[Openicc] GoSoC 2011: CPD and Color Management
Till Kamppeter
till.kamppeter at gmail.com
Mon May 2 07:06:38 PDT 2011
On 05/02/2011 03:28 PM, Kai-Uwe Behrmann wrote:
> How could the Gutenprint options be passed from a CUPS client to the
> final rastertoprinter driver? Would placing them inside the PPD make
> them visible to Gutenprint?
The default option settings are defined in the PPD file on the server
(/etc/cups/ppd/<queue>.ppd). The client downloads this PPD file from the
server to build the option widgets in the printing dialog. If the user
changes the settings in the printing dialog, all changed settings are
sent along with the job as IPP attributes. These changed settings are
supplied to all CUPS filters as space-separated "<option>=<value>" list
by the CUPS server via the fifth command line argument. So each filter
knows the complete option settings. All options not set in the fifth
command line argument are still on default and can be read from the PPD
file (/etc/cups/ppd/<queue>.ppd).
Till
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