update the QProgressBar

[aloha]

Should using signals and slots not be possible in your case, use events instead - post a custom event to the progress bar and handle the event there changing the value shown by the bar. Also remember not to starve the event loop or you won't see any progress on the bar as it will not update.

Thanks for your reply, i'll check out the events. If I'm correct, using events, I don't have to litter my library code with any qt related code and I just have to send every second (depending on the timer) a custom event to the progressbar.