How find QPoint from a QListWidgetItem inside viewport?

[patrik08]

To QDrag a icon from QListWidgetItem i need to discovery QPoint from Item to set

setHotSpot

QDrag *drag = new QDrag(this);
     drag->setMimeData(mimeData);
     drag->setPixmap(Io.pix());
     drag->setHotSpot(event->pos() - ????? ); //////

QDrag *drag = new QDrag(this);
     drag->setMimeData(mimeData);
     drag->setPixmap(Io.pix());
     drag->setHotSpot(event->pos() - ????? ); //////

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how i find this inside viewport? from one QListWidget to other?