How to pass variable by reference in javascript? Read data from ActiveX function which returns more than one value

Question

I have a ActiveX object which I want to use in the browser (javascript).
There is a function I want to call. Its prototype is:

function TOPOSFiscalPrinte         


        

Answer 1

Make a global variable or object. Or if you're worried about other funcs accessing and changing the variables then make a singleton. The other option is to return an object. Such as like this

function TOPOSFiscalPrinter.DirectIO(Command: Integer; var pData: Integer;
  var pString: WideString): Integer;

function TOPOSFiscalPrinter.DirectIO(Command, pData, pString){
    ....

    var pObj = {
        d: 0,
        s: '',
        code: ''
    }
    pObj.d = pDataAltertedValue;
    pObj.s = pStringAltertedValue;
    pObj.code = code;
    return pObj;
}

function test() 
{
    var d=1, s="DIRECIO:";
    var r = opos.DirectIO(1024, d, s);
    code = r.code;
    d = r.d;
    s = r.s;



    alert(d); alert(s);
}