On Sep 30, 2009, at 6:42 PM, Graham Cox wrote:
I can't actually see an easy way to invoke the callback selector with the signature as given - you need to pass it the document (self), a BOOL and the contextInfo. You can invoke the method directly on the delegate easily enough, but since you're supposed to use the callback supplied, that might not work. The only way I can see to do it is to create an NSInvocation with the selector, set each argument and call invokeWithTarget: passing the delegate.
NSInvocation is the correct way to handle this. See the 10.5 release notes, and search for NSInvocation on that page:
http://developer.apple.com/mac/library/releasenotes/Cocoa/AppKitOlderNotes.html#X10_5NotesThat should bring you to a helpful discussion titled "Advice for Overriders of Methods that Follow the delegate:didSomethingSelector:contextInfo: Pattern."
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
