px_get_fields(3) [debian man page]

PX_GET_FIELDS(3)					     Library Functions Manual						  PX_GET_FIELDS(3)

NAME

       PX_get_fields -- Returns array of field definitions in Paradox file

SYNOPSIS

       #include <paradox.h>

       pxfield_t *PX_get_fields(pxdoc_t *pxdoc)

DESCRIPTION

       Returns	the  meta data of all fields. This function is identical to the call of PX_get_field(3) with a record number 0, but you should for
       further releases not rely on it.  Sie PX_get_field(3) for a definition of pxfield_t.

RETURN VALUE

       Returns pointer to field array on success and NULL on failure.

SEE ALSO

       PX_get_record(3), PX_get_field(3)

AUTHOR

       This manual page was written by Uwe Steinmann uwe@steinmann.cx.

																  PX_GET_FIELDS(3)

PX_RETRIEVE_RECORD(3)					     Library Functions Manual					     PX_RETRIEVE_RECORD(3)

NAME

       PX_retrieve_record -- Returns record in Paradox file

SYNOPSIS

       #include <paradox.h>

       pxval_t ** PX_retrieve_record(pxdoc_t *pxdoc, int recno)

DESCRIPTION

       Returns the record with the given number in a Paradox file. The first record has number 0, the last one has number_of_records-1.

       If you are accessing several records, do it in ascending order, because this is the most efficient way.

       The return value is an array of field values. Each value is stored in a structure like the following:

       typedef struct px_val pxval_t;
       struct px_val {
       char isnull;
       int type;
       union {
       long lval;
       double dval;
       struct {
       char *val;
       int len;
       } str;
       } value;
       };

       The  element  isnull  is  set  to  1 if the value is NULL otherwise it is set to 0. type 	       is the type of the paradox field as
       defined in paradox.h.  A field value can be either a long int, a double or a string, depending on the paradox field type. The paradox field
       types  pxfShort,  pxfLong,  pxfDate,  pxfTime,  pxfLogical,  and  pxfAutoInc are returned as long int values.  pxfTimestamp, pxfNumber, and
       pxfCurrency are returned as double values and all remaining paradox field types are stored as strings with the length in value.len. You can
       rely on strings being Null terminated. Blobs are stored as string but are not guarented to be Null terminated.

       The  paradox  field  types  pxfTimestamp,  pxfTime,  an	pxfDate  use an uncommon format which can be converted into a string with PX_time-
       stamp2string(3), PX_time2string(3), and PX_date2string(3).

RETURN VALUE

       Returns a pointer on success and NULL on failure.

SEE ALSO

       PX_update_record(3), PX_timestamp2string(3), PX_time2string(3), PX_date2string(3)

AUTHOR

       This manual page was written by Uwe Steinmann uwe@steinmann.cx.

															     PX_RETRIEVE_RECORD(3)