Change ownership of a variable between resources?

[Olle Risk]

Alright so I have two resources A and B, in A I define a variable:

local myVariable = nil 

In B I have a function that creates an object and assign it to a variable, (the function is exported)

function makeWindow() 
    local myVariable = guiCreateWindow(blahblahblah) 
end 

Now, is it possible to pass myVariable from A to the function in B as an argument, assign the object to the variable defined in A then somehow return it back to A?

Why would I do this? Well this object is big and needs to be accessed by multiple resources and I don't wanna include it into all resources, I want it to be owned by the resource that calls the export (A) so that it doesn't get removed once I restart B.Is this possible?

[IIYAMA]

Objects that are created by scripting are bounded to the resourceDynamicElementRoot. Once that element is destroyed it will take all his children with him.

When you stop a resource, the resourceRoot is destroyed, which means that all children bellow are destroyed too.

It works like this:

• resourceRoot
  
  • resourceDynamicElementRoot
    
    • Elements created by scripting

getResourceMapRootElement

• Map elements

Wiki:

Afaik, you can't edit this with setElementParent.

You will have to initialize the elements again once you start it.

[JR10]

-- RESOURCE A 
local myObject = createObject(...) 
myObject = exports.B.manipulateObject(myObject) 
  
-- RESOURCE B 
function manipulateObject(object) 
 local anotherObject = createObject(...) 
 return anotherObject 
end 

You can send and return any element. So, yes, you can do that.

IIYAMA's explanation is irrelevant to your scenario here, if I understood you correctly.

[Olle Risk]

Thanks JR10, that was similar to what I was looking for, but It's still not exactly what I'm trying to do, let's assume this object is a large image created by guiCreateStaticImage in resource B. Using your example with a few modification, would this work?

-- RESOURCE A 
local myObject = nil 
myObject = exports.B.manipulateObject(myObject) 
  
-- RESOURCE B 
function manipulateObject(object) 
    object= guiCreateStaticImage(...) 
    return object 
end 

I mean, would this let resource A be the owner of this image so that if I restart B this image won't disappear from A?

[JR10]

No, it won't. It will still be destroyed, which, in this case, IIYAMA's explanation is correct.

Maybe try telling us what you need to achieve here?

[IIYAMA]

He could try to create all elements in 1 resource.

-- RESOURCE A 
local myElement = nil 
local elementCustomName = "HelloWorld!" 
myElement = exports.B.createElementForResource( 
    elementCustomName, -- a custom name for your element, to prevent multiply elements of the same use. 
    createObject, -- the functions you want to execute 
    bla,bla,bla,bla -- arguments 
) 
  
-- RESOURCE B 
local customElementNames = {} 
function createElementForResource(...) 
    if isElement(customElementNames[elementCustomName]) then 
        return customElementNames[elementCustomName] 
    else 
        local data = {...} 
        local elementCustomName = data[1] 
        table.remove(data,1) 
        local functionInUSe = data[1] 
        table.remove(data,1) 
  
        local element = functionInUSe(unpack(data)) 
        if element then 
            customElementNames[elementCustomName] = element 
            return element 
        end 
    end 
    return false,"Element failed to create." 
end 

As long this(B) is the only resource the is running, it will work.

[Olle Risk]

Guess I have to find another way then, thanks anyway