I got one more question for the tool botton

I create a action, and add to toolbotton.

Qt Code:
  1. QAction *enDusukAlis = new QAction(QString::fromUtf8("En DüşÃ¼k Alış Fiyatı"), w->toolButton());
  2. connect(enDusukAlis, SIGNAL(activated()), w->toolButton(), SLOT(slotenDusukAlis()));
  3. w->toolButton()->addAction(enDusukAlis);
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this slotenDusukAlis has to find something and put a number in a spin. But I was not able to work signal and slot can anybody help?