OutputEmptyFcn - Specify callback function to execute when output buffer is empty

Description

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 instrument.

Note   An output-empty event can be generated only for asynchronous write operations.

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, refer to Creating and Executing Callback Functions.

Characteristics

Usage	Any instrument object
Read only	Never
Data type	Callback function

Values

The default value is an empty string.

See Also

Functions

record

Properties

RecordStatus

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