[Interest] error connecting signals

[Adrian Stern]

Hi

I have a little problem connecting a signal to a slot.

I’ve the following two classes:
DisplayManager which extends QObjects and of course has the Q_OBJECT macro in it and
VideoPlayer which extends PlayerBase, IControllable and IPlaceable. PlayerBase extends QObject and has the macro in it.

When I try to connect the signal like this:
connect(&vp1, &VideoPlayer::next, this, &DisplayManager::nextVideo);

I get this strange error:
/usr/include/qt/QtCore/qobject.h:221: Fehler:request for member 'qt_check_for_QOBJECT_macro' is ambiguous
/usr/include/qt/QtCore/qobject.h:239: Fehler:reference to 'QtPrivate::FunctionPointer<void (VideoPlayer::*)()>::Object {aka VideoPlayer}::staticMetaObject' is ambiguous

I don’t see any hint about where to look for a solution.
Thanks in advance.


Freundliche Grüsse / Best Regards / Meilleures salutations
Adrian Stern
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