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 :p

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...

FR: Global variables scripting API

If a function references a variable from a script that was deleted, then surely you just throw an error "variable is undefined" What would the code look like...

Forum (forum.hise.audio)

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