Thanks. I was looking for clicked and not sectionClicked...

Qt Code:
  1. connect( pkt_view, SIGNAL(doubleClicked(QModelIndex)), this, SLOT(packetClicked(QModelIndex)) );
  2. connect( pkt_view, SIGNAL(clicked(QModelIndex)), this, SLOT(packetClicked2(QModelIndex)) );
  3. connect( pkt_view->verticalHeader(), SIGNAL(sectionClicked(int)), this, SLOT(HeaderClicked(int)) );
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