I am working on a project where I am using CUPS as a printer server.
I want to hold all new printer jobs, check the cartridge levels of my printer and one by one release jobs for printing.
I want to enable the hold-new-jobs attribute on a specific printer in CUPS.
After this, I have to find out how to get all jobs that are on-hold and release one (by job ID, or so using FIFO) For completeness: If cartridges are below a threshold, the jobs are held until cartridges are reset and a button is pressed.
(The implementation can be done also through cupsdisable --hold and cupsenable --release )
There is no example of IPPRequests for pycups.
Note that I am searching for a solution using pycups in Python or <cups/cups.h> in C (if there are other librairies that can be used please mention then)