Specify the callback function to execute when the output buffer is empty
You configure OutputEmptyFcn to execute a callback function when an output-empty event occurs. An output-empty event is generated when the last byte is sent from the output buffer to the device.
If the RecordStatus property value is on, and an output-empty event occurs, the record file records this information:
The event type as OutputEmpty
The time the event occurred using the format day-month-year hour:minute:second:millisecond
To learn how to create a callback function, see Creating and Executing Callback Functions.