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

# ffSpecVer

Specifies the version number of the FF API specification supported by this plugIn. It should be specified using the fields of the NumVersion structure. The first version of the FF API specification is 1.0.0f0.

## Declaration

```swift
var ffSpecVer: NumVersion
```

## See Also

### Instance Properties

- [driverVer](forcefeedback/ffcapabilities/driverver.md)
- [emulatedEffects](forcefeedback/ffcapabilities/emulatedeffects.md)
- [ffAxes](forcefeedback/ffcapabilities/ffaxes.md)
- [firmwareVer](forcefeedback/ffcapabilities/firmwarever.md)
- [hardwareVer](forcefeedback/ffcapabilities/hardwarever.md)
- [numFfAxes](forcefeedback/ffcapabilities/numffaxes.md)
- [playbackCapacity](forcefeedback/ffcapabilities/playbackcapacity.md)
- [storageCapacity](forcefeedback/ffcapabilities/storagecapacity.md)
- [subType](forcefeedback/ffcapabilities/subtype.md)
- [supportedEffects](forcefeedback/ffcapabilities/supportedeffects.md)