public PortEnvoi(MidiManager m, MainActivity act)
{
manager = m;
activity = act;
texte = (TextView)activity.FindViewById <TextView>(Resource.Id.textViewDevice);
manager.RegisterDeviceCallback(this, new Android.OS.Handler());
MidiDeviceInfo[] infos = manager.GetDevices();
foreach (MidiDeviceInfo info in infos)
{
onDeviceAdded(info);
}
manager.OpenDevice(portInfo, this, null);
}