public IObservable <IMidiMessage> Update(MidiInputDevice device, out bool isOpen)
{
if (device.IsValid())
{
if (device.Value != FDeviceName)
{
var deviceID = (int)device.Tag;
FDeviceName = device.Value;
var midiIn = new MidiInObservable(deviceID);
MidiInObservables = midiIn;
CheckIsOpen = () => midiIn.IsOpen;
}
}
else
{
FDeviceName = null;
MidiInObservables = MidiObservableUtils.DefaultMidiObservable;
CheckIsOpen = () => false;
}
isOpen = CheckIsOpen();
return(MidiInObservables);
}
static MidiObservableUtils()
{
DefaultMidiObservable = new DefaultMidiObservable();
}
