QTreeWidgetItem* item = new QTreeWidgetItem(); item->setText(0, "Item1"); item->setToolTip(0, "This is the tooltip for Item1");
QTreeWidgetItem* parent = new QTreeWidgetItem(); parent->setText(0, "Parent"); QTreeWidgetItem* child = new QTreeWidgetItem(parent); child->setText(0, "Child"); child->setToolTip(0, "This is the tooltip for Child");This example creates a hierarchy of tree widget items, with a parent item named "Parent" and a child item named "Child". The setToolTip function is used to set a tooltip specifically for the child item, which will display the text "This is the tooltip for Child" when the child item is hovered over. Package library: Qt.