get notified when QDockWidget gets/looses focus?

[tuli]

hi,

I have a QMainWindow hosting several subclassed QDockWidgets. I would now need to detect when one of the QDockWIdgets gets or looses focus.
There doesnt appear to be a signal for that, so i figured i have to catch the event somehow :

class mydockwid : public QDockWidget
{
	Q_OBJECT
 
public:
 
....
 
	//qt event handlers
	virtual void focusInEvent( QFocusEvent* );
};

class mydockwid : public QDockWidget
{
	Q_OBJECT

public:

....

	//qt event handlers
	virtual void focusInEvent( QFocusEvent* );
};

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But the focusInEvent() never gets called. I am also worried that QDockWidget has or will have use for focusInEvent() itself, and i break its functionality.

How to do it properly?