title: Windows scaling
body: <p>Windows 8/10 has started to include a slider for how much GUI elements should scale, right click on desktop -> display. For a colleague with a laptop 4k-screen it's 250% while another colleague using the same resolution on a 4k 28" screen it's 150%.</p>
  
  <p>How do I read that value programmatically? I need to adjust some graphics so it looks the same on all screens.</p>
  
  <p>I'm working in Java on a Eclipse RCP application, but a way that uses C or C++ through JNI works too. I've been looking around but can't find anything.</p>