Apple

PropertyChanged (kAudioUnitProperty_Latency, kAudioUnitScope_Global, 0);

This call notifies *all* listeners about the change, which seems to be what is needed, at least in Logic.

-Howard

On May 31, 2016, at 2:57 PM, Paul Davis <email@hidden> wrote:

On Tue, May 31, 2016 at 5:53 PM, Howard Moon <email@hidden> wrote:
Ok, thanks, Paul. We already tell users to not make this change when the transport is running, but we’ll add this info to our FAQ.

Any thoughts on how to make it work in Logic, though?

If a host doesn't listen to the notification, all you can do is find out when/if they interrogate the plugin for its current latency value. If the host developer(s) don't want to tell you, and you can't read the source, you're stuck. So pray that someone at Apple will let you know, somehow.

--p