For debugging purpose, do this:

Create a global public variable in wndcontrol, initialize it to false.
>From your thread exceute, just after threaddetach, set it to true.
>From the routine where the window handle is allocated (I haven't the code
here, I do from my head), add this:
if MyGlobalVar then
    OutputDebugString('Got it');
Then place a breakpoint on the OutputDebugString line and run your program.
When (if) the breakpoint is hit, have a look at the stack trace to
understand where it comes from.

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----- Original Message ----- 
From: "Arno Garrels" <[EMAIL PROTECTED]>
To: "ICS support mailing" <>
Sent: Thursday, June 22, 2006 9:37 PM
Subject: Re: [twsocket] V6 ThreadDetach #2

> Arno Garrels wrote:
> > Francois PIETTE wrote:
> >>> Not sure what you mean. The problem is that even if you call
> >>> ThreadDetach (which is to make the component windowless) you cannot
> >>> be sure that the component will not allocate another window handle
> >>> somewhere in the background
> >>> after that call to ThreadDetach.
> >>
> >> I don't see how the component would create another window handle once
> >> ThreadDetach has been called: no event will be generated anymore.
> >> Only the currently executing event will continue execution ans far as
> >> memory serve me well, no event recreate a window handle.
> Typo, sorry!
> Correction:
> If so, why do I get this exception? ThreadDetach is executed and
> property Handle is set to zero. Nevertheless the exeption is raised.
> So a window handle must have been allocated after the call to ThreadDetach
> somewhere. Please tell me what might be wrong with the very simple
> code I posted before. There's no deadlock, sure. Especially not if
> you exchange WaitFor by WaitForSingleObject. Also, as far as I can
> see entire methode ThreadDetach is blocking, so the thread shouldn't
> signal before the window handle was set to zero, right?
> -- 
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