Posted when a file operation has been performed in the receiving application.
The notification object is the shared NSWorkspace instance. The userInfo dictionary contains a key @"NSOperationNumber" with a NSNumber object containing an integer indicating the type of file operation
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)