[cups-devel] How to get a list of (or default) page size?

[Olivier Guillion - Myriad]

Hi,

I'm working on Ubuntu 13.10, using cups 1.7rc1.

I would want to get the dimension and margin of the supported page size for 
each printer (or at least the default one). Because the PPD API is marked as 
deprecated, I'm trying not to use it.

Here is where I am, after 10 hours of struggle (in plain C):
------------
num_dests= cupsGetDests(&dests);
for (i=0,dest=dests;i<num_dests;i++,dest++)
    {
    http=cupsConnectDest(dest,CUPS_DEST_FLAGS_NONE,5000,
                      &cancel,resource,1023,NULL,NULL); // 5 sec timeout
   dinfo=cupsCopyDestInfo(http,dest);
  // trying to get all possible media
   nbmedia=cupsGetDestMediaCount(http,dest,dinfo,CUPS_MEDIA_FLAGS_DEFAULT);
   printf("%d medias\n",nbmedia);
  // always get 0 !!
   }
---------------

This code is a simplified version, in which error check has been removed but I 
get a valid http_t pointer, as well as a valid dinfo.

If I replace CUPS_MEDIA_FLAGS_DEFAULT by CUPS_MEDIA_FLAGS_BORDERLESS (the 
latter is the only one that provides a non-null number of media), I get 1215 
media, with paper size of about 137 meters long. I don't own a printer for 
football fields, I promise! :)

As a side note, 
cupsGetDestMediaByName(http,dest,dinfo,"iso_a4_210x297mm",
                     CUPS_MEDIA_FLAGS_DEFAULT,&size)
gives the right size and margins, but I don't know how I can get the proper 
default media name for the printer.

Thanks for any help you could provide,
Olivier
Olivier Guillion
Myriad
26 rue Michel de Montaigne
31200 Toulouse 
FRANCE
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