#include "mainwindow.h" #include "./ui_mainwindow.h" #include MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) , ui(new Ui::MainWindow) { ui->setupUi(this); QMetaObject::connectSlotsByName(this); } MainWindow::~MainWindow() { delete ui; } void MainWindow::on_actionOpen_triggered(bool checked) { QMessageBox msgBox; msgBox.setText("It works!"); msgBox.exec(); }