> /*! \brief Extract the public data files from a SIS image and parse the content.
>  *
>  * This function will extract the two public files - the PBDF (Public Data File) and the
>  * ISDF (Issuer Data File) - from the SIS image. PBDF and ISDF are parsed and the relevant
>  * data fields are made available in 2 data structures, resp. of type Pbdf and Isdf.
>  *
>  * \param pucBuffer    the buffer (SIS_LEN bytes) containing the SIS card image read
>  * \param pxPbdf       the resulting PBDF file
>  * \param pxIsdf       the resulting ISDF file
>  *
>  * \note  dates are always in "YYYYMMDD" format
>  *
>  * \return ERR_OK if ok
>  * \return ERR_PARAM if parameter error
>  * \return ERR_BNCS if SIS parse error
>  * \return ERR_INTERNAL if internal error
>  *
>  */
>SISPUBLIC_API SisPublicError SisPublicParse(const unsigned char *pucBuffer, Pbdf *pxPbdf, Isdf *pxIsdf);
>

#define SIS_LEN        404
#define BCDDATE_LEN    (8+1)
#define FIDN_LEN       (4+1)
#define FSKI_LEN       (2+1)
#define FCTF_LEN       (8+1)
#define FCSM_LEN       (2+1)
#define PBDF_NAME_LEN  (48+1)
#define PBDF_SNME_LEN  (24+1)
#define PBDF_SSIN_LEN  (11+1)
#define PBDF_INIT_LEN  (1+1)
#define PBDF_SEXE_LEN  (1+1)
#define ISDF_SSIN_LEN  PBDF_SSIN_LEN
#define ISDF_CNME_LEN  (10+1)
#define ISDF_CLAN_LEN  (1+1)
#define ISDF_CLGN_LEN  (10+1)

*! Public Data File
*
*
*typedef struct
*{
*unsigned char FIDN[FIDN_LEN];       //!< File Identification Number(0012)            5
*unsigned char FSKI[FSKI_LEN];       //!< File Secret Key Index                       3
*unsigned char SSIN[PBDF_SSIN_LEN];  //!< Social Security Identification Number      12
*unsigned char DCDT[BCDDATE_LEN];    //!< Data Capture Date                           9                      
*unsigned char NAME[PBDF_NAME_LEN];  //!< Holder's Firstname                         49
*unsigned char SNME[PBDF_SNME_LEN];  //!< Holder's Surname                           25
*unsigned char INIT[PBDF_INIT_LEN];  //!< Holder's initial                            2
*unsigned char SEXE[PBDF_SEXE_LEN];  //!< Holder's Sex                                2
*unsigned char BRDT[BCDDATE_LEN];    //!< Holder's Birthdate                          9
*unsigned char FCTF[FCTF_LEN];       //!< File Certificate                            9
*unsigned char FCSM[FCSM_LEN];       //!< File Checksum                               3
*} Pbdf;                                                                          -----
*                                                                                   128
*! Issuer Data File
*
*/
*typedef struct
*{
*unsigned char FIDN[FIDN_LEN];       //!< File Identification Number
*unsigned char FSKI[FSKI_LEN];       //!< File Secret Key Index
*unsigned char SSIN[ISDF_SSIN_LEN];  //!< Social Security Identification Number
*unsigned char DCDT[BCDDATE_LEN];    //!< Data Capture Date
*unsigned char CNME[ISDF_CNME_LEN];  //!< Card Name
*unsigned char CLAN[ISDF_CLAN_LEN];  //!< Card Language
*unsigned char CLGN[ISDF_CLGN_LEN];  //!< Card Logical Number
*unsigned char CBDT[BCDDATE_LEN];    //!< Card Begin Date
*unsigned char CEDT[BCDDATE_LEN];    //!< Card End Date
*unsigned char FCTF[FCTF_LEN];       //!< File Certificate
*unsigned char FCSM[FCSM_LEN];       //!< File Checksum
*} Isdf;

Try:
<pre>
DECLARE LONG SisPublicParse IN SisPublic.dll STRING @, STRING @, STRING @
STORE REPLICATE(CHR(0), SIS_LEN) TO lcTest
STORE REPLICATE(CHR(0), 128) TO lcPbdf, lcIsdf
? SisPublicParse(@lcTest, @lcPbdf, @lcIsdf)
? lcTest
? lcPbdf
? lcIsdf