[Solved] QMenu::addAction with auto connection not working.



  • There are two overloads of addAction that are supposed to automatically connect the new action to a slot. Check "here":http://qt-project.org/doc/qt-5/qmenu.html for actual signature.

    The connection is either not created or does not work. If I use the normal non-connecting overload and connect it manually, it works fine.

    Here is my code that calls one of these function:
    @
    contactsMenu->addAction(mStatusIcons.at(STATUS_ONLINE), QString("Hide Contacts"), this, "showContacts", QKeySequence(Qt::Key_S));
    @

    I have also tried adding () to showContacts (making "showContacts()) which doesn't work either. Is their something else I am missing?

    Here is the function it is supposed to call (truncated for brevity):
    @
    void SocialMode::showContacts()
    {
    mP->contactsVisible = ~mP->contactsVisible;

    if (mP->contactsVisible)
    {
    mP->showContactList->setIcon(mStatusIcons.at(STATUS_ONLINE));
    mP->showContactList->setText("Hide Contact List");
    // show the contact list...
    }
    else
    {
    mP->showContactList->setIcon(mStatusIcons.at(STATUS_OFFLINE));
    mP->showContactList->setText("Show Contact List");
    // hide the contact list...
    }
    }
    @


  • Moderators

    You should use the SLOT macro for the member parameter of addAction(), just like in a plain connect(). A string name of the slot won't work.
    That's actually true for all places where a signal/slot name is required via const char* parameter, exception being the QMetaObject and friends.



  • Thanks for that. It worked.


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