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Date: Fri, 17 Oct 2008 09:34:34 +0200
From: Tobias Hoffmann <lprint-list@the-axe-effect.de>
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Subject: Re: [Printing-architecture] Associate printer
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Matt Gessner wrote:
> I'm missing an important detail.  Can someone point me to an example 
> that shows how to tell HPIJS which printer I wish to use?  From the 
> 0.35 hpijs tar ball, I think I have enough information to do other 
> things, but this part is eluding me.
All the communication between your program and the hpijs is done via a
protocol called ijs, for which there is a simple library (libijs) under
MIT license. It can be found either as part of the ghostscript
sourcecode or at http://www.linuxprinting.org/ijs/. It includes the
protocol description and an example ijs_client_example using libijs.

Roughly sketched you do:
   ijs_invoke_server("hpijs");
   ijs_client_{open, begin_job}
   ijs_client_set_param({DeviceManufacturer,DeviceModel,....},"*your
values*");
   ijs_client_{begin_page,send_data,...}
   ... more pages and/or jobs and cleanup

   Tobias