[wdmaudiodev] Correlation of DSound device with PnP device ID
- From: Art Edwards <ntdev@xxxxxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Thu, 10 Jul 2003 16:58:56 -0400
Please disregard my earlier post. I finally understand how to use the
SetupDiXxx functions to do this. Duh !
I am curious about something though. In the DSEnumCallback function, where
does the lpGuid ("GUID that identifies the DirectSound driver") come from ? It
appears to be generated dynamically (on WinXPSP1 at least). Is there any
documented use for it other than as a parameter to DirectSoundCreate ?
>Does anyone know how to correlate a DirectSound device with the PnP ID of the
>hardware ?
>
>I would like my application to run only on certain hardware.
>
>I know I could test the lpcstrDescription parameter in my DSEnumCallback
>routine. For example:
>
> if (strcmp (lpcstrDescription, "My Device Name"))
> {
> // don't wanna use this device...
> }
>
>But, I would like to be a bit more certain that it's really the correct
>device. So, I'd like to (somehow) get the hardware ID (e.g.
>VEN_1234&DEV_5678&SUBSYS_AA55AA55&REV_01) associated with the device and do a
>strcmp or regular expression match on that instead.
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