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michaelrsweet / pappl

PAPPL - Printer Application Framework
https://www.msweet.org/pappl
Apache License 2.0
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Add freely usable data pointer to "pappl_pr_driver_t" data structure #68

Closed tillkamppeter closed 3 years ago

tillkamppeter commented 3 years ago

Is your feature request related to a problem? Please describe. In my PostScript Printer Application I include PostScript Printer PPD files in the Snap, each PPD makes up a driver in the Printer Application. When a print queue is set up the appropriate PPD file is read and the pappl_pr_driver_t is appropriately populated. The PPD file options not covered by IPP/PAPPL I want to add as vendor options. In addition to the IPP names for the options and choices and human-readable names (Issue #66) I also want to add some extra data needed for the print job execution. For this I would simple need a freely usable data pointer in the pappl_pr_driver_t data structure which I could let point to my own data structure containing the extra data.

Describe the solution you'd like A simple, freely usable data pointer in the pappl_pr_driver_t data structure.

michaelrsweet commented 3 years ago

This already exists and is called "extension".