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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <QApplication>
#include <QPushButton>
#include <QVBoxLayout>
class TopWidget : public QWidget
{
Q_OBJECT
public:
TopWidget(QWidget *parent = nullptr) : QWidget(parent)
{
QVBoxLayout *layout = new QVBoxLayout;
QPushButton *button = new QPushButton("Change app icon");
connect(button, SIGNAL(clicked()), this, SLOT(changeIcon()));
layout->addWidget(button);
setLayout(layout);
}
public slots:
void changeIcon()
{
QPixmap pix(32, 32);
pix.fill(Qt::red);
QIcon i(pix);
qApp->setWindowIcon(i);
}
};
#include "main.moc"
int main(int argc, char **argv)
{
QApplication a(argc, argv);
TopWidget w;
w.show();
return a.exec();
}
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