How to create hexadecimal digits of capital using QString :: arg ()? [QT]

Question

I am trying to create a QString that is a hexadecimal number with its letters in Capitals instead of small caps, how can this be done?

QString( " %1" ).arg( 15, 1, 16 )

gives f, and I would likef

Answer 1

Converting a string to uppercase:

QString( " %1" ).arg( 15, 1, 16 ).toUpper();

This returns an uppercase string. This method was called upper () in qt3.