audiolevelsiodevice.h Example File

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#ifndef AUDIOLEVELSIODEVICE_H
#define AUDIOLEVELSIODEVICE_H

#include <QtDataVisualization/qbardataproxy.h>
#include <QtCore/QIODevice>

using namespace QtDataVisualization;

class AudioLevelsIODevice : public QIODevice
{
    Q_OBJECT
public:
    explicit AudioLevelsIODevice(QBarDataProxy *proxy, QObject *parent = 0);

protected:
    qint64 readData(char *data, qint64 maxSize);
    qint64 writeData(const char *data, qint64 maxSize);

private:
    QBarDataProxy *m_proxy;
    QBarDataArray *m_array;
};

#endif