Event Callbacks for different callback types

[spakment]

Hi,
Is it possible to setup multiple callbacks on events,
eg different callbacks for differnt EVENT_CALLBACK_TYPEs?

Or is it only possible to have a single callback on an event?

Just looking for some clarity as I’m unclear on this from the docs.

I’m trying to setup a callback for programmer instruments and a diffferent callback for markers and beats, eg something along the lines of this:

instrumentCallback = new FMOD.Studio.EVENT_CALLBACK(InstrumentEventCallback);

eventInstance.setCallback(instrumentCallback, FMOD.Studio.EVENT_CALLBACK_TYPE.CREATE_PROGRAMMER_SOUND | EVENT_CALLBACK_TYPE.DESTROY_PROGRAMMER_SOUND);

eventCallback = new FMOD.Studio.EVENT_CALLBACK(BeatEventCallback);
            
eventInstance.setCallback(eventCallback, FMOD.Studio.EVENT_CALLBACK_TYPE.TIMELINE_BEAT | FMOD.Studio.EVENT_CALLBACK_TYPE.TIMELINE_MARKER);

thanks all

[li_fmod]

Hi,

Thank you for sharing the code.

@spakment

Is it possible to setup multiple callbacks on events,

eg different callbacks for differnt EVENT_CALLBACK_TYPEs?

Or is it only possible to have a single callback on an event?

It is indeed possible to set up multiple callbacks flags on the same event instance. I would suggest you to have a look at a similar post which I will link here:

(C#) Calling EventInstance::setCallback with various callbackmasks results in only the last one working

There can only be one callback delegate registered per event. If you wish to receive multiple types of events OR them together. instance.setCallback(m_delegate1, EVENT_CALLBACK_TYPE.STOPPED | EVENT_CALLBACK_TYPE.CREATED); The specific event that triggered the callback is passed as an argument.

Hope it helps, let me know if you have any questions.