Re: [PATCH 2/3] riched20: Add stub for ITextDocument2 interface.

[Jactry Zeng]

Nikolay Sivov  于2018年9月11日周二 上午1:05写道：
> On 09/10/2018 06:03 PM, Jactry Zeng wrote:
> > @@ -209,6 +210,7 @@ typedef struct IRichEditOleImpl {
> >       IUnknown IUnknown_inner;
> >       IRichEditOle IRichEditOle_iface;
> >       ITextDocument ITextDocument_iface;
> > - ITextDocument2 ITextDocument2_iface;
> >  IUnknown *outer_unk;
> >  LONG ref;
>
> It's a bit of a mess, a simple test would show which one should be
> separate, ITextDocument2Old or ITextDocument2.
>
> Of course it's possible all of them are separated.

I had some tests of riched20 and msftedit it showed that:
- riched20 and msftedit both implemented their ITextDocument2Old. And
ITextDocument2Old shared a same reference count with
IRichEditOle;
- Only msftedit from Windows 8 or later implemented ITextDocument2,
and it didn't share reference count with IRichEditOle.
So I think ITextDocument2 will be implemented in msftedit only.

Thanks.
> > +static HRESULT WINAPI ITextDocument2_fnGetTypeInfo(ITextDocument2 *iface, UINT info, LCID lcid,
> > -
> >                                               ITypeInfo **type_info)
> >
> > +{
> > - IRichEditOleImpl *This = impl_from_ITextDocument2(iface);
> > -
> > - return ITextDocument_GetTypeInfo(&This->ITextDocument_iface, info, lcid, type_info);
> >
> > +}
>
> Does that work though? Which typeinfo is returned in this case?