Fwd: Volume property is unknown
Fwd: Volume property is unknown
- Subject: Fwd: Volume property is unknown
- From: Bob Peterson <email@hidden>
- Date: Sat, 14 Jul 2001 07:49:28 -0400
oh. nevermind.
My utility routine was always using channel zero, ignoring its channel
argument. Blush.
Begin forwarded message:
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From: Bob Peterson <email@hidden>
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Date: Fri Jul 13, 2001 10:26:14 US/Eastern
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To: email@hidden
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Subject: Volume property is unknown
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I call AudioGetDeviceProperty to get kAudioDevicePropertyVolumeScalar
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from my iBook SE's sole output device, "Built-in audio controller". No
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matter what channel I use (0, 1, 2) is get status "Unknown property".
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How can that be?
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I have glanced at the HALRoutines.c file of the sample Daisy, but it
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doesn't clue me. Daisy certainly shows volume sliders (though I can't
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tell if they work since I can't find an AIFF file it will load).
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