title: Get file name which is currently open in windows directory
body: <p>I am developing file monitoring application in WPF and C#. Now i want to monitor files from given directory while my application running in background. I am going to provide directory name at the first time. Then i want to monitor files from that directory whether they are open or currently accessing or modified.</p>
  
  <p>Is it possible in WPF? Is there any link?</p>