Get the value of a custom property of integer or boolean type.
AK_PartialSuccess if the object was found but no matching custom property was found on this object. Note that it could mean this value is the default value.
Object ID, this is the 32bit ShortID of the AudioFileSource or Sound object found in the .wwu XML file. At runtime it can only be retrieved by the AK_Duration callback when registered with PostEvent(), or by calling Query::QueryAudioObjectIDs() to get all the shortIDs associated with an event.
Property ID of your custom property found under the Custom Properties tab of the Wwise project settings.