title: how to set Document Types for QTKit in XCode 4?
body: <p>I hope you can help me with my little problem here.</p>
  
  <p>I'm just starting with Cocoa and XCode 4 and I'm working myself through a bunch of tutorials.
  I have one tutorial off the Apple site called "QTKit Application Tutorial"
  ( it can be found here <a href="http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/QTKitApplicationTutorial/BuildingaSimpleMediaPlayerApplication/BuildingaSimpleMediaPlayerApplication.html" rel="nofollow">http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/QTKitApplicationTutorial/BuildingaSimpleMediaPlayerApplication/BuildingaSimpleMediaPlayerApplication.html</a> )</p>
  
  <p>The problem is that this tut covers XCode 3.2 and I can't find the according settings in XCode 4.
  I have my QT Player and I need to tell it which formats and extensions it can open.</p>
  
  <p>In XCode 3, this is done via a few params as described in the tut.
  Can you guys maybe tell me where I can find these settings in XC 4?</p>
  
  <p>any help is strongly appreciated,</p>
  
  <p>best,</p>
  
  <p>Flo</p>