In BBj 7.0 and higher, this BBjInputNSpinner method returns the next value to which the spinner would spin up.
Returns the next value to which the spinner would spin up or null() if the next value would be larger than the current maximum.
This method returns a BBjNumber, but it may return NULL(). Assigning NULL() to a numeric variable or attempting to compare NULL() to a numeric value will cause an error. Instead, assign the return value of this method to an object variable and test against NULL() before comparing to a numeric value.
See the BBj Object Diagram for an illustration of the relationship between BBj Objects.