title: why PrimaryScreen.Bounds get different Rectangle after user set win 7 dpi
body: <p>In my case, No matter how user change win7 dpi setting，I can always get the correct screen resolution via code <code>PrimaryScreen.Bounds</code>，just as same as what set in the control-panel-display on system of win7.  </p>
  
  <p>But in my colleague's computer, I run the same code just after setting his os's dpi from 100% to 150%. I get a relative bounds result.  </p>
  
  <p>For example, his screen resolution is <strong>1920 * 1080</strong> now, I ran the code after I had set his os dpi from 100% to 150%. Finally I get the resolution is <strong>1280 * 720</strong> by the code <code>PrimaryScreen.Bounds</code>.
  Why this?  </p>
  
  <p>I did this in the same way, but I got a same resolution.</p>