// on the screen.
QPoint pos = static_cast<QHelpEvent *>(e)->pos();
QModelIndex item = iv->indexAt(pos);
+ if (!item.isValid())
+ return false;
QVariant data = iv->model()->data(item, Qt::ToolTipRole);
if (data.isValid() && data.typeName() == toqstr("QString"))
// Unchanged if empty or already formatted