Determining class of icon in Draggable Icons example

[di_zou]

In the Draggable Icons examples, there is a mouse press event with this code:

void DragWidget::mousePressEvent(QMouseEvent *event)
 {
     QLabel *child = static_cast<QLabel*>(childAt(event->pos()));
     ...
 }

void DragWidget::mousePressEvent(QMouseEvent *event)
 {
     QLabel *child = static_cast<QLabel*>(childAt(event->pos()));
     ...
 }

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How would I change it so that I can determine what class the object childAt(event->pos()) is? I looked at the QWidget documentation, and I couldn't find a function similar to something like getClass() or getObjectType(). Any help would be appreciated.