public RegistrationStateChangedArgs(
	RegState prevState,
	RegState state,
	int statusCode = 0,
	string reason = null,
	RegError error = RegError.NoError
)

Public Sub New ( 
	prevState As RegState,
	state As RegState,
	Optional statusCode As Integer = 0,
	Optional reason As String = Nothing,
	Optional error As RegError = RegError.NoError
)

public:
RegistrationStateChangedArgs(
	RegState prevState, 
	RegState state, 
	int statusCode = 0, 
	String^ reason = nullptr, 
	RegError error = RegError::NoError
)

new : 
        prevState : RegState * 
        state : RegState * 
        ?statusCode : int * 
        ?reason : string * 
        ?error : RegError 
(* Defaults:
        let _statusCode = defaultArg statusCode 0
        let _reason = defaultArg reason null
        let _error = defaultArg error RegError.NoError
*)
-> RegistrationStateChangedArgs