[Qt-interest] QPushButton - remain down...

[BRM]

I have a series of items I am putting into a QToolBar so the user can select them during run.
Presently I am using the QCheckBox, but it takes up a lot of room.
Preferably, I'd like to have a QPushButton kind of widget that has two states: Up and Down.
Looking through the documentation, I did notice that QPushButton has those states, but it does not seem to remain in those states.

Am I missing something to enable this?
Or am I going to need to subclass?

Note: I'm presently using Qt 4.5 (4.5.1, 4.5.2).

TIA,

Ben