public static RtMidiApi [] GetAvailableApis()
{
int enumSize = RtMidi.rtmidi_sizeof_rtmidi_api();
IntPtr ptr = IntPtr.Zero;
int size = RtMidi.rtmidi_get_compiled_api(ref ptr);
ptr = Marshal.AllocHGlobal(size * enumSize);
RtMidi.rtmidi_get_compiled_api(ref ptr);
RtMidiApi [] ret = new RtMidiApi [size];
switch (enumSize)
{
case 1:
byte [] bytes = new byte [size];
Marshal.Copy(ptr, bytes, 0, bytes.Length);
for (int i = 0; i < bytes.Length; i++)
{
ret [i] = (RtMidiApi)bytes [i];
}
break;
case 2:
short [] shorts = new short [size];
Marshal.Copy(ptr, shorts, 0, shorts.Length);
for (int i = 0; i < shorts.Length; i++)
{
ret [i] = (RtMidiApi)shorts [i];
}
break;
case 4:
int [] ints = new int [size];
Marshal.Copy(ptr, ints, 0, ints.Length);
for (int i = 0; i < ints.Length; i++)
{
ret [i] = (RtMidiApi)ints [i];
}
break;
case 8:
long [] longs = new long [size];
Marshal.Copy(ptr, longs, 0, longs.Length);
for (int i = 0; i < longs.Length; i++)
{
ret [i] = (RtMidiApi)longs [i];
}
break;
default:
throw new NotSupportedException("sizeof RtMidiApi is unexpected: " + enumSize);
}
return(ret);
}
