Returns the object returned by copyWithZone:, where the zone is nil.
Original signature is '- (id)copy'
Available in Mac OS X v10.0 and later.


The object returned by the NSCopying protocol method copyWithZone:, where the zone is nil.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)