[PATCH v3] user32: Add MOUSEHOOKSTRUCTEX to fix mouse wheel support for JA2 1.13 and other apps which use it

[Nikolay Sivov]

Hello again.

> +typedef struct
> +{
> +    MOUSEHOOKSTRUCT MOUSEHOOKSTRUCT;
> +    DWORD           mouseData;
> +} MOUSEHOOKSTRUCTEX, *PMOUSEHOOKSTRUCTEX, *LPMOUSEHOOKSTRUCTEX;

Apparently that's not how Windows SDK defines it. For some obscure
reason they didn't define EX struct simply as non-EX + extra field,
but used cpp style, kind of. Older versions don't even have field name
for MOUSEHOOKSTRUCT portion, only type, but this won't work, not with
gcc at least. SDK 10 uses DUMMYSTRUCTNAME as a field name, which
resolves to 's', if NONAMELESSSTRUCT is defined. I guess we have to
follow version 10 definition.