on 2008-05-02 10:44 AM, Graham Cox at [EMAIL PROTECTED] wrote: > You also need to override -respondsToSelector: and return a logical OR > of your delegate plus the old delegate's response, something like:
I use this techhnique in my PreFab Event Taps Testbench utility. I call this the "delegate server" design pattern. In a general sense, it allows you to control programmatically whether a class "implements" a delegate method. For example, you could have a preference setting in an application that turns the delegate methods on or off, or switches between different sets of delegate methods. The uses for this are probably few, but it served me perfectly for a test utility that is designed to see how a variety of applications handle certain system-level facilities with a variety of delegate method and callback method implementations. -- Bill Cheeseman - [EMAIL PROTECTED] Quechee Software, Quechee, Vermont, USA www.quecheesoftware.com PreFab Software - www.prefabsoftware.com _______________________________________________ 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 [EMAIL PROTECTED]
