Using Streams: 3.3 Using the Parallel Ports: Closing a Parallel Port

ParallelClose()

To close a parallel port, ParallelClose() . This routine takes the following arguments:

The GeodeHandle of the parallel-port driver.
The member of the ParallelUnit enumerated type.
Either STREAM_LINGER (to instruct the kernel to close the port after all outgoing data in the buffer has been sent), or STREAM_DISCARD (to instruct the kernel to close the port right away and discard all buffered data).

This function returns immediately whether the port was closed right away or not. However, if STREAM_LINGER is specified, the port may not be re-opened until all the data in the parallel port's buffer has been dealt with.

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3.2 Communicating