EventFilter on QTreeView, no Qt::Key_delete event

  • Hi

    I want to be able to react on the "Delete" key in the QTreeView. Therefore I install an eventfilter on the QTreeView instance in the constructor of my mainwindow, as suggested in the docs:

    @ArinnotechModule::ArinnotechModule(QWidget *parent) :
    ui(new Ui::ArinnotechModule)

    Declaration and implementation of the event-filter method:
    class ArinnotechModule : public QMainWindow

    explicit ArinnotechModule(QWidget *parent = 0);
    virtual bool eventFilter(QObject * target, QEvent * event);
    @bool ArinnotechModule::eventFilter(QObject *target, QEvent event)
    bool key = false;
    bool delKey = false;
    if( event->type() == QEvent::KeyPress ){
    key = true;
    QKeyEvent * keyEvent = static_cast<QKeyEvent
    if( keyEvent->key() == Qt::Key_Delete ){
    delKey = true;
    return true;
    return QMainWindow::eventFilter( target, event );

    I do get several keypress-events, e.g. F5, Enter, Space, Home, End, ... but Delete never makes it to the filter. What could be the problem?

    What I've tried so far:

    Subclass QTreeView, overwrite keyPressEvent(...)-method. Same behaviour.

    Sublcass QTreeView, overwrite event(...)-method. Same behaviour.

    The QTreeView is located in:
    QMainWindow->QWidget (Central Widget)->QTabWidget->QWidget (page)->QTreeView

    Any ideas why the filter does not capture the event?

  • Well, turns out I had prepared a QAction in the UI-Designer with the shortcut set to the "Delete" key. I figure the QAction object got the event first and handled it returning "true". After removing the shortcut everything worked as expected...

Log in to reply

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