Qt 獲取三種坐標類型

void MainWindow::mouseMoveEvent(QMouseEvent *event) {

    //獲得相對於屏幕的坐標
    QPoint sPoint1 = event->globalPos();
    qDebug() << "相對於屏幕坐標1:" << "(" << sPoint1.rx() << "," << sPoint1.ry() << ")";
    
    //獲得相對於屏幕的坐標
    QPoint sPoint2 = QCursor::pos();
    qDebug() << "相對於屏幕坐標2:" << "(" << sPoint2.rx() << "," << sPoint2.ry() << ")";
    
    //獲得相對於窗口的坐標
    QPoint windowPoint = this->mapFromGlobal(sPoint2);
    qDebug() << "相對於窗口坐標:" << "(" << windowPoint.rx() << "," << windowPoint.ry() << ")";
    
    //獲得相對於控件的坐標
    QPoint widgetPoint = ui->label->mapFromGlobal(sPoint1);
    qDebug() << "相對於控件坐標:" << "(" << widgetPoint.rx() << "," << widgetPoint.ry() << ")";
}