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What's an IBAction?
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Addicted to MacNN
Join Date: Nov 2002
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I've just been ignoring all the IBAction returns from my interface-related methods, but can you actually return something from there? I assume not, since the compiler never warns me about lacking a return value. Does anyone know for sure?
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Mac Elite
Join Date: Nov 2003
Location: Minnesota
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Technically, IBAction is really just void. It is really only used as a 'hint' to the compiler.
[EDIT: oops, my bad. Changed null to void, which is what I meant to write, anyway.  ]
(Last edited by Turias; Dec 11, 2003 at 02:53 PM.
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Dedicated MacNNer
Join Date: Aug 2001
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It's actually #defined in NSNibDeclaration.h to be void, so you don't have to return anything from an IBAction method.
It's not a hint to the compiler; rather, it's there so that when Interface Builder parses a .h file, it can determine which methods should be available as "actions" to which you can make connections.
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Mac Elite
Join Date: Nov 2003
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Originally posted by Tim2 at Omni:
It's actually #defined in NSNibDeclaration.h to be void, so you don't have to return anything from an IBAction method.
It's not a hint to the compiler; rather, it's there so that when Interface Builder parses a .h file, it can determine which methods should be available as "actions" to which you can make connections.
That's right. I just read this yesterday, actually, but don't have the book on me. I think my brain is shorting out, again. 
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