title: Keychain API in ObjectiveC, not C?
body: <p>I'm new to Cocoa and ObjectiveC and I'm writing a basic programme that uses a web service to login a user in to a website. I want to store the credentials in the Keychain and I've come across SecKeychainFindGenericPassword in the Keychain API. It's exactly what I need, but the example is written in C, not ObjectiveC!</p>
  
  <p>I've tried invoking it like this: [SecKeychainFindGenericPassword .. and the autocomplete suggests all the parameters, but the types are const char <em>, not NSString</em>!</p>
  
  <p>Can this function be used in ObjectiveC too? Can someone please show me a line of ObjectiveC that calls this function?</p>
  
  <p>Thank you!</p>
  
  <p>x</p>