is it possible to relate a QprogressDialog or a QProgressBar to a thread's execution?

[wysota]

Are you sure you don't have to do anything else?
I might remember incorrectly but setting the range 0,0 is only switching the mode from "normal prgress" to "bounce left/right, unknown duration", but without calling setValue the bar will not change.

Hence my example using both

If minimum and maximum are set to both 0, then setting the value to anything other shouldn't have any effect as the value should be bound to min <= val <= max. At least that's my logic