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

# dwAttackLevel

Amplitude for the start of the envelope, relative to the baseline, in the range from 0 through 10,000. If the effect’s type-specific data does not specify a baseline, the amplitude is relative to 0.

## Declaration

```swift
var dwAttackLevel: DWORD
```

## See Also

### Instance Properties

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