Setting fixed-width font

["Egon Andersen, Talura" <post talura dk>]

Hi,

I have a widget (actually a GtkLabel, but it may be changed later) for 
which I want use fixed-width font.

Is there a simple way to achieve this?

(I've looked in the FAQ and mail-archive. But it only described a 
solution using a resource file, which I don't want to use in this case.)

Best regards
Egon Andersen