What is the purpose of: if (object == header())

[jlinkels]

I am trying to understand the Qt Event filtering. Currently working on this function.

bool KrInterDetailedView::eventFilter(QObject *object, QEvent *event)
{
    if (object == header()) {
        if (event->type() == QEvent::ContextMenu) {
            auto *me = dynamic_cast<QContextMenuEvent *>(event);
            showContextMenu(me->globalPos());
            return true;
        } else if (event->type() == QEvent::Resize) {
            recalculateColumnSizes();
            return false;
        }
    }
    return false;
}

It is a part of Krusader file manager

Apparently there is a check if object is equal to header(). But what IS header()?

In gdb I cannot evaluate the function. Nor can I find any method in the QObject documentation.

Obviously, googling for "QObject header" does not return many useful results.

[mpergand]

But what IS header()?

class KrInterDetailedView : public QTreeView, public KrInterView

QHeaderView *QTreeView::header() const

[jlinkels]

@mpergand Thank you.