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Invoking a Callback Selector (Newbie question)

Hi guys,

I'm overriding the function

- (void)canCloseDocumentWithDelegate:(id)delegate shouldCloseSelector:(SEL)shouldCloseSelector contextInfo:(void *)contextInfo

If the document should be closed, I'm supposed to invoke the shouldCloseSelector callback method with the signature:

- (void)document:(NSDocument *)doc shouldClose:(BOOL)shouldClose contextInfo:(void *)contextInfo

This may be a simple question -- but I can't find any examples of invoking a selector with three arguments. I've found examples of (performSelector:withObject:withObject:). All the different approaches I've tried have failed so far, so any help will be appreciated.

Thanks to anyone that can get me out of this brain dead moment..

Mark Munz
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