title: Accessing UIWindow from AppDelegate.swift in Objective-C file
body: <p>I am working on swift project where I need to use my old <code>Objective-C</code> code.</p>
  
  <p>I did managed to create <code>-Bridge-Header.h</code> file and it works for me.</p>
  
  <p>now in my <code>Objective-C</code> code I need to refer <code>UIWindow</code> from <code>AppDelegate.swift</code>,</p>
  
  <p>Can any one has done this before? </p>
  
  <p>Please guide me!</p>