title: How to trigger a running windows form app?
body: <p>I have a windows form app (C++) that generates a set of PDF files by using 3rd party software - which creates the PDF files with the provided info from the app.</p>
  
  <p>The question is : How do I suspend the app in a way that it will wait for all
  the PDF files to be generated before generating a new set of files?</p>
  
  <p>I figured that I should make a loop that will check for the amount of PDF files in a specific directory. if the amount of files equals to the amount
  there should be, the loop will be broken and the code continues.
  Just not sure how to do that...</p>
  
  <p>For the record I'm not a programmer, I'm an electrical engineer so
  my knowledge of programming comes down to some basic C++ ...</p>