What is the difference between "hiCreate....Field" and "ahiCreate.....Field"?

Hi All

Does anyone know the difference between "hiCreate....Field" and "ahiCreate.....Field".

When I look at some codes for special functions provided by Andrew Beckett, I notice that "ahiCreate....Field" functions has been used for creating the form for the special function.

Unfortunately, I did not find any document for this function family.

I also look at all the defined functions in Virtuoso, it's almost one to one between "hiCreate.....Field" and "ahiCreate.....Field".

One thing I notice that, I only defined "string" type of field (code is shown below, follow the code from Andrew), but the content can convert to "integer" or "double" type automatically.

when the value of the field has been evaluated, and used to generate the string by calSpecialFunctionInput('func '(fControlWave fOperator fThreshold fOffValue))

Best Regards

Yi

procedure(SIScreateCalcWaveAndForm()
let((
    fControlWave
    fOffValue
    fOperator
    fThreshold
);local varialble
    fControlWave = ahiCreateStringField(
        ?name 'fControlWave
        ?prompt "Control Wave"
        ?value ""
    );ahiCreateStringField
    fOffValue = ahiCreateStringField(
        ?name 'fOffValue
        ?prompt "Off Value"
        ?value "0.0"
    );ahiCreateStringField
    fThreshold = ahiCreateStringField(
        ?name 'fThreshold
        ?prompt "Threshold"    
        ?value ""
    );ahiCreateStringField
    fOperator = ahiCreateCyclicField(
        ?name 'fOperator
        ?prompt " "
        ?choices list("<" ">")
        ?value ">"
        ?defValue ">"
    );ahiCreateCyclicField
    
    calCreateSpecialFunctionsForm('SIScalcWavePassGateForm
        list(
            list(fControlWave   0:00    380:20      90)
            list(fThreshold     0:30    280:20      90)
            list(fOperator      350:32  30:20       1)
            list(fOffValue      0:60    380:20      90)
        );list
    )
    ;printf("form is created\n")
);let
);proc