title: Get all Users on OS X
body: <p>So I want to implement Parental Controls per user in my app, but I need a way of getting all Users and add them to an NSTableView. These users should be the same displayed by the Login Window, excluding the Other... one and system users.</p>
  
  <p>Any ideas on how to do this? Also, I want to be able to get the selection on that table view and of course change the settings displayed according to that.</p>