difference between QFrame and QGroupBox

Hi,
I didn't understand very well what a QFrame is, it's use and the difference between a QFrame and a QGroupBox and/or QLabel.
Sorry for the trivial question.

Best

A QFrame is a widget with a frame.

A QLabel is a widget with a frame that can display text.

A QGroupBox is a widget with a frame that can display a title and a QCheckBox above it.

I think you usually use QFrame as a basis for subclassing if you want your widget to have a frame around it.