hhctrl: Add the CHM implemenation

[Dmitry Timoshkov]

"James Hawkins" <truiken at gmail.com> wrote:

> --- /dev/null 2005-07-23 07:02:07.637731864 -0500
> +++ dlls/hhctrl.ocx/itss.h 2005-07-25 01:09:16.000000000 -0500
> @@ -0,0 +1,302 @@
> +/*** Autogenerated by WIDL 0.1 from itss.idl - Do not edit ***/

Probably we need to move itss.idl to include/ so that a generated
itss.h could be accessed globally.

> +    hr = pStorage->lpVtbl->OpenStream(pStorage, stringsW, NULL, STGM_READ, 0, &pStream);

Please use IStorage_OpenStream macro here and similar macros instead
of accessing vtable directly.

-- 
Dmitry.