---
title: getUnitExponent
framework: hiddriverkit
role: symbol
role_heading: Instance Method
path: hiddriverkit/iohidelement/getunitexponent
---

# getUnitExponent

Returns the exponent that you use to interpret the element’s value.

## Declaration

```occ
virtual uint32_t getUnitExponent();
```

## Return Value

Return Value Returns the element’s unit exponent. The unit exponent value is defined in the USB HID spec.

## See Also

### Accessing the Element’s Value

- [getValue](hiddriverkit/iohidelement/getvalue.md)
- [getDataValue](hiddriverkit/iohidelement/getdatavalue.md)
- [getScaledValue](hiddriverkit/iohidelement/getscaledvalue.md)
- [getScaledFixedValue](hiddriverkit/iohidelement/getscaledfixedvalue.md)
- [setValue](hiddriverkit/iohidelement/setvalue.md)
- [setDataValue](hiddriverkit/iohidelement/setdatavalue.md)
- [getUnit](hiddriverkit/iohidelement/getunit.md)
- [IOHIDValueOptions](hiddriverkit/iohidvalueoptions.md)
- [Value Options](hiddriverkit/value-options-enum.md)
- [IOHIDValueScaleType](hiddriverkit/iohidvaluescaletype.md)
- [Value Scale Types](hiddriverkit/value-scale-types-enum.md)