Can't seem to auto-scroll a VerticalScrollBar?

[Darkloud]

Hello ladies and gents!

I am having an issue automatically scrolling a vertical bar in my TextEditor widget. The line which I think is correct is as such:

ui->outLine->verticalScrollBar()->setValue(ui.outLine->verticalScrollBar()->maximum());

But for some reason before the setValue call, the -> is underlined and the error is:
member access into incomplete type

Any info on this?

[mpergand]

#include <QScrollBar> ?

[Darkloud]

That worked! Wondering why I had to include that specifically? I'm still new to C++ and definitely still new to the Qt classes.

[Bonnie]

@Darkloud That's too c++ basic.
Without the including, the compiler don't know what is a QScrollBar and what functions does it have.
Other classes which you can use their functions without including them, may actually be included in some other files you've included.

[Darkloud]

Right, I thought it was inhereted from QMainWindow. I see now. Thanks