[wdmaudiodev] Re: change the volume channel number in win7/vista
- From: Matthew van Eerde <Matthew.van.Eerde@xxxxxxxxxxxxx>
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Thu, 30 Jun 2011 15:57:17 +0000
KSPROPERTY_AUDIO_VOLUMELEVEL is a per-channel property.
For more info see Exposing Multichannel Nodes:
http://msdn.microsoft.com/en-us/library/ff536380(v=VS.85).aspx
Basically, in your basic-support property handler you would need to set
KSPROPERTY_MEMBERSHEADER.MembersCount to the number of channels.
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Wayne Wang
Sent: Thursday, June 30, 2011 5:24 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] change the volume channel number in win7/vista
Hi! There,
I'm maintaining an HD audio driver, and meet a question about the volume
channel number.
It had two channels before, and I want to change to 4 channels.
But I don't know where will affect the volume channel number, or from where the
system gets the volume channel number.
Any suggestion and hint are appreciated.
B.R.
Wayne
Other related posts:
