title: (UWP) Drawing on image and saving as image/byte array again
body: <p>I've tried a lot of different solutions in the last two days, but can't seem to find the best way. </p>
  
  <p>What I want is:</p>
  
  <pre><code>1. Show image
  2. Enable drawing red lines on image
  3. Save image with lines
  </code></pre>
  
  <p>I've tried Win2D, WriteableBitmapEx, InkCanvas, normal Canvas and the Lumia Imaging SDK, but haven't had luck with at working solution. There is big chance that I'm doing it all wrong, since all those solutions don't work for me. I can't seem to find any good examples that work with UWP though. Anyone know a nice and easy way to do this?</p>
  
  <p>EDIT: I'm developing in C#</p>