main.cpp Example File

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  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the Qt Data Visualization module of the Qt Toolkit.
  **
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  #include "audiolevels.h"

  #include <QtGui/QGuiApplication>
  #include <QtMultimedia/QAudio>

  using namespace QtDataVisualization;

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

      Q3DBars window;

      if (!window.hasContext()) {
          qWarning() << QStringLiteral("Couldn't initialize the OpenGL context.") ;
          return -1;
      }

      window.setFlags(window.flags() ^ Qt::FramelessWindowHint);
      window.resize(800, 500);
      window.setTitle("Qt Data Visualization - Microphone audio levels visualizer");
      window.show();

      AudioLevels audioLevels(&window);

      return app.exec();
  }