---
title: dwPeriod
framework: Force Feedback
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 13.0+, macOS 10.2+]
path: forcefeedback/ffperiodic/dwperiod
---

# dwPeriod

Period of the effect, in microseconds.

## Declaration

```swift
var dwPeriod: DWORD
```

## See Also

### Instance Properties

- [dwMagnitude](forcefeedback/ffperiodic/dwmagnitude.md)
- [dwPhase](forcefeedback/ffperiodic/dwphase.md)
- [lOffset](forcefeedback/ffperiodic/loffset.md)