Undefined reference to QWidget::event(QKeyEvent *) in custom classes

[jefftee]

No virtual void event(QKeyEvent *) either in my mac Qt 5.5.0 installation either:

imac01:~/Qt/5.5.0$ grep QKeyEvent /Users/jefft/Qt/5.5.0/clang_64/lib/QtWidgets.framework/Versions/5/Headers/qwidget.h
class QKeyEvent;
    virtual void keyPressEvent(QKeyEvent *);
    virtual void keyReleaseEvent(QKeyEvent *);

imac01:~/Qt/5.5.0$ grep QKeyEvent /Users/jefft/Qt/5.5.0/clang_64/lib/QtWidgets.framework/Versions/5/Headers/qwidget.h
class QKeyEvent;
    virtual void keyPressEvent(QKeyEvent *);
    virtual void keyReleaseEvent(QKeyEvent *);

To copy to clipboard, switch view to plain text mode 

Seems something is wonky with your Qt installation. If you can't remove/install the Qt packages that installed into /usr, can you perhaps install 4.8.5 into your home directory and see if it matches what you have installed into /usr?

[Toniy]

All right. I have collected some statistics on different Qt versions and there is no any of these functions. How they appeared and more important how they used to work before -- here is the question.
I'll reply here when I find source sample that was used for Qt installation on my computer and check it.

Thanks for the quickest responses.

[Toniy]

I didn't find sources but deleted that function and replaced it with ones recommended in that thread (in file "qwidget.h") and problem has been solved.
Seems like I accidentally corrupted that file myself.

So, maybe that thread will be useful for someone and he/she will solve similar problem quicker

[d_stranz]

Seems like I accidentally corrupted that file myself.

If I were you, I would re-install Qt instead of relying on your memory and hand-editing a really core Qt header file. Who knows what else you've "accidentally corrupted" that might come back to bite you later?

You are fortunate that you seem to be using a binary distribution of Qt, and the linker caught your error.