Searchfield_gf – Argox PA-20 Programming Guide User Manual
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PT-20 Programming Guide
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recordno, char* R_Buffer, int flag);
Example call：
char str[8]=”abcdefg”,str_buffer[60];
SearchField_GR(&fsearch, str,0,0, str_buffer,FORWARD);
Includes：
#include “DBMS.h”
Description： This function can search and contrast the data of appointed field. After
success, reading the record which includes this field.
Several describe the argument as follows:
argument
description
_DBMS* F_Search
The file’s searching structure that has been
initialized.
char* field
String data wanted to match.
int search_fieldno
Field wanted to search.
int recordno
Begin to search from which data.
char* R_Buffer
After contrast success, it will write record
which included this field into buffer.
int flag
FORWARD => Search from forward to
backward
BACKWARD => Search from backward to
forward
As success of searching, the file index will
stay in successful record front. When
search defeat, the file index will not be
moved.
Returns：
When “R _ Buffer = NULL”, pass back – 1: Search defeat; Pass other
value back: That is the size of space for buffer.
When “R _ Buffer ≠ NULL”, pass back – 1: Search defeat; Pass other
value back: That is the record position which confirm to contrast data.
Purpose： Search the designated field. After success, acquiring the appointed field
in including the field’s record.
Syntax： int SearchField_GF(_DBMS* F_Search, char* field, int search_fieldno, int
recordno, int get_field_no, char* F_Buffer, int flag);
Example call：
char str[8]=”abcdefg”,str_buffer[60];
SearchField_GF(&fsearch, str,0,0,1,str_buffer,FORWARD);
Includes：
#incl
ude “DBMS.h”