[APBeta] AP V2 / Windows VISTA / connecting a telescope

[Paul Rodman]

On Jun 19, 2008, at 07:02 , Paul Rodman wrote:

> On Jun 19, 2008, at 06:01 , Dieter Welnowski wrote:
>
>> Hallo Paul,
>> I found another problem: in RESOURCES/TELESCOPES:  I have installed  
>> Meade: LX200 Classic. When I go to EDIT..., I get the report: KEINE  
>> RÜCKMELDUNG = NO RESPONSE and then only after many minutes a new  
>> window for some settings, a very long time. Same result is by my  
>> Celestron: CGE and when I chose ASCOM Driver. Is that ok?
>
> I wonder if this is related to the old problem of serial port  
> enumeration taking a long time if Bluetooth is set up, but no  
> Bluetooth device is connected. That's the only explanation I can  
> think of. If so, it's bad news. I was hoping that problem had gone  
> away with the latest compiler.
>
> I will attempt to see if I can install Bluetooth here.

One approach I could take is to enumerate the serial ports in an  
invisible thread, starting at application launch (since the problem  
only seems to occur the first time you do this). Hopefully, by the  
time a user actually gets to do something that enumerates serial  
ports, the thread will be finished, and the user won't see the  
problem. Let me try that for the next release and see if it fixes  
things.

However, threads are non-preemptive, so there's a chance that the  
whole app will still hang up. Doesn't hurt to try though.

Paul R.