Trying to get my head around subscribing to the event listeners coming with cpAPIInterface. I am able to subscribe to CPAPI_VARIABLEVALUECHANGED event listener, specifying the variable that I want to monitor through a parameter; e.g.:
However, Adobe's documentation here says that providing that parameter would actually be optional:
From that I understand that it should be possible to omit it and have the event listener listening to all variables at the same time, firing whenever one of them experiences a change of value. Can't get it to work though. Does it just read 'optional' because it's not required for all other event listeners in the cpAPIEventEmitter Object, but is still required for the CPAPI_VARIABLEVALUECHANGED event listener?