AFAIK from researching google (you can thank me later), QSlider inherits from QAbstractSlider which contains a getter called 'value()' which returns int.
Quote
value : int
This property holds the slider's current value.
The slider forces the value to be within the legal range: minimum <= value <= maximum.
Changing the value also changes the sliderPosition.
So maybe use that.
This post was edited by Eep on Nov 15 2013 08:03pm