Public MustOverride Function getMessageDeliveryStatus ( _
	mid As MessageId, _
	username As String, _
	password As String _
) As DeliveryStatusInfo()

public abstract DeliveryStatusInfo[] getMessageDeliveryStatus (
	MessageId mid,
	string username,
	string password
)

public:
virtual array<DeliveryStatusInfo^>^ getMessageDeliveryStatus (
	MessageId^ mid, 
	String^ username, 
	String^ password
) abstract