> From: Jimi Malcolm
>
> ... but I'm wondering about something I'm seeing in Foster's source.
>
> #ifdef __GNUC__
> CALLBACK_PROLOGUE;
> #endif
> ...
> #ifdef __GNUC__
> CALLBACK_EPILOGUE;
> #endif
>
> I'm using Metrowerks' Codewarrior so I'm not worrying about
> adding this GNU C specific in here, but I'm curious as to what it does.
>
You don't need it for CodeWarrior. It's there because GCC uses a different
calling convention than the Palm OS does. To write a Palm app with GCC, you
used to (I say "used to" because I don't use GCC and it's possible they've
changed this now) have to #include Callback.h in your project and use the
CALLBACK_PROLOGUE and CALLBACK_EPILOGUE whenever a GCC app calls a Palm OS
function that either directly or indirectly calls back to a GCC function.
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