Re: Renaissance - Adding a target to a button

[Nicola Pero]

On 14 Aug 2010, at 13:31, csanyipal@gmail.com wrote:

> 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.

The simplest/most likely target you can use is

 <button ... target="#NSOwner" />

which would call the -lptDPb0: method of the owner of the gsmarkup  
file, which can be any
object in your application that you specify when you load the gsmarkup.

There are a number of other targets you can use, for example #NSApp,  
#NSApp.delegate,
or #NSOwner.buttonDelegate.  Please check the Renaissance  
documentation, for example

http://www.gnustep.it/Renaissance/Manual/node17.html#SECTION003331200000000000000

for more information on what you can use there.  The Renaissance  
examples are also a good place
to find information; there are a number of complete applications in  
there. :-)

Thanks