QTreeWidget *treeWidget = new QTreeWidget(); QTreeWidgetItem *rootItem = new QTreeWidgetItem(treeWidget); rootItem->setText(0, "Root Item"); QTreeWidgetItem *childItem = new QTreeWidgetItem(rootItem); childItem->setText(0, "Child Item");
QTreeWidgetItem *item1 = new QTreeWidgetItem(); item1->setText(0, "Bold Item"); QFont boldFont("Arial", 12, QFont::Bold); item1->setFont(0, boldFont); QTreeWidgetItem *item2 = new QTreeWidgetItem(); item2->setText(0, "Italic Item"); QFont italicFont("Arial", 10, QFont::StyleItalic); item2->setFont(0, italicFont);This code creates two items with different font styles. The `setFont` function is used to set the font properties for each item. The package library for QTreeWidgetItem is part of the Qt framework.