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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.unix.shell,comp.unix.programmer,comp.lang.misc
Subject: Re: Python (was Re: I did not inhale)
Date: Mon, 19 Aug 2024 23:43:40 +0200
Organization: A noiseless patient Spider
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On 2024-08-19 22:28, Keith Thompson wrote:
> "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> writes:
>> On 2024-08-19 10:45, Lawrence D'Oliveiro wrote:
>>> On Mon, 19 Aug 2024 09:37:39 +0200, Dmitry A. Kazakov wrote:
> [...]
>>>>> And single drive letters?
>>>>
>>>> They are dozens characters long actually, if you mean the device names.
>>> Drive names are only single letters. You’re not talking about
>>> reserved
>>> file names, are you?
>>
>> No, I am talking about proper file paths under Windows. Letters is a
>> DOS layer on top of it. E.g. see QueryDosDeviceW call.
> 
> OK, I tried a test program that invokes QueryDosDeviceW() on L"C:".
> The result was "\Device\HarddiskVolume4".  (That's not a C string
> literal.  It contains two single backslash characters.)
> 
> What can I do with that string?

You can use it in CreateFile. In fact there are cases when you should. I 
remotely remember a problem determining if the file is same and opening 
it. It failed miserably on letters created by the SUBST command.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de