As far as I can tell in both Windows and Java the mousewheel event is
always and only sent to the control with focus. However, within an app
anything can be done with that event. The app would keep track of
mousemove events to know which window the mouse was in and then the
mousewheel event would be 'reflected' from the focus window to the
window where the mouse was. I think the J low level mousewheel event and
data is at the right level and the app can do what it wishes.
Barring serious problems there won't be more mousewheel changes for this
release.
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