Setting an Inteface value from container

[Lindon]

..so I want to read an incoming MIDI number - check it against an array and display the name of the articulation in the interface.

In the script processor of the Master(top most) container I already have a script called "Interface", so I've added another called Script Processor1

..and added these lines of code:

function onNoteOn()
{
    
	var found_acoustic_articulation;
	var acoustic_name_map = [0,12,14,16,17,19,21,23,24,26,28,29,31,33,35,36,38,40,41,43,45,47,48,50,52,53,55,57,59,60,62,64,65,67,69,0,72,74,76,77,79,81,83];
	found_acoustic_articulation = acoustic_name_map.indexOf(Message.getNoteNumber());
	Console.print("at pos:" + found_acoustic_articulation);
	// Content.getComponent("Articulations_ACOUSTIC").setValue(found_acoustic_articulation);
}

So as we can see from the last line I want the widget in the overall interface (called : articulations_ACOUSTIC) to change its value based on the midi note coming in...

But... HISE cant find it.

How do I reference a widget in the overall interface (and change its value) ?

Or alternatively what do I type in the on init of the main interface to get some action undertaken on note on? I surely cant use the on note call back in the main interface - it never fires.

[d.healey]

Why don't you put that code in your main interface script?

Think you edited the post after I posted or I didn't read your post properly

Yes the on note in the main interface does fire.

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[Lindon]

Wow this is SOOO frustrating - now the on note is firing in the main interface,....but I had to reload the entire project to make it do it.

[Lindon]

@d-healey thanks anyway.

[d.healey]

In all my projects I defer the callbacks in the interface script and do all real-time stuff in sub scripts. I was working on a project yesterday that used key switching, which is obviously real-time, so I put it in a sub-script. However I wanted the keyswitch to update the GUI.

My solution was to have a global variable called articulationID and whenever a keyswitch was pressed the sub-script would update this variable with a number that referenced the selected articulation. In the interface script's onNote callback I put a simple check to see if the value of the global variable had changed and if it has I update the GUI appropriately.

[Lindon]

@d-healey Yes I'm begining to think Globals are the way to go for a lot of things...

[d.healey]

@Lindon Not necessarily. I generally try to avoid them because it can make scripts trickier to debug and maintain at a later date.

My keyswitches for example work by enabling/disabling samplers using MIDI muters so instead of using a global variable I could have checked the state of the muters. But for this particular use case I applied a kind of Occam's razor approach and decided a global was right.

[Lindon]

@d-healey yes I think there are cases (and I have one) where this is the way to go... now I've tried this but I cant seem to get my container to recognise my Global variable, here's what I've done:

in my Interface on Init I said:

var triggerNote;

in my control call back I say:

inline function onArticulations_TRIGGER_ELECTRICControl(component, value)
{
	triggerNote = -99;
	Console.print("set up:" + triggerNote);
};

and this prints to the Console nicely...

in my containers on note call back I say:

function onNoteOn()
{
	Console.print(triggerNote);
}

and I get this error message:

Script Processor_TRIGGER:! onNoteOn() - Line 3, column 15: API call with undefined parameter 0

• so triggerNote is undefined for my on note container call back - how do I reference globals then?

Do I need to referece my Interface script somehow? Im mystifid as usual. How can something as simple as global variables be this hard?

[Lindon]

D*mn it! I hate people who ask questions without first searching the forum...

https://forum.hise.audio/topic/15/fr-global-variables-scripting-api/8

Still, yet another undocumented feature...to add to Christoph's list

[d.healey]

@Lindon I think it is documented in the blog posts

[Lindon]

@d-healey yeah because blog-posts = documentation