Only dragging the knobs generates events. Clicking or using the mouse-wheel on them rotates the knob but doesn't send any events.
The connected signal is sliderMoved() that activates only when the user drags the mouse, instead of valueChanged() which triggers even when the value is changed programmatically . See QAbstractSlider.
SF ticket 88
Only dragging the knobs generates events. Clicking or using the mouse-wheel on them rotates the knob but doesn't send any events.
The connected signal is
sliderMoved()
that activates only when the user drags the mouse, instead ofvalueChanged()
which triggers even when the value is changed programmatically . See QAbstractSlider.Created by @berarma