Closing a Serial Port (Windows CE 5.0)
Call the CloseHandle function to close a serial port when an application is done using it.
CloseHandle has one parameter, which is the handle returned by the CreateFile function call that opened the port.
There is a two-second delay after CloseHandle is called before the port is closed and resource are freed. This delay allows pending operations to complete.
See Also
Programming Serial Connections
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