Why

ExactPlace441

Hello. I am writing code for a QT Widget application.

I made buttons in the past and used slots to enable actions for them when the user uses them. However, I changed the name of one of the buttons from action_import to menuBar_import after doing the plug. Because of this, I now have two cases, where one applies to the previous name of a widget that does not exist.

How can I fix this? I receive an error upon trying to run my code since case 0 is bad now. Now, I can remove case 0 to get my code to work, but I do not want to do this each time.

Error:

void MainWindow::qt_static_metacall(QObject *_o, QMetaObject::Call _c, int _id, void **_a)
{
    if (_c == QMetaObject::InvokeMetaMethod) {
        auto *_t = static_cast<MainWindow *>(_o);
        (void)_t;
        switch (_id) {
        case 0: _t->on_actionImport_triggered(); break;
        case 1: _t->on_menuBar_import_triggered(); break;
        case 2: _t->on_menuBar_export_triggered(); break;
        case 3: _t->on_button_quizInfo_clicked(); break;
        default: ;
        }
    }
    (void)_a;
}

Thank you!

ExactPlace441

Edit: Pardon the poor title. I forgot to finish it. I will repost with a better title.

SGaist

Hi and welcome to devnet,

Just edit the title, no need to repost.

It seems you are using the auto connect feature.

It would be simpler to manually do the connections yourself. This will also save you time when renaming widgets.

ExactPlace441

@SGaist

Thank you for helping me out.

Would it be alright for you to point me in the direction of disabling auto-connect? I removed the function from the mainwindow.cpp altogether, but it still shows up.

Furthermore, I added a new button slot by right clicking a new button, then clicking "Go to slot", then adding an action upon click. After removing the resulting code from the mainwindow.cpp, I still receive an error for it.

SGaist

To stop using auto connection, do not use on_XXX_signalName.

Create slots with meaningful name in the code and then connect them at the end of your constructor.

ChrisW67

Do a clean build of your project so that moc runs and moc_mainwindow.cpp is regenerated to match your actual MainWindow declarations in mainwindow.h (which should be on_menuBar_import_triggered())