---
title: init()
framework: Force Feedback
role: symbol
role_heading: Initializer
platforms: [Mac Catalyst 13.0+, macOS 10.2+]
path: forcefeedback/ffenvelope/init()
---

# init()

## Declaration

```swift
init()
```

## See Also

### Initializers

- [init(dwSize:dwAttackLevel:dwAttackTime:dwFadeLevel:dwFadeTime:)](forcefeedback/ffenvelope/init(dwsize:dwattacklevel:dwattacktime:dwfadelevel:dwfadetime:).md)