Re: Still need help!

From:

"Igor Tandetnik" <itandetnik@mvps.org>

Newsgroups:

microsoft.public.vc.atl

Date:

Mon, 5 Jan 2009 18:01:38 -0500

Message-ID:

<#2utRm4bJHA.5152@TK2MSFTNGP03.phx.gbl>

khalprin <khalprin@discussions.microsoft.com> wrote:

I've tried to simplify this by using only one structure with two
fixed arrays within it to represent the 'OBJCMDPARM' data. My
structure now looks like this:

typedef struct tagOBJCMD
{
long lId;
BSTR bsName;
BSTR bsDescription;
BSTR bsMonitorItem;
BYTE bState;
long lParameters;
BSTR bsParamName[5];
BSTR bsParamDesc[5];
} OBJCMD;

All the samples I've been able to find that show how to prototype the
call use this format in the IDL:

[id(11)] HRESULT ListCommands2(
[out] VARIANT_BOOL* bEnableDisable,
[out] long* plCommandCount,
[out,size_is(, *plCommandCount)] OBJCMD** ppCmds
);

I still can't get this to work.

Have you actually built and registered proxy/stub DLL? Your use of [id]
attribute suggests that perhaps you are trying to use TLB-driven
marshalling, but your interface is not automation-compatible.

The interface which contains this method is derived from
IDispatch

What for? Your method is not automation-compatible, it can't be called
via IDispatch::Invoke anyway. Don't you get MIDL warnings to that
effect?
--
With best wishes,
Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not
necessarily a good idea. It is hard to be sure where they are going to
land, and it could be dangerous sitting under them as they fly
overhead. -- RFC 1925