Propagating event to scrollBar

[bunjee]

I'm trying to propagate an event to my QScrollbar.

/* virtual */ void ZeContactFlow::wheelEvent(QWheelEvent * event)
{
	std::cout << "Hello ?\n";
	if (mScrollBar)
	{
		QWheelEvent * newEvent = new 
			QWheelEvent(event->pos(), event->globalPos(), event->delta(), event->buttons(),
						Qt::NoModifier, event->orientation());
		QCoreApplication::postEvent(mScrollBar, newEvent);
	}
}

/* virtual */ void ZeContactFlow::wheelEvent(QWheelEvent * event)
{
	std::cout << "Hello ?\n";
	if (mScrollBar)
	{
		QWheelEvent * newEvent = new 
			QWheelEvent(event->pos(), event->globalPos(), event->delta(), event->buttons(),
						Qt::NoModifier, event->orientation());
		QCoreApplication::postEvent(mScrollBar, newEvent);
	}
}

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This code has no effect. What am I doing wrong ?

[jpn]

So ZeContactFlow is something which doesn't inherit QAbstractScrollArea (which already does such thing)?

[bunjee]

QAbstractScrollArea instance is a child of ZeContactFlow instance.

[bunjee]

/* virtual */ void ZeContactFlow::wheelEvent(QWheelEvent * event)
{
	std::cout << "Hello ?\n";
	if (mScrollBar)
	{
		//QWheelEvent * newEvent = new 
		//	QWheelEvent(event->pos(), event->globalPos(), event->delta(), event->buttons(),
		//				Qt::NoModifier, event->orientation());
		QApplication::sendEvent(mScrollBar, event);
	}
	else
	{
		event->ignore();
	}
}

/* virtual */ void ZeContactFlow::wheelEvent(QWheelEvent * event)
{
	std::cout << "Hello ?\n";
	if (mScrollBar)
	{
		//QWheelEvent * newEvent = new 
		//	QWheelEvent(event->pos(), event->globalPos(), event->delta(), event->buttons(),
		//				Qt::NoModifier, event->orientation());
		QApplication::sendEvent(mScrollBar, event);
	}
	else
	{
		event->ignore();
	}
}

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This implementation makes me crash