#include "mainwindow.h"

#include <QApplication>
#include <QWidget>

#include <cstdio>

int main(int argc, char *argv[]) {
  QApplication app(argc, argv);

  QApplication::connect(&app, &QApplication::aboutToQuit,
                        []() { std::puts("QApplication::aboutToQuit"); });

  // Commenting those lines will not trigger aboutToQuit(), nor the output after
  // app.exec() when ending the application via Task Manager or `taskkill`:
  QWidget w;
  w.show();

  auto const ret = app.exec();

  std::puts("app.exec() returned.");

  return ret;
}