text: #include <QGuiApplication>
  #include <QQmlApplicationEngine>
  #include <QtQml>
  
  #include "bluetooth.h"
  
  int main(int argc, char *argv[])
  {
      QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
  
      Bluetooth bluetooth;
      QGuiApplication app(argc, argv);
  
      QQmlApplicationEngine engine;
      const QUrl url(QStringLiteral("qrc:/main.qml"));
      QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
                       &app, [url](QObject *obj, const QUrl &objUrl) {
          if (!obj && url == objUrl)
              QCoreApplication::exit(-1);
      }, Qt::QueuedConnection);
  
      bluetooth.startScanning();
  
      engine.rootContext()->setContextProperty("Bluetooth", &bluetooth);
      engine.load(url);
  
      return app.exec();
  }
  