QMenu* menu = new QMenu(this); menu->addAction("Item 1"); menu->addSeparator(); menu->addAction("Item 2");
QMenu* menu = new QMenu(this); menu->addAction("Item 1"); menu->addAction("Item 2"); menu->insertSeparator(1); menu->addAction("Item 3");In the first example, the separator is added after "Item 1" and before "Item 2". In the second example, the separator is inserted at index 1 (between "Item 1" and "Item 2"). The Qt Core module contains a variety of classes for writing cross-platform applications with graphical user interfaces, such as QMenu, QWidget, and QApplication.