native event of child window

[anda_skoa]

I tried to find examples where a subclass native event filter sent out an event or something that could act on MainWindow objects (in my case, graph windows) but couldn't find any.

You can create instances of Qt event classes and use QCoreApplication::postEvent() or QCoreApplication::sendEvent() to send them to a receiver object.

However using signals as you did looks fine as well and easier in this case.

Cheers,
_