close_serial — Close a serial device.
close_serial( : : SerialHandle : )
close_serial closes a serial device that was opened with
This operator modifies the state of the following input parameter:
During execution of this operator, access to the value of this parameter must be synchronized if it is used across multiple threads.
SerialHandle(input_control, state is modified) serial
Serial interface handle.
If the parameters are correct and the device could be closed, the
close_serial returns the value TRUE. Otherwise an
exception is raised.