[wdmaudiodev] Re: Can I identifying my audio endpoint?
- From: Frank Yerrace <Frank.Yerrace@xxxxxxxxxxxxx>
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Tue, 17 Oct 2006 15:59:25 -0700
Does your device have its own audio driver? One alternative is to read
PKEY_Endpoint_KsComponentId from the endpoint property store. This returns a
KSCOMPONENTID structure. However, for this endpoint property to have useful
information, the audio driver must support the KS property
KSPROPERTY_GENERAL_COMPONENTID and fill it in with useful information.
Frank Yerrace
Microsoft Corporation
This posting is provided "AS IS" with no warranties, and confers no rights.
________________________________
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Alexandra Schoepel (Ally)
Sent: Tuesday, October 17, 2006 3:27 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Can I identifying my audio endpoint?
Hi guys,
What is the most effective way to identify one's own audio endpoint when using
the IMMDeviceEnumerator? None of the published Audio Endpoint properties seem
to be uniquely tied to the device. The DirectSound GUID
(PKEY_AudioEndpoint_GUID) seems to be a floating value assigned by the OS and
in no way tied to any information in the inf file of the driver. Additionally,
help on the IMMDevice::GetId function states that the information it represents
is opaque and should not be used to obtain information about the device. Any
advice?
Thanks,
Alexandra Schoepel
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