Re: fire event & IUnknown

From: Alexander Nickolov (agnickolov_at_mvps.org)
Date: 01/28/05 

Date: Fri, 28 Jan 2005 09:33:57 -0800

Is your client single-threaded or multi-threaded? Does switching
the client's threading model change anything?

I suspect you have some kind of marshaling problem. How
do you fire from the worker thread? I hope not directly,
since that's most likely your problem right there. GIT would
be most versatile. 

-- 
=====================================
Alexander Nickolov
Microsoft MVP [VC], MCSD
email: agnickolov@mvps.org
MVP VC FAQ: http://www.mvps.org/vcfaq
=====================================
"brian" <brianfakemail@yahoo.com> wrote in message 
news:1106917366.549668.153410@z14g2000cwz.googlegroups.com...
>> Try providing an explicit _ATL_FUNC_INFO structure with
>> SINK_ENTRY_INFO instead of SINK_ENTRY_EX.
> Does not work.
>
> But I've gotten further. Really the problem is the multi-threaded
> apartment. I have created a test solution. It contains one server and
> one client ATL projects. The client project consists of one ATL ActiveX
> object - the sink. The server project consists of two objects. The
> first object is a single-threaded ATL simple object. The second one is
> a multi-threaded ATL simple object. They both have their own trigger
> method with exactly the same implementation.
>
> The client creates and advises them.
>
> In the test container:
> - the triggered event from STA object is successfully handled within
> the client;
> - triggering the event from MTA object failed with E_UNEXPECTED.
>
> So, the threading model is causing the event to fail. However I am
> really curious why the rest events have been successfully fired from my
> original multi-threaded object (refer my previous posts) and only this
> one (with IPictureDisp interface pointer) has failed.
>
> My question now is how to work around this limitation, since:
> - I do need worker threads, thus I have to use multi-threaded
> apartment;
> - I do need to fire events from within worker threads;
> - finally I do need to use IPictureDisp or similar interface.
> Any further tips are appreciated.
> Thanks.
>

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