#include <QtWidgets>
#include <QtGui>

class MainWindow : public QMainWindow
{
public:
	MainWindow() {}
	void	timerEvent(QTimerEvent*)
	{
		QWidget* w = QApplication::widgetAt(QCursor::pos());
		if (w)
			qDebug(qPrintable(w->objectName()));
	}
};

int main(int argc, char** argv)
{
	QApplication app(argc, argv);
	MainWindow* w = new MainWindow;
	w->setObjectName(QLatin1String("MainWindow"));
	w->show();
	w->startTimer(500);

	QDialog* d = new QDialog(w);
	d->setObjectName(QLatin1String("Dialog"));
	d->exec();

	return app.exec();
}