title: Can a NSObject be the delegate of two instances of a class?
body: <p>I have two NSTextfield, and I want to use the same method for each one:</p>
  
  <pre><code>-(void)controlTextDidChange: (id)sender {
  [label setStringValue:[textfield stringValue]];
  }
  </code></pre>
  
  <p>I would like to use a different <code>label/textfield</code> couple depending on which NSTextField send the message. Is this information available in the <code>sender</code> object, or do I have to create a new delegate ?</p>