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This object is returned by the GetServces() and GetService() methods on the roUPnPDevice object.
ifUPnPService
Invoke(actionName As String, params As Object) As Integer
Invokes an action asynchronously on the UPnP service. This method returns a transaction ID that can be used to match it against the associated roUPnPActionResult instance.
Subscribe() As Integer
Subscribes to events on the UPnP service asynchronously.
RenewSubscription() As Integer
Resubscribes to events on the UPnP service asynchronously. This method should only be called after calling Subscribe().
GetSID() As String
Returns the subscription ID. This method should only be called after calling Subscribe().
GetTimeout() As Integer
Returns the service timeout period. This method should only be called after calling Subscribe().
ifMessagePort
SetPort(port As roMessagePort)
Specifies the port that will receive events generated by the roUPnPService instance.
ifUserData
SetUserData(user_data As Object)
Sets the user data that will be returned when events are raised.
GetUserData() As Object
Returns the user data that has previously been set via SetUserData(). It will return Invalid if no data has been set.