Hi there,

While adding support for handling keyboard events to the SDL bindings
(see the attached patch; it's not for applying, as the documentation is
lacking and the interface exposes too many details), I discovered that
the alignment of members within a struct matters quite a bit.

That is, to make the keyed struct work correctly, I had to add extra
bytes of padding in the appropriate places.  This works, at least on my
platform, but I'm not sure how portable it is.

If you have the SDL headers installed on your system, I'm trying to make
the Parrot equivalent of an SDL_Event, the mess that it is.  In
particular, I added one byte of padding before keysym and three bytes
before keysym.sym.

Is this indeed unportable?  If so, is there a way to work around this
without writing C code for every afflicted structure?  Is it a case of
making the struct PMCs smarter?  Or have I fixed it with my nasty
workaround?

-- c

sdl_key_events.patch 4K Download