Quote Originally Posted by jacek
IMO one should learn one thing at a time. You are right that tutorial authors shouldn't overestimate the readers' knowledge, but you just can't learn 3 different things at the same time (and if you try to do that, you can't blame the author).
I think you are right there. I am trying to read stuff from all over the place, it could hardly be called systematic. My apologies for "firmness of voice".

Do you have #include <QObject> at the beginning of numberholder.h?
No, I did not spot that one. Where was it? Dang sure fixed it real purdy good-like. I wonder whether this tute was so simple that noone ever tried to do it. I would have read it, nodded my head and moved on, it was desperation that drove me to start at the bottom (C++ tute) and do every little step.

Thank you again. The journey continues...