SPORT_CANCEL_IO

Run-Time Function: Cancels any I/O in progress to the specified port.

Module: USE DFLIB

Syntax

iresult = SPORT_CANCEL_IO (port)

port
(Input) Integer. The port number.

Results:

The result is of type INTEGER(4). The result is zero if successful; otherwise, a Win32 error value.

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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.

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Compatibility

CONSOLE STANDARD GRAPHICS QUICKWIN GRAPHICS WINDOWS DLL LIB

See Also: Using the Serial I/O Port Routines, and Communications, and Communications Functions in the Win32 SDK

Example

USE DFLIB
INTEGER(4) iresult
iresult = SPORT_CANCEL_IO( 2 )
END