qt-everywhere-src-5.14.1/qtdatavis3d/examples/datavisualization/audiolevels/main.cpp

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** 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();
}