In the ScrollView.Initialize there is one parameter which is the inner height.
But in the HorizontalScrollView.Initialize there is a second parameter named "event name". What is this? Why is necessary a second parameter? I don't find any help on BeginnersGuide nor on KeyWord_Views. What is the meaning of "set the sub that will handle the event"? Is there any place to find more information of parameters and methods of Views?