Instance Property


A callback to the host for musical context information.


var musicalContextBlock: AUHostMusicalContextBlock? { get set }


An audio unit accessing this property should cache it in realtime-safe storage before beginning to render.

This version 3 property is bridged to the version 2 HostCallback_GetBeatAndTempo and HostCallback_GetMusicalTimeLocation callback members in the kAudioUnitProperty_HostCallbacks API.

See Also

Host Callbacks

var transportStateBlock: AUHostTransportStateBlock?

A callback to the host for transport state information.

var contextName: String?

Information about the host context in which the audio unit is connected, for display in the audio unit’s view.