null()
Creates and initializes a descriptor with no parameter or attribute values set.
Declaration
class func null() -> NSAppleEventDescriptorReturn Value
A descriptor with no parameter or attribute values set, or nil if an error occurs.
Discussion
You don’t typically call this method, as most NSAppleEventDescriptor instance methods can’t be safely called on the returned empty descriptor.
See Also
Creating and Initializing Descriptors
appleEvent(withEventClass:eventID:targetDescriptor:returnID:transactionID:)init(boolean:)init(enumCode:)init(int32:)init(string:)init(typeCode:)list()record()init(listDescriptor:)init(recordDescriptor:)init(aeDescNoCopy:)init(descriptorType:bytes:length:)init(descriptorType:data:)init(eventClass:eventID:targetDescriptor:returnID:transactionID:)