Re: Controling CoreAudio device volume
Re: Controling CoreAudio device volume
- Subject: Re: Controling CoreAudio device volume
- From: Stéphane Letz <email@hidden>
- Date: Mon, 4 Feb 2008 21:10:28 +0100
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Message: 3
Date: Mon, 4 Feb 2008 10:58:57 -0800
From: Jeff Moore <email@hidden>
Subject: Re: Controling CoreAudio device volume
To: CoreAudio API <email@hidden>
Message-ID: <email@hidden>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed; delsp=yes
The "rules" are (and I'm not being facetious), if the device has a
control, you can use it. If it doesn't have one, you can't.
AudioObjectHasProperty() is your guide. This is true of every kind of
device the HAL supports.
OK, but then why for instance aggregate devices do not implement
AudioObjectHasProperty by redirecting it on the sub-devices?
Thanks
Stephane Letz
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