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2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the Qt Charts module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:GPL$
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29
30#include "widget.h"
31
32#include <QtMultimedia/QAudioDeviceInfo>
33#include <QtWidgets/QApplication>
34#include <QtWidgets/QMessageBox>
35
36int main(int argc, char *argv[])
37{
38 QApplication a(argc, argv);
39
40 const QAudioDeviceInfo inputDevice = QAudioDeviceInfo::defaultInputDevice();
41 if (inputDevice.isNull()) {
42 QMessageBox::warning(parent: nullptr, title: "audio",
43 text: "There is no audio input device available.");
44 return -1;
45 }
46
47 Widget w(inputDevice);
48 w.show();
49
50 return a.exec();
51}
52

source code of qtcharts/examples/charts/audio/main.cpp