title: PyQt 5 and 4k screen
body: <p>I'm trying to migrate an existing PyQt5 app to high-dpi for window 10.</p>
  
  <p>The documentation of Qt5 itself speak about high-dpi scaling here:
  <a href="http://doc.qt.io/qt-5/highdpi.html" rel="noreferrer">http://doc.qt.io/qt-5/highdpi.html</a></p>
  
  <pre><code>QT_AUTO_SCREEN_SCALE_FACTOR to "1".
  </code></pre>
  
  <p>But i can't adapt this in python code :/</p>
  
  <p>Any idea ?</p>