public static int MidiOutOpen(out HandleMidiOut lphMidiOut, UIntPtr uDeviceId, MidiOutProc dwCallback, UIntPtr dwCallbackInstance) =>
midiOutOpen(
out lphMidiOut,
uDeviceId,
dwCallback,
dwCallbackInstance,
dwCallback == null ? MidiOpenFlags.CALLBACK_NULL : MidiOpenFlags.CALLBACK_FUNCTION & MidiOpenFlags.MIDI_IO_STATUS);
private static extern int midiOutOpen(
out HandleMidiOut lphMidiOut,
UIntPtr uDeviceId,
MidiOutProc dwCallback,
UIntPtr dwCallbackInstance,
MidiOpenFlags dwFlags);
public static extern int midiOutShortMsg(HandleMidiOut hmo, uint dwMsg);
