Troels Henriksen wrote:
"Gtk backend for CLX" does not make much sense (and McCLIM does not have a Motif backend at all, though the commercial CLIMs do). There is an experimental backend named "Gtkairo" that blends use of Gtk and Cairo, but it is not yet as stable or full-featured as the CLX backend. It may work for your programs, depending on what you want to do. In general, the drawing primitives work very well with it, but the more obscure CLIM facilities are less well supported.
If there is a Gtkairo backend for mcclim than I would expect that mcclim uses an ffi e.g. cffi. If so I would like to have some working knowledge of how it is done and what C library one uses. I mean wxcl uses wxWidgets (written in C++), swig to "translate it to cffi and also cffi. But I couldn't find a folder like cffi in the mcclim distribution.