[Inkscape-devel] scripting interface

Hello,

I try to add some new Python scripts to Inkscape in a project with my students. We need information where the ".inx"-file interface is described. There are other types than only int, bool, float or string to be passed to the script. But we did not find a description how to. Can anyone give us a hint where to find the file format definition of the ".inx" file and where to find some working examples?

2nd question: If anything is detected to be wrong when the script is running, is there a way to inform the user about it?

Thanks in advance

Werner