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Lim Bio Liong - Professional Profile



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Lim Bio Liong is a Specialist at a leading Software House in Singapore.

Bio has been in software development for over 10 years. He specialises in C/C++ programming and Windows software development.

Bio has also done device-driver development and enjoys low-level programming. Bio has recently picked up C# programming and has been researching in this area.

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GeneralRe: STA's and message pumps in win32.programmer.ole Pin
Lim Bio Liong10-Nov-05 18:43
Lim Bio Liong10-Nov-05 18:43 
GeneralOleMainThreadWndClass in spy++ Pin
Lim Bio Liong10-Nov-05 18:36
Lim Bio Liong10-Nov-05 18:36 
GeneralRe: OleMainThreadWndClass in spy++ Pin
Lim Bio Liong10-Nov-05 18:37
Lim Bio Liong10-Nov-05 18:37 
GeneralRe: OleMainThreadWndClass in spy++ Pin
Lim Bio Liong10-Nov-05 18:38
Lim Bio Liong10-Nov-05 18:38 
GeneralRe: OleMainThreadWndClass in spy++ Pin
Lim Bio Liong10-Nov-05 18:39
Lim Bio Liong10-Nov-05 18:39 
GeneralRe: OleMainThreadWndClass in spy++ Pin
Lim Bio Liong10-Nov-05 18:40
Lim Bio Liong10-Nov-05 18:40 
GeneralQuestion about IRpcChannelBuffer From MSDN COM Newsgroup Pin
Lim Bio Liong10-Nov-05 18:35
Lim Bio Liong10-Nov-05 18:35 
GeneralRe: Question about IRpcChannelBuffer From MSDN COM Newsgroup Pin
Lim Bio Liong10-Nov-05 18:35
Lim Bio Liong10-Nov-05 18:35 
Reply :

See inline.

--
=====================================
Alexander Nickolov
Microsoft MVP [VC], MCSD
email: agnickolov@mvps.org
MVP VC FAQ: http://www.mvps.org/vcfaq
=====================================

"mysteron" <billg@microsoft.com> wrote in message
news:utgI$oZ5FHA.632@TK2MSFTNGP10.phx.gbl...
> i'm trying to find some decent documentation about how things work down at
> the proxy/stub level in apartment threaded COM ... haven't found much so
> far.
>
> Q: anyone know where I can find a really good detailed description of how
> all that is implemented?

If you manage to find one, I'd love to get the link as well...

>
> Q: in a simple scenario, two STA's in a single process, talking to each
> other -what exactly is COM doing with message queues and worker threads
> inside the proxy/stub? does it boil down to a simple sendmessage from one
> thread to the other .. or is it a postmessage? My understanding is that it
> is the latter.

Both can be used depending on the interface. Normally COM uses
PostMessage, unless the method specifies the [input_sync] attribute.
Very few interfaces use that, mostly ones dealing with OLE and
ActiveX Documents. Alas, it's very poorly documented, you'll be hard
pressed to find any mention of [input_sync] on Microsoft's site. I used
Google to find links.

>
> Q: this isn't a COM question as such but i'd like your opinion on this ..
> two processes A and B are running. They each create a window. At random
> intervals they do a sendmessage to the opposite process. Isn't this a
> clear invitation to deadlock on windows? Same of course if A and B are
> threads in the same process.. right?

No, there's no deadlock. IIRC, SendMessage spins a modal loop
after posting the message to the target thread's message queue.
I believe the loop does not dispatch all messages, but it does let
through other SendMessage calls. You should ask this on a UI
group where the experts are.

>
> TIA
>


GeneralAbout Reference Counting Pin
Lim Bio Liong10-Nov-05 18:21
Lim Bio Liong10-Nov-05 18:21 
GeneralRe: About Reference Counting Pin
Lim Bio Liong10-Nov-05 18:22
Lim Bio Liong10-Nov-05 18:22 
GeneralHow to: Determine If a File Is an Assembly (C# Programming Guide) Pin
Lim Bio Liong27-Oct-05 5:44
Lim Bio Liong27-Oct-05 5:44 
GeneralATL Attributes (a.k.a. Embedded IDL). Pin
Lim Bio Liong21-Oct-05 23:19
Lim Bio Liong21-Oct-05 23:19 
GeneralBasic COM/.NET Interop Techniques Pin
Lim Bio Liong12-Oct-05 2:54
Lim Bio Liong12-Oct-05 2:54 
GeneralRe: Basic COM/.NET Interop Techniques Pin
Lim Bio Liong12-Oct-05 15:03
Lim Bio Liong12-Oct-05 15:03 
GeneralRe: Basic COM/.NET Interop Techniques Pin
Lim Bio Liong18-Oct-05 6:50
Lim Bio Liong18-Oct-05 6:50 
GeneralRe: Basic COM/.NET Interop Techniques Pin
Lim Bio Liong18-Oct-05 8:01
Lim Bio Liong18-Oct-05 8:01 
GeneralSome Interesting Information About Struct Alignment Pin
Lim Bio Liong28-Sep-05 3:50
Lim Bio Liong28-Sep-05 3:50 
GeneralIDispatch Property Setting Pin
Lim Bio Liong9-Aug-05 3:56
Lim Bio Liong9-Aug-05 3:56 
GeneralRe: IDispatch Property Setting Pin
Lim Bio Liong9-Aug-05 4:01
Lim Bio Liong9-Aug-05 4:01 
Generalhow to make MIDL not mangle enum names Pin
Lim Bio Liong8-Aug-05 4:48
Lim Bio Liong8-Aug-05 4:48 
GeneralInterface Shims Pin
Lim Bio Liong17-Jul-05 21:50
Lim Bio Liong17-Jul-05 21:50 
GeneralRe: Interface Shims Pin
Lim Bio Liong17-Jul-05 21:54
Lim Bio Liong17-Jul-05 21:54 
GeneralRe: Interface Shims Pin
Lim Bio Liong17-Jul-05 21:55
Lim Bio Liong17-Jul-05 21:55 
GeneralRe: Interface Shims Pin
Lim Bio Liong17-Jul-05 21:56
Lim Bio Liong17-Jul-05 21:56 
GeneralTake Note when adding a new ATL ActiveX Property Into the Property Map Pin
Lim Bio Liong15-Jul-05 21:28
Lim Bio Liong15-Jul-05 21:28 

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