On Sep 22, 2016, at 16:52 , Charles Srstka <cocoa...@charlessoft.com> wrote: > > Actually nope, it showed up in 10.3, making it younger than the > target/selector approach.
In that case, I have no plausible rationale why this was done differently. It’s possible there was a performance-related reason. It’s possible it was a design preference on the part of the engineer who introduced the capability. It’s possible it has to do with the ease of overriding the behavior in subclasses. (It’s sometimes awkward to customize the “didEnd”-style behavior.) _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com