Wheel event has wrong coordinates in some cases.

#include "mandelbrotwidget.h"
#include <QApplication>
#include <QTableView>
#include <QHBoxLayout>//! [0]
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QWidget widget;
    auto mwidget = new MandelbrotWidget ();
    mwidget->setSizePolicy (QSizePolicy::Expanding, QSizePolicy::Expanding);
    auto mtable = new QTableView ();
    mtable->setMaximumWidth (100);
    auto layout = new QHBoxLayout (&widget);
    layout->addWidget (mtable);
    layout->addWidget (mwidget);
    widget.show();
    mwidget->winId ();
    widget.resize (500, 500);
    return app.exec();
}
//! [0]

QPoint localPos = QWindowsGeometryHint::mapFromGlobal(receiver, globalPos);
QWindowSystemInterface::handleWheelEvent(window, localPos, globalPos, QPoint(), angleDelta, keyM
odifiers);