public bool Open()
{
if (this._disposing)
{
return(false);
}
if (this._device != IntPtr.Zero)
{
return(true);
}
this._lastError = Midi.MIDI_OutOpen(ref this._device, this._deviceID, this._midiOutProc, new IntPtr(this._deviceID));
if (this._lastError != MIDIError.MIDI_OK)
{
this._device = IntPtr.Zero;
}
return(this._device != IntPtr.Zero);
}