title: C# PowerPoint 2013 deactivate automatically extended display
body: <p><br/>
  I'm working on a WPF project, for desktop screen capture, and it opens <code>.pptx</code> files. But when I'm about to click on PP13 to open one presentation it automatically extends display to show two views: pc display in presentation helper mode and the other one with the full slides.
  <br/><br/>I know I can disable it through File>Options>Advanced>Display but I'd like to do it with C#. I can't find any way so I hope someone knows if it can be done and has some sort of solution. Is it possible?<br/><br/>
  Thanks in advance!</p>