[REG 4->5] Qt 5 QWidget::grabMouse(QCursor) does not change the cursor.

#include <QApplication>
#include <QCursor>
#include <QDebug>
#include <QPushButton>

class Widget : public QPushButton
{
    Q_OBJECT

public:
    Widget()
    {
        m_on = false;
        connect(this, SIGNAL(clicked()), this, SLOT(onClicked()));
    }

    bool event(QEvent *ev)
    {
        qDebug() << ev->type();
        return QPushButton::event(ev);
    }

    Q_SLOT void onClicked()
    {
        m_on = !m_on;
        if (m_on)
            grabMouse(Qt::CrossCursor);
        else
            releaseMouse();
    }

    bool m_on;
};

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.show();

    return a.exec();
}

#include "main.moc"

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