{
{   The purpose of this request is to get selected information about a
{ variable.
{
{       FDP$GET_VARIABLE_ATTRIBUTES (FORM_IDENTIFIER, VARIABLE_NAME,
{         GET_VARIABLE_ATTRIBUTES, STATUS)
{
{ FORM_IDENTIFIER: (input)  This parameter specifies the form identifier for
{       the instance of the form.
{
{ VARIABLE_NAME: (input)  This parameter specifies the name of the variable.
{
{ GET_VARIABLE_ATTRIBUTES: (input/output)  This parameter specifies an array of
{       attributes to get.
{
{ STATUS: (output) This parameter specifies the name of the variable to set to
{       indicate the status of the request.
{
{       condition identifiers: fde$bad_data_value
{                              fde$invalid_address
{                              fde$invalid_form_identifier
{                              fde$invalid_variable_attribute
{                              fde$invalid_variable_name
{                              fde$system_error
{                              fde$string_too_small
{                              fde$unknown_variable_name
{
