QHelpEvent toolTipEvent(QEvent::ToolTip, QPoint(0, 0), slider->mapToGlobal(global));
QApplication::sendEvent(slider, &toolTipEvent);
}
QHelpEvent toolTipEvent(QEvent::ToolTip, QPoint(0, 0), slider->mapToGlobal(global));
QApplication::sendEvent(slider, &toolTipEvent);
}