protected void Init(int devnum) { if (devnum < 0) { return; } if (CallBackFlags != 0 && dCallback == null) { dCallback = new delegCallback(Callback); } Handle = Open(devnum); }
[DllImport("winmm.dll")] private static extern int midiInOpen (ref IntPtr hMidiIn, int uDeviceID, delegCallback dwCallback, int dwInstance, int fdwOpen);