Possible Duplicate:
Objective C: what is a “(id) sender”?
What is the (id)sender for in:
-(IBAction)action:(id)sender;
Thanks for your help!
Possible Duplicate: Objective C: what is a “(id) sender”? What is the (id)sender for
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Possible Duplicate:
Objective C: what is a “(id) sender”?
What is the (id)sender for in:
-(IBAction)action:(id)sender;
Thanks for your help!
It is whatever object has called the action method; e.g., a button.
You can use the id to check which of a set of buttons called the action, for instance.