uppercase letters in a QTextEdit

I am designing a notepad application and I want to change the case of the text in QTextEdit to uppercase.
I tried

Code:

---

if (name == "Uppercase") {
       textEdit->setFont(Qt::Alluppercase);
       }

---

but it doesn't work. Which property can I use?

You can use "setInputMethod" method of QTextEdit and assign it "Qt::ImhPreferUppercase"

AND IT IS SOLVED.

CHEERS

setInputMethod does not exist. I tried setInputMethodHints but no result