Posted by Steve Hawkinson on 1999-08-23
Qt uses a preprocessor called ?mach? I think. It will go through this
code and change it into legal C++. I think the 'Q_OBJECT' is a #define
and this would be legal C++, but the 'public slots:' gets changed into
legal C++ by the ?mach? preprocessor, I believe.
Steve
> Date: Sat, 26 Jun 1999 16:50:46 -0500
> From: "ADnoctum" <adnoctum@xxxxxxx.xxx>
> Subject: Q_OBJECT
>
> I was reading the sources of the KDE/Qt library and i found some weird
> things:
>
> class KButton : public QButton
> {
> Q_OBJECT // This one...
>
> public:
> ~KButton();
>
> protected:
> virtual void leaveEvent( QEvent *_ev );
> virtual void enterEvent( QEvent *_ev );
>
> public slots: // ... and this to.
> virtual void drawButton( QPainter *_painter );
> virtual void drawButtonLabel( QPainter *_painter );
> void paint( QPainter *_painter );
> };
>
> All the classes has the "Q_OBJECT" and a "public slots:" words that i don't
> have seen in another place żIs this legal in C++?.
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