.TH "PX_RETRIEVE_RECORD" "3" 
.SH "NAME" 
PX_retrieve_record \(em Returns record in Paradox file 
.SH "SYNOPSIS" 
.PP 
#include <paradox.h> 
.PP 
pxval_t ** PX_retrieve_record(pxdoc_t *pxdoc, int recno) 
.SH "DESCRIPTION" 
.PP 
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. 
.PP 
If you are accessing several records, do it in ascending order, because 
this is the most efficient way. 
.PP 
The return value is an array of field values. Each value is stored in 
a structure like the following: 
.PP 
.nf 
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; 
}; 
 
.fi 
.PP 
.PP 
The element \fBisnull\fR is set to 1 if the 
value is NULL otherwise it is set to 0. \fBtype\fR 			is the type of the paradox field as defined in 
\fBparadox.h\fP. 
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 \fBvalue.len\fP. You can rely on strings being Null 
terminated. Blobs are stored as string but are not guarented to be 
Null terminated. 
.PP 
The paradox field types pxfTimestamp, pxfTime, an pxfDate use an 
uncommon format which can be converted into a string with 
\fBPX_timestamp2string(3)\fP, 
\fBPX_time2string(3)\fP, and 
\fBPX_date2string(3)\fP. 
.SH "RETURN VALUE" 
.PP 
Returns a pointer on success and NULL on failure. 
.SH "SEE ALSO" 
.PP 
\fBPX_update_record(3)\fP, 
\fBPX_timestamp2string(3)\fP, 
\fBPX_time2string(3)\fP, 
\fBPX_date2string(3)\fP 		 
.SH "AUTHOR" 
.PP 
This manual page was written by Uwe Steinmann uwe@steinmann.cx. 
.\" created by instant / docbook-to-man