[FreeNX-kNX] how printing works

[Antoine Martin]

Hi,

I am trying to figure out how NX does the printer forwarding.
How does it tell the client sessions to connect to a different printer
on the fly when the client connects from a different location?
Can it be done/is it done without samba?

Can anyone point me to some documentation?
I would like to understand the mechanism, and emulate it using simple
scripts. (I am not interested in using it via NX, rather I want to
understand it/test it by hand).

Thanks
Antoine