Quote Originally Posted by mikrocat View Post
I do not advance the value of the progress. Just setrange(0,0) and it showed me continiously running progressbar once.
That's strange, i've always had to change the value, e.g. with a timer if the processing function doesn't know about the progress bar/dialog

Quote Originally Posted by mikrocat View Post
What do you mean by blocking the thread? Everything is working in one thread. I am able to click the button to interrupt the function, so I do not think that there is anything blocked.
Right, being able to click the button is a good indicator that the thread is not blocked.

Cheers,
_