[wdmaudiodev] Re: Format of endpoint id returned by pIMMDevice->GetId(&guid);

  • From: "Gary Daniels" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "Gary.Daniels" for DMARC)
  • To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Mon, 5 Aug 2019 16:34:23 +0000

This should be treated as an opaque string by developers.

As you've already surmised, the GUID corresponds to the GUID used in the 
mmdevices data store. The preceding block is about what kind of endpoint it is, 
like is it local or remote, terminal services information, which terminal 
services client (Windows Server edition), flow, etc. This string could be 
changed at some point in the future if needed, so you should not take any 
dependency on the format of it or do any parsing of it.

Gary Daniels
Microsoft audio silicon


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________________________________
From: wdmaudiodev-bounce@xxxxxxxxxxxxx <wdmaudiodev-bounce@xxxxxxxxxxxxx> on 
behalf of Artem <smirnoff.artem@xxxxxxxxx>
Sent: Monday, August 5, 2019 1:49 AM
To: wdmaudiodev@xxxxxxxxxxxxx <wdmaudiodev@xxxxxxxxxxxxx>
Subject: [wdmaudiodev] Format of endpoint id returned by 
pIMMDevice->GetId(&guid);

Hi!

While enumerating endpoints I'm getting endpoint string as following:

{0.0.0.00000000}.{ca9fa848-1e60-401c-81e6-323546335d0a}

What is the meaning of {0.0.0.00000000}. preceding real guid of an endpoint?

regards,
Artem
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