SA_IsiReadKP

SA_IsiReadKP allows reading of records after a successful indexed read in descending order.

int SA_IsiReadKP ( SA_FH IsiFH, u8 *Buffer, u32 BufLen );

Parameters:

IsiFH

The handle of the previously opened or prepared ISAM file.

Buffer

The buffer filled by the operation.

BufLen

The length of the {Buffer}.

Note the following:

1. The buffer size must be equal to or larger than the reclen parameter specified in SA_IsiPrep plus one(1) for null termination.

2. A null buffer pointer will allow positioning to the indicated record without actually reading it.

3. Function return codes are as follows:

 

Value	Meaning
nn	Number of bytes read + 1.
0	No record meet this key specification.
-nn	Error as described in Sunaccess Errors