public MidiSystem()
{
//input devices
int deviceID;
uint incount = midiInGetNumDevs();
inputDevices = new List <InputDevice>();
MIDIINCAPS inCaps = new MIDIINCAPS();
for (deviceID = 0; deviceID < incount; deviceID++)
{
MMRESULT result = midiInGetDevCaps(deviceID, ref inCaps, Marshal.SizeOf(inCaps));
//if we get an error, just skip the device
if (result == MMRESULT.MMSYSERR_NOERROR)
{
InputDevice indev = new InputDevice(deviceID, inCaps.szPname);
inputDevices.Add(indev);
}
}
//output devices
uint outcount = midiOutGetNumDevs();
outputDevices = new List <OutputDevice>((int)outcount);
MIDIOUTCAPS outCaps = new MIDIOUTCAPS();
for (deviceID = 0; deviceID < outcount; deviceID++)
{
MMRESULT result = midiOutGetDevCaps(deviceID, ref outCaps, Marshal.SizeOf(outCaps));
//if we get an error, just skip the device
if (result == MMRESULT.MMSYSERR_NOERROR)
{
OutputDevice outdev = new OutputDevice(deviceID, outCaps.szPname);
outputDevices.Add(outdev);
}
}
}
static extern MMRESULT midiInGetDevCaps(int uDeviceID, ref MIDIINCAPS caps, int cbMidiInCaps);