k:backing:defer: 
   my-window 
   r 
   (logior  #$NSTitledWindowMask 
            #$NSClosableWindowMask  
            #$NSMiniaturizableWindowMask 
            #$NSResizableWindowMask)
   #$NSBackingStoreBuffered
   #$NO))
    </pre>

    <p>There; the expression to initialize our window object is
    finally complete. We can evaluate it in the Listener to
    initialize the window:</p>

    <pre>
(ns:with-ns-rect (r 100 100 400 300)
  (#/initWithContentRect:styleMask:backing:defer: 
   my-window 
   r 
