qt5base-lts/examples/opengl/2dpainting/window.h

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#ifndef WINDOW_H
#define WINDOW_H

#include <QWidget>

#include "helper.h"

QT_BEGIN_NAMESPACE
class QLabel;
class QWidget;
QT_END_NAMESPACE

//! [0]
class Window : public QWidget
{
    Q_OBJECT

public:
    Window();

private:
    Helper helper;
};
//! [0]

#endif