Quote Originally Posted by Salazaar View Post
access functions doesn't say how to refer to lineEdit's text.
Hmm? Do you know the meaning of the word "access"?

QString text () const it's just a declaration of a string.
Hmm?

It's a declaration of a function/method that is called "text", returns a "QString" object and takes no arguments (implicit void).

void setText ( const QString & ) is to set the lineEdit's text.
Correct.

And I still don't know how to operate on lineEdit's text.
How about just trying to use the "text()" method?