it does, well the one on the right works
you have to click it first to give it focus and then the wheel works
one on the left wont scroll with the mouse wheel though, not even when clicked first
VScrollBar seems to need a viewport to scroll see http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/spark/components/VScrol lBar.html#includeExamplesSummary for a workign example of mouse scrolling on VScrollBar
thank you for the answer. I just included the Slider to show that this is working and the VScrollbar not.
Even with a viewport attached, the ScrollBar is not working with the mousewheel.
The adobe docs example is working well.
But why is this not working :
http://wensauer.info/flex/Scrollbar/Scrollbar.html (updated with viewport and viewsource enabled)
looks like its not working when using a big step size :/