Serial Port I/O Function: Cancels any I/O in progress to the specified port.
Module
USE IFPORT
Syntax
result = SPORT_CANCEL_IO (port)
port |
(Input) Integer. The port number. |
Results
The result type is INTEGER(4). The result is zero if successful; otherwise, a Windows* error value.
Note
This call also kills the thread that keeps an outstanding read operation to the serial port. This call must be done before any of the port characteristics are modified.
Compatibility
CONSOLE STANDARD GRAPHICS QUICKWIN GRAPHICS WINDOWS DLL LIB
Example
USE IFPORT
INTEGER(4) iresult
iresult = SPORT_CANCEL_IO( 2 )
END