C# MixerOpen with Callback function

Question

I am trying to open the sound card mixers with the API:

lRet = mixerOpen(ref hmixer, uMxId, cbFunction, IntPtr.Zero, MIXER_OBJECTF_MIXER
    | CALLBACK_FUNCTION);

where cbFunction is a pointer to a function that will receive the MM_MIXM_LINE_CHANGE and MM_MIXM_CONTROL_CHANGE mixer messages but I am not able to set up such a function.

I have already done a lot of web search without any success and now you are my last hope ...

Answer 1

SOLVED!!!

... after many hours of web search, just as soon as I sent my message, I found this excellent article http://www.codeproject.com/Articles/22953/A-Synchronized-Volume-Control-for-your-Application by Maurice Tarrant; he will always have my warmest Acknowledgments.

Ciao, Maurice, with many thanks again.

Franco