Argox PA-20 Programming Guide - Manual (Page 59)

PT-20 Programming Guide 57
unsigned char *pusFielddlt This argument has two kinds of meanings.
When record _ Type is 0, search for regular
length. This function needs to insert the
unsigned char array; the array represents
the length of every field.
When record _ Type is1, search for
variable length, this function need to insert
one character to represent separate
symbol.
unsigned char *pusKeyIdx This argument can give max. 8 key fields
for search. We will make a checksum index
file for these key fields.
int slKeyField_Num This argument can give the sum of
pusKeyIdx size, for sum of key fields.
int record_type When record _ Type is 0, search for regular
length. It has no separate symbols among
field and field.
When record _ Type is 1, search for
variable length. It needs a separate symbol
among field and field.
int record_length This argument is each record’s length.
When record _ Type is 0, need to insert this
value, not including the symbol of line feed.
When record _ Type is 1, this field can
insert any value.
int total_field_no This argument is the field’s quantity of each
record.
int total_record_no Total amount of records in the file. If does
not know the total amount, you can insert -
1, that will calculate automatically by the
system.
Returns： 0: Initialize defeat.
1: Initialize success.
-1: Argument “pusKeyIdx” or “slKeyField_Num” is error, please check it.
-2: Cannot make a IDX file, please check your lookup filename or C disk
size.
Close_Search
Purpose： Use “Close _ Search” can close the file search function in Disk C and D.