QStringList with Signal/Slot

[Sivert]

Hi, how can I send QStringList with signal ? I mean like:

signals:
void sig( QStringList & );
(...)
QStringList list;
emit sig( list );

signals:
void sig( QStringList & );
(...)
QStringList list;
emit sig( list );

To copy to clipboard, switch view to plain text mode 

But it won't work. I've read something about QVariant but can't get it to work either. Any suggestions ?