---
title: structureOutput
framework: driverkit
role: symbol
role_heading: Instance Property
path: driverkit/iouserclientmethodarguments/structureoutput
---

# structureOutput

A data object to return to the caller as structure output.

## Declaration

```occ
OSData * structureOutput;
```

## Discussion

Discussion A reference will be consumed by the caller. It is an error to set this field if structureOutputDescriptor was passed in

## See Also

### Getting the Method Arguments

- [version](driverkit/iouserclientmethodarguments/version.md)
- [selector](driverkit/iouserclientmethodarguments/selector.md)
- [completion](driverkit/iouserclientmethodarguments/completion.md)
- [scalarInput](driverkit/iouserclientmethodarguments/scalarinput.md)
- [scalarInputCount](driverkit/iouserclientmethodarguments/scalarinputcount.md)
- [structureInput](driverkit/iouserclientmethodarguments/structureinput.md)
- [structureInputDescriptor](driverkit/iouserclientmethodarguments/structureinputdescriptor.md)
- [scalarOutput](driverkit/iouserclientmethodarguments/scalaroutput.md)
- [scalarOutputCount](driverkit/iouserclientmethodarguments/scalaroutputcount.md)
- [structureOutputDescriptor](driverkit/iouserclientmethodarguments/structureoutputdescriptor.md)
- [structureOutputMaximumSize](driverkit/iouserclientmethodarguments/structureoutputmaximumsize.md)