void OnDefaultDeviceChanged(
	EDataFlow flow,
	ERole role,
	string defaultDeviceId
)

Sub OnDefaultDeviceChanged ( 
	flow As EDataFlow,
	role As ERole,
	defaultDeviceId As String
)

void OnDefaultDeviceChanged(
	EDataFlow flow, 
	ERole role, 
	String^ defaultDeviceId
)

abstract OnDefaultDeviceChanged : 
        flow : EDataFlow * 
        role : ERole * 
        defaultDeviceId : string -> unit