Please ignore: kAudioDevicePropertyDeviceIsAlive notification is never called?
Please ignore: kAudioDevicePropertyDeviceIsAlive notification is never called?
- Subject: Please ignore: kAudioDevicePropertyDeviceIsAlive notification is never called?
- From: Rustam Muginov <email@hidden>
- Date: Wed, 9 Nov 2005 18:37:29 +0300
Please ignore previous message.
I just realized that I should install "per-device" property listener
with "AudioDeviceAddPropertyListener" function
--
Sincerely,
Rustam Muginov
On Nov 9, 2005, at 3:46 PM, Rustam Muginov wrote:
Hello all.
I had installed the notification callback with the following way:
OSStatus PropertyListener( AudioHardwarePropertyID inPropertyID )
{
printf( "PropertyListener called, property %x \'%.4s\'\n",
inPropertyID, &inPropertyID );
return kAudioHardwareNoError;
}
status = AudioHardwareAddPropertyListener(
kAudioPropertyWildcardPropertyID, PropertyListener, NULL );
The return value is 0, and on plugging/unpluggin USB microphone i am
gettin notifications like:
PropertyListener called, property 64657623 'dev#'
PropertyListener called, property 64496e20 'dIn '
PropertyListener called, property 64657623 'dev#'
PropertyListener called, property 64496e20 'dIn '
But i never get kAudioDevicePropertyDeviceIsAlive ('livn') value.
HALLab application also does not show this notification.
I am using OS X 10.3.9 and XCode 1.5 with CoreAudio SDK 1.3.6
Does this mean that kAudioDevicePropertyDeviceIsAlive notification is
never sent?
Thank you.
--
Sincerely,
Rustam Muginov
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