title: How to select and unselect a Powerpoint shape
body: <p>I want to know how to select and unselect a Powerpoint shape programatically. I've tried this way to unselect a selected shape, but it doesn't work:</p>
  
  <p>PowerPoint.Shape shape;
  .....</p>
  
  <p>shape.Select(Office.MsoTriState.msoFalse);</p>