NSURL data for one file or resource.
On Mac OS X v10.6 and later, use writeObjects: to write URLs directly to the pasteboard instead.
On Mac OS X v10.5 and earlier: to write an URL to a pasteboard you use writeToPasteboard: (NSURL); to get an URL from a pasteboard you use URLFromPasteboard: (NSURL).
Available in Mac OS X v10.0 and later.
Declaration Syntax Version Information- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)