public static extern bool InInit(int Device, MidiInProcedure Procedure, IntPtr User = default(IntPtr));
public static extern bool InInit(int device, MidiInProcedure proc, IntPtr user);
public static extern bool InInit(int Device, MidiInProcedure Procedure, IntPtr User = default(IntPtr));
public static extern bool InInit(int device, MidiInProcedure proc, IntPtr user);