* 			:---------------------------------------
      * ------------------------: Copybook for GetUserName
      * 			: See the documentation for details.
      * 			:---------------------------------------
      *
      * 			: Note: This API retrievs the name of
      * 			:	the currently logged in user.
      * 			:	Usefull if you need to keep
      * 			:	track of where transactions
      * 			:	originate.
      *  To use:
      *
      * -----Get Computer Name Example	      -----------------------
      *      COPY WIN32API.
      *      COPY GETUSRNM.
      *        .
      *        .
      * ------------------------: Call the API to get the value
      *
      *    SET API-GETUSERNAME	      TO TRUE.
      *    CALL 'GSWINAPI' USING WIN32API-PARMS
      * 			 API-USER-NAME
      * 			 WIN32API-B
      * 			 WIN32API-C
      * 			 WIN32API-D
      * 			 WIN32API-E
      * 			 WIN32API-F.
      *
      * ------------------------: If function failed,
      * 			:   display a textual error message.
      *
      *    IF WIN32API-FAILED
      *      MOVE WIN32API-ERROR-TEXT TO my-error-message
      *      do whatever to display my-error-message.
      *
      *
      * 			: This returned value will be a
      * 			: low-value terminated string. The exact
      * 			: length (including the low-value) will
      * 			: be found in WIN32API-RC
       01  API-USER-NAME	      PIC X(260).