Resolved Get the text displayed from interface components

I'm trying to read a string from the blast furnace bar dispenser interface ("Coal in furnace: 130"), this is in the interfacecomponent [27,107] I suspect. But when I try to use .getText() it returns "Coal to add: %2". This is a really annoying problem that I run into all the time.

Is there any way to get the string that's displayed on screen (or the value 130)?

Screenshot of blast furnace bar dispenser interface
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I know but I pretty much went through all the components / childeren / parents and found nothing.

 

Thats what I've been doing now but I was just wondering if there was any way to do this, for example you made a motherlode bot right? The sack in the top left also displays a number. It's kinda the same problem. But you probably just work around it instead of using that number?

 

Thanks, looked into varbits for the first time and this was indeed what I needed!