Gtk-demo, win32

i’ve already posted a message concerning ‘gtk-demo’-sdl_window_hack on
win32. The problem is that SDL doesn’t seem to use the
"SDL_WINDOWID=something" environment variable (the variable is really
put, i’ve verified with getenv).

Is it a known thing ? In the “demos” section of, there is the
"windows flag" next to gtk-demo, so it is supposed to work.

Thanks in advance,