ItemUnder
DiagramItem *item = ItemUnder(point);
DiagramItem *item = ItemUnder(point);
DiagramItem *item = ItemUnder(point);
DiagramItem *item = ItemUnder(point);
DiagramItem* ItemUnder(BPoint point);
DiagramItem *item = ItemUnder(point);
DiagramItem *item = ItemUnder(point);
DiagramItem *item = ItemUnder(point);
DiagramItem *item = ItemUnder(point);
MediaJack *jack = dynamic_cast<MediaJack *>(ItemUnder(point));