Python version of the gsapi API in ghostpdl:psi/iapi.h.

There are two approaches that have been tried here:

  • Use SWIG to wrap the functions declared in ghostpdl:psi/iapi.h. This done by ghostpdl:toolbin/ This hasn't been entirely succesfull - SWIG is surprisingly limited at dealing with APIs that use (argc, argv) parameters, out-parameters and function pointers. So we end up with lots of manipulation in the SWIG .i file, plus custom front end (e.g. Python or C#) code to make things work.

  • Use python ctypes. This works pretty well. See ghostpdl:toolbin/, a self-contained python module that, as of 2020-Jun-29, provides all of the ghostpdl:psi/iapi.h API except for gsapi_add_fs() or gsapi_remove_fs(). The drawback here is that it is specific to python - equivalent code would have to be written for each front-end language that is required.

-- Julian Smith - 2020-06-29


Edit | Attach | Watch | Print version | History: r4 < r3 < r2 < r1 | Backlinks | Raw View | Raw edit | More topic actions...
Topic revision: r2 - 2020-06-29 - JulianSmith
  • Edit
  • Attach
This site is powered by the TWiki collaboration platform Powered by PerlCopyright 2014 Artifex Software Inc