mouseMoveEvent works only if mouse is clicking



  • Hi,
    i'm trying to use mouseMoveEvent function in order to tracking the position of the mouse. But it works only if i hold the mouse button. I need it works always.
    Thank you

    MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
    {

    ui->setupUi(this);
    setMouseTracking(true);
    

    }

    MainWindow::~MainWindow()
    {
    delete ui;
    }

    void MainWindow::mouseMoveEvent(QMouseEvent *event){

    QPoint pos=mapFromGlobal(QCursor::pos());
    qDebug() << pos << endl;
    if(QWidget::childAt(pos.x(),pos.y())) ui->INFO->setText(QWidget::childAt(pos.x(),pos.y() )->whatsThis());
    else ui->INFO->clear();
    

    }


  • Lifetime Qt Champion

    Hi,

    You are not calling the base class implementation nor are you handling the event itself so it gets lost.


Log in to reply
 

Looks like your connection to Qt Forum was lost, please wait while we try to reconnect.