On 5/18/07, Vitaliy <spam@maksimov.org> wrote:
>
>
> My name really is "Vitaliy", without the "t" -- it's not a typo. ;-)


I'm very sorry Vitaliy. I'm suffering dyslexia and memory disorders at the
same time <grin> :-)

Tamas


> Unfortunately I have no Delhpi on my computer, just downloaded the source
> > code for TurboPower Async Pro library and had a quick glance on
> > IsPortAvailable function. Do you know exactly which line causes the
> error?
> > Is that possible that TApdWin32Dispatcher.Create fails so that
> DeviceLayer
> > remains nil therefore when it it throws an exception DeviceLayer.Freewill
> > hangs your app? If yes the obvious solution is to check if that
> > DeviceLayer
> > is nil or not before referencing to it. If that Create function does not
> > throws an exception but leaves DeviceLayer nil when fails then it is
> > another
> > issue so check that value before using it.
> >
> > If the error is somewhere else just delete my mail :-)
>
> There was no error. The program would simply stop responding. However,
> after
> some fiddling I found that the program will eventually unfreeze (it takes
> about 4 minutes per port).
>
> A colleague pointed out that HyperTerminal enumerates the ports instantly,
> so I ran the process monotor (mentioned a few days earlier on this list),
> and found that HT grabs the list directly from the Registry. Now I'm doing
> the same, and the enumeration problem is gone.
>
> I would like to find a solution for being able to not "hang" the program
> when I actually open a BT port for writing.
>
> VItaliy
>
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