public static MidiEndpoint GetSource(nint s) => new MidiEndpoint(CoreMidiInterop.MIDIGetSource(s), "Source" + s, false);
public static MidiEndpoint GetSource(nint s) { var ret = CoreMidiInterop.MIDIGetSource(s); return(ret == IntPtr.Zero ? null : new MidiEndpoint(ret, "Source" + s, false, null)); }