I think with the Async stuff, it either fires up another thread, or keeps
pumping itself by adding messages to the message loop. It may have to do
with the way it uses the TCP/IP (WinSock32) connections - perhaps it sets
this up to run from the message loop.
None of those. Perhaps try
1. Crap ADO coding for MS SQL7 OLE-DB driver
2. Crap ADO coding.
COM being driven off the message loop certainly causes it's fair share of
problems ...
-----Original Message-----
From: Neven MacEwan [mailto:[EMAIL PROTECTED]]
Sent: Monday, November 20, 2000 10:05 AM
To: Multiple recipients of list delphi
Subject: Re: [DUG]: [Q] ADO / MDAC 2.6 / SQL7 Strangeness....
Myles
I understand the mechanisms - I just don't understand why the it says it is
'finished' (probably even fires an event to
say as such) and the object appears to continue changing asynchronously is
it (choose from the list)
1/ M$ Crap Coding
2/ M$ Crap Specification
3/ M$ Crap Documentation
4/ A problem with COM as a spec
5/ A problem with ADO Express
I think 5 is unlikely - I definately get the impression ADO is a 'Work in
progress' it may say
something in the dics but don't believe it until your've tested it
Neven
----- Original Message -----
From: Myles Penlington <[EMAIL PROTECTED]>
To: Multiple recipients of list delphi <[EMAIL PROTECTED]>
Sent: Monday, 20 November 2000 10:03
Subject: RE: [DUG]: [Q] ADO / MDAC 2.6 / SQL7 Strangeness....
> You have got to remember that COM requires a message loop to function.
> Also I had really funny bugs with ADO - there was lots of things I could
not
> do eg Asynchronous procedure calls, msgwaits - from these issues, I could
> see that ADO does some work eg RPC to the server, then waits for a message
> (Or does a SleepEx call) before returning to your calling code. These
issues
> may be particular to the MS SQL7 OLE-DB driver. I ended up with code
calling
> itself from inside ADO etc real messy - had to change how I was doing
things
> to get around the problem.
>
> Myles.
>
---------------------------------------------------------------------------
New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED]
Website: http://www.delphi.org.nz
To UnSub, send email to: [EMAIL PROTECTED]
with body of "unsubscribe delphi"
---------------------------------------------------------------------------
New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED]
Website: http://www.delphi.org.nz
To UnSub, send email to: [EMAIL PROTECTED]
with body of "unsubscribe delphi"
