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Default output device changes - how to be notified?

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Default output device changes - how to be notified?

Subject: Default output device changes - how to be notified?
From: Roni Music <email@hidden>
Date: Sun, 20 May 2007 19:03:37 +0200

Hi,

My player uses the default output device.

How can I be notified when a user changes the default output device in the system preferences?

I've added a listener to check if a user removes a device (for example unplugging a USB headset)

	OSStatus err = AudioDeviceRemovePropertyListener(m_theOutputDevice,
                                    kAudioPropertyWildcardChannel,
                                    false,
                                    kAudioDevicePropertyDeviceIsAlive,
					MyListener);

which works OK.

But how do I "listen" to a device change?

Thanks,
Rolf

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