Can QObject use type to filter ?

sonichy

QObject->type() == QWidget::QPushButton

bool TitleBar::eventFilter(QObject *obj, QEvent *event)
{
    if ( obj->type() == QWidget::QPushButton && event->type() == QEvent::MouseMove ) {
        return true;    // filter
    } else {
        return false;
    }
    // pass the event on to the parent class
    return QWidget::eventFilter(obj, event);
}

mpergand

Hi,
You can look at the class name::

obj->metaObject()->className();

return the class Name "QPushButton"

or using a dynamic cast

QPushButton* button=qobject_cast<QPushButton*>(obj)

button == nullptr if obj is not a QPushButton

Be aware that subclass like QCommandLinkButton, in that case, are QPushButton too.

sonichy

@mpergand Thank you !

if ( QString(obj->metaObject()->className()) == "QPushButton" && event->type() == QEvent::MouseMove ) {
    ...
}

Solved Can QObject use type to filter ?