Renaissance - Adding a target to a button

[csanyipal]

Hi,

I'm developing a GNUstep app: LPT_Interface.app which purpose is to
Control the LPT parallel port of a PC Box. 

This is a Renaissance application. 

In LPT_Interface.gsmarup I specify a button (type toggle) which should
set/reset a bit on Data Port of LPT port. I don't have an Idea which
target should add to this button? The line is:

<button type="toggle" title="1" alternateTitle="0" id="DPb0s"
nextKeyView="#DPb0?" action="lptDPb0:" target="???????" /> 

So when one click on this button, then the application should write 1 or
0 to the bit 0 of the LPT Data Port.

Sorry for the stupid question.
Any advices will be appreciated!

-- 
Regards, Paul Chany
You can freely correct me in my English.
http://csanyi-pal.info