[Qt-interest] Problem porting software to QT

[Tony Rietwyk]

Hi, 

I think there can only be one QObject based anscestor in the list, and it
must come first.  Try:

class Screen : public QGraphicsScene, public IScreen
{
      Q_OBJECT
...
};

Hope that helps, 

Tony


> This problem was solved, but sometimes it comes back (must be
> QtCreator bug or something else).
> 
> No I'm having another problem:
> 
> ..\Include\platform\qt\QtScreen.h:137: Warning: Class Screen inherits
> from two QObject subclasses IScreen and QGraphicsScene. This is not
> supported!
> debug\moc_QtScreen.cpp:39: error: `staticMetaObject' is not a member
> of `Engine::Interface::IScreen'
> debug\moc_QtScreen.cpp: In member function `virtual void*
> Engine::QT::Graphic::Screen::qt_metacast(const char*)':
> debug\moc_QtScreen.cpp:55: error: `qt_metacast' is not a member of
> `Engine::Interface::IScreen'
> debug\moc_QtScreen.cpp: In member function `virtual int
> Engine::QT::Graphic::Screen::qt_metacall(QMetaObject::Call, int,
> void**)':
> debug\moc_QtScreen.cpp:60: error: `qt_metacall' is not a member of
> `Engine::Interface::IScreen'
> 
> 
> As I said in the first post, my code is this:
> 
> class Screen : public IScreen, public QGraphicsScene
> {
>       Q_OBJECT
> 
>       friend ...
> 
> private:
>  ...
> 
> };
> 
> 
> And this is the one class in ~450 files that has Q_OBJECT. This class
> is declared in header and defined in a cpp.
> What is the problem now?
> 
> Thanks!