@raven-worx said in QWheelEvent & Siblings/Children:

@J.Hilk said in QWheelEvent & Siblings/Children:

Currently I do this with a signal that has the QWheelEvent* as argument

why not directly forward the event to the child widget instead?
(using QCoreApplication::sendEvent())

Well, yes, that seems exactly like the proper way to do it!
I'll look further into it, thanks!

Yes this is exactly what I was looking for. Solved!

AFAIK, the Qt 4.8 series has no release officially supporting such a recent version of macOS. Therefore you may have surprises. Note that Qt 4 has reached end of life so unless you are locked to that version, you should really consider updating to Qt 5 which is now at it's 5.9.0 release.