OleAut32.dll.DispCallFunc

[Marcus Meissner]

On Tue, Oct 22, 2002 at 10:16:57AM +0200, Fabian Cenedese wrote:
> Hi all
> 
> My app stumbled over a not implemented function from oleaut32.dll
> called DispCallFunc. It's only available as stub. I tried to find some info
> about this but it's an undocumented "feature". MSDN doesn't mention it
> at all (obviously) and on the net I could only find this short description:
 
> ***
>   ITypeInfo::Invoke (or DispInvoke) needs v-table to call-in a method.
> But when we are talking about pure disp-interfaces - they don't have any
> info about v-table, but just a mapping between DISPID and method signature.
> Therefore these functions would fail miserably to convey the call to pure
> dispinterface, but as all we know - the majority of sources(/events)
> interfaces are these pesky dispinterfaces. DispCallFunc is a low-level
> routine (that btw is used by DispInvoke and ITypeInfo::Invoke internally).

We implement ITypeInfo::Invoke already, so it should be easy to do
an implementation of this one.

Check dlls/oleaut32/typelib.c::ITypeInfo_fnInvoke.

If you can provide me a small testprogram I can see whether I can implement
it.

Ciao, Marcus