PX_GET_MAJORVERSION(3) Library Functions Manual PX_GET_MAJORVERSION(3)NAME
PX_get_majorversion -- returns the major version number of the paradox library
SYNOPSIS
#include <paradox.h>
int PX_get_majorversion()
DESCRIPTION
This function can be used to retrieve the major version number of the paradox library.
RETURN VALUE
Returns major version as integer.
SEE ALSO PX_get_minorversion(3), PX_get_subminorversion(3)AUTHOR
This manual page was written by Uwe Steinmann uwe@steinmann.cx.
PX_GET_MAJORVERSION(3)
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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)
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