Typelib marshalling BSTRs

[Mike Hearn]

Hi,

Well, I've made pretty good progress, but am a bit stuck with this
problem. Basically:

003d:trace:ole:TL_Marshal   parameter 1
003d:trace:ole:TL_Marshal    name   : L"rgszNames"
003d:trace:ole:TL_Marshal    type   : 26
003d:trace:ole:TL_Marshal    flags  : 01
003d:trace:ole:TL_MarshalType    dereferencing PTR 0x52edf7d0 =>
0x54331260
003d:trace:ole:TL_MarshalType    dereferencing PTR 0x54331260 =>
0x54331270
003d:trace:ole:TL_MarshalType    marshaling byte 100

As you can see, it's marshalling IDispatch across apartment boundaries,
but it gets this parameter wrong. The double dereference seems correct,
but marshalling a byte is not - I think it should be a BSTR.

rgszNames is a parameter of IDispatch::GetIDsFromNames, which is defined
as an OLECHAR FAR* FAR*

I can't figure out where the typeinfo data for IDispatch is coming from
though, hence my stuckness. BTW, is this line really correct:

TL_Unmarshal(pStm, pInfo, pDesc, PARAMFLAG_FIN, args, &argc, pChannel,
&is_iid);

shouldn't it be:

TL_Unmarshal(pStm, pInfo, pDesc, PARAMFLAG_FIN, (DWORD*)&args[0], &argc,
pChannel, &is_iid);

as args[] is a local array declared on the stack which is then passed to
the function to be invoked - otherwise how does TL_Unmarshal set the
arguments? Well I tried changing it, and it made no obvious difference
to my bug, but I thought I'd ask anyway.

thanks -mike