I Uwe..

Trying to resolve my problem, I rebuild qwt... and my application starts to crash..
Usually I don't off my pc.. I suspend it..
This mornig my windows has had several problems, so I have to restart it!
After all was ok!!!!!!! also the pdf with scalewidget .....

It's possibile??? I'm crazy???
I'm confused because I did not undestand what was the problem!!!
So, I thank you and I hope my next question will be better!