[LAD] qt and jack

[Luis Garrido]

> 	jack_set_process_callback(client, process, 0);

I think you should change this to

jack_set_process_callback(client, process, this);

jack will store that pointer to your object and pass it back in the
"process" call.

As things are now, you are getting back that 0 and you are casting
pAudioEngine to NULL.

HTH,

L