title: Swift: How can I open a new window clicking a button?
body: <p>I'm new with this programming language and I'd like to create an application that opens a window with some information when I click a button but I don't know how to do that.</p>
  
  <p>I'm not working with storyboards because I read that for professional programming these doesn't work.</p>
  
  <p>I don't want for iOS, I'd like it to be for OS X.</p>
  
  <p>Regards to all!</p>