# SPORT_PEEK_LINE (W*S)

Serial Port I/O Function: Returns information about the availability of input records.

## Module

USE IFPORT

result = SPORT_PEEK_LINE (port [,present] [,count])

port | (Input) Integer. The port number.
present | (Output; optional) Integer. 1 if data is present, 0 if no data has been read.
count | (Output; optional) Integer. The count of characters that will be returned by SPORT_READ_DATA.

## Results

The result type is INTEGER(4). The result is zero if successful; otherwise, a Windows* error value.

This routine will only return when a line terminator has been seen - as defined by the mode specified in the SPORT_CONNECT( ) call.

### Note

CR and LF characters may not be returned depending on the mode specified in the SPORT_CONNECT( ) call.

## Example

    USE IFPORT
    INTEGER(4) iresult
    INTEGER    present
    INTEGER    count

    iresult =  SPORT_PEEK_LINE( 2, present, count )
    END

Parent topic: Serial Port I/O Library Routines

## See Also

SPORT_CONNECT
SPORT_READ_DATA
SPORT_PEEK_DATA

Communications and Communications Functions in the Microsoft* Platform SDK