How do you use Global Cable?

[griffinboy]

Hey guys,
I'm wondering if anyone can quickly explain how to use:
GlobalCable.registerCallback(var callbackFunction, var synchronous)

It's a line that I found in the documentation, but I'm not sure how to use it.
I am trying to use an LFO that I have programmed in scriptnode, to control a Parametric EQ.
I assumed the best way to do this would be to send the LFO out of scriptnode, using a global cable, and then updating the Parametric EQ whenever the global cable gets updated.
I have successfully sent the LFO through the cable, and I've got an ID for that cable, but I am stuck on how to create a callback for the cable.

Please, and thanks : )

[griffinboy]

@griffinboy

[griffinboy]

This post is deleted!

[griffinboy]

@griffinboy I haven't been able to find other posts that ask about the Global Cable, but perhaps I haven't been searching the right keywords.

[Christoph Hart]

@griffinboy check the data visualisation snippets, there is an example usage of the global cable

[griffinboy]

@Christoph-Hart

Thanks, I'm sorry to ask this but where can I find these snippets?
I've searched through the forums, documentation, and the HISE tutorial files and couldn't see any mention.

[d.healey]

@griffinboy Help > Browse example snippets

[griffinboy]

@griffinboy

Struggling to get it to work, I don't really understand the example code that I'm trying to port.

[griffinboy]

@griffinboy

my failed attempt to try and get the global cable value when the cable value is changed

[Christoph Hart]

This post is deleted!

[Christoph Hart]

@griffinboy you need to connect the mod output to the Value parameter of the global cable node, it doesn't read the audio signal.

[griffinboy]

@Christoph-Hart
Thanks I've hooked that up now!
The thing I'm trying to figure out is how to make a callback that uses my global send node.

I'm still a little confused about how this works in HISE. I've tired to adapt the example that I found in the example snippets, but I've probably butchered it.

[Christoph Hart]

@griffinboy ah just realized you‘re using the wrong node. Use a global_cable node - the global_send node is used to route audio signals not a single parameter event.

[griffinboy]

@Christoph-Hart
Hell yeah!
Thank you it works perfectly now.

And my callback works too.
I shall now have to find out why it works
I probably need to look into HISE syntax more

[griffinboy]

@griffinboy

The working solution:

[griffinboy]

@griffinboy

I'm quite curious about what this part does

[Christoph Hart]

@griffinboy

HISE | Docs

(docs.hise.dev)

You can either register it as synchronous callback or as asynchronous callback. The latter will filter out repetitions and will be called on the UI thread.