"Chris Antos" wrote:
> >The only problem with _that_ is many of our types are intended to be
> >opaque. That is, you should not know the structure of a WindowType, and we
> >can't make the Win... routines take a "WindowType *" paramater without
> >exposing WindowType.
>
> perhaps the original intent was for the objects to be opaque.
> for that, the struct's should never have been in the publicly released
> header files.
> instead, the header file should have contained something like:
>
> typedef ListPtr VoidPtr;
>
> this compiles and gives complete opacity.
You can also do:
typedef struct ListType *ListPtr;
in the public header file without defining exactly what 'struct ListType'
contains. You can then fully define 'struct ListType' in either a private
header file or in the body of your C program.
