private void midiIn_MessageReceived(object sender, MidiInMessageEventArgs e)
{
if (e.MidiEvent is NoteOnEvent)
{
NoteOnEvent noteOn = (NoteOnEvent)e.MidiEvent;
engine.addActiveMIDIKey(noteOn.NoteNumber);
}
else if (e.MidiEvent is NoteEvent)
{
NoteEvent noteOff = (NoteEvent)e.MidiEvent;
engine.removeActiveMIDIKey(noteOff.NoteNumber);
}
}
