemThumbnail Class. If even so, it will be a thumbnail not an image of current frame. Someone help please. It is essential feature of my app!</p>