#include#include int main(int argc, char *argv[]) { QApplication app(argc, argv); QMainWindow mainWindow; mainWindow.show(); return app.exec(); }
#includeIn this example, we create a QMainWindow object called mainWindow and add a menu bar with a "File" menu that includes "Open" and "Exit" actions. The actions are added to the menu with addAction(). The Qt library provides the QMainWindow class and related functions like show(). The package/library would be Qt.#include #include #include int main(int argc, char *argv[]) { QApplication app(argc, argv); QMainWindow mainWindow; QMenuBar *menuBar = mainWindow.menuBar(); QMenu *fileMenu = menuBar->addMenu("&File"); QAction *openAction = fileMenu->addAction("&Open"); QAction *exitAction = fileMenu->addAction("E&xit"); mainWindow.show(); return app.exec(); }