Argox PA-20 Programming Guide - Manual (Page 60)

PT-20 Programming Guide 58
Syntax： int Close_Search(_DBMS* F_Search);
Example call： Close_Search(&F_Search);
Includes： #include “DBMS.h”
Description： When want to finish the file searching state, you can use this function.
Returns： 0: Close defeat.
1: Close success.
SearchField
Purpose： SearchField can search the appointed field that begin from the appointed
record and compare with importing string. If agreeing, pass back to the
first record.
Syntax： int SearchField(_DBMS* F_Search, char* field, int search_fieldno, int
recordno, int flag);
Example call： char str[8]=”abcdefg”;
int Record_Num;
Record_Num =SearchField(&fsearch, str,0,0,FORWARD);
Includes： #include “DBMS.h”
Description： 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.
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： -1: Search defeat.
Other value: Match the record position of data
SearchField_GR
Purpose： SearchField_GR can search the appointed field that begin from the
appointed record and compare with importing string. If agreeing, it will
copy the record which included the field to buffer.
Syntax： int SearchField_GR(_DBMS* F_Search, char* field, int search_fieldno, int