SPORT_READ_DATA (W*S)

Serial Port I/O Function: Reads available data from the specified port. This routine stalls until at least one character has been read.

Module

USE IFPORT

result = SPORT_READ_DATA (port,buffer[,count])

port	(Input) Integer. The port number.
buffer	(Output) Character(). The data that was read.
count	(Output; optional) Integer. The count of bytes read.

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

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

USE IFPORT
INTEGER(4)      iresult
INTEGER         count
CHARACTER*1024  rbuff

iresult = SPORT_READ_DATA( 2, rbuff, count )
END