Serial Port I/O Function: Reads a record from the specified port. This routine stalls until at least one record has been read.
Module
USE IFPORT
Syntax
result = SPORT_READ_LINE (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. |
Results
The result type is INTEGER(4). The result is zero if successful; otherwise, a Windows* OS 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.
Compatibility
CONSOLE STANDARD GRAPHICS QUICKWIN GRAPHICS WINDOWS DLL LIB
Example
USE IFPORT
INTEGER(4) iresult
INTEGER count
CHARACTER*1024 rbuff
iresult = SPORT_READ_LINE( 2, rbuff, count )
END