Description

   The SCA$GET_ATTRI_VALUE_T routine returns the value of any
   attribute as a character string.

   If the handle describes an attribute, then this routine returns
   the value of that attribute. In this case, the attribute_kind
   parameter must not be specified.

   If the handle describes an entity, then this routine returns the
   value of the first attribute of that entity that is of the kind
   specified by the attribute_kind  parameter. In this case, the
   attribute_kind parameter must be specified.

   If you want to get more than one attribute value of a particular
   kind for an entity, you must use the routine SCA$GET_ATTRIBUTE.
   This applies only to the attribute kinds SCA$K_ATTRI_NAME and
   SCA$K_ATTRI_ALL.

   The value of any kind of attribute can be returned by this
   routine, except for SCA$K_ATTRI_ALL. This routine will convert to
   character string those attributes whose data type is not character
   string.

   This routine does not accept the attribute-kind SCA$K_ATTRI_ALL as
   the value of the attribute_kind parameter. It is not meaningful to
   get just the first attribute without regard to attribute-kind.