---
title: "FFDeviceGetForceFeedbackProperty(_:_:_:_:)"
framework: Force Feedback
role: symbol
role_heading: Function
platforms: [Mac Catalyst 13.0+, macOS 10.2+]
path: "forcefeedback/ffdevicegetforcefeedbackproperty(_:_:_:_:)"
---

# FFDeviceGetForceFeedbackProperty(_:_:_:_:)

Gets properties that define the device behavior.

## Declaration

```swift
func FFDeviceGetForceFeedbackProperty(_ deviceReference: FFDeviceObjectReference!, _ property: FFProperty, _ pValue: UnsafeMutableRawPointer!, _ valueSize: IOByteCount) -> HRESULT
```

## Parameters

- `deviceReference`: An opaque reference handle to the device object that is be disposed of. This handle is obtained from a previous call to FFCreateDevice.
- `property`: The following property values are defined for a FF device (see FFDeviceSetForceFeedbackProperty for details): FFPROP_AUTOCENTER FFPROP_FFGAIN
- `pValue`: Address of the location where the value associated with the property is to be stored. GetForceFeedbackProperty assumes that the pointer is valid, although it will perform a size check before writing the data to pValue
- `valueSize`: Size, in bytes, of data area pointed to by pValue. Size is compared to expected property size, and the function fails if a mismatch occurs.

## Return Value

Return Value If the method succeeds, the return value is FF_OK or FFERR_UNSUPPORTED. If the method fails, the return value can be one of the following error values:

## Discussion

Discussion FFERR_INVALIDPARAM

## See Also

### Miscellaneous

- [FFCreateDevice(_:_:)](forcefeedback/ffcreatedevice(_:_:).md)
- [FFDeviceCreateEffect(_:_:_:_:)](forcefeedback/ffdevicecreateeffect(_:_:_:_:).md)
- [FFDeviceEscape(_:_:)](forcefeedback/ffdeviceescape(_:_:).md)
- [FFDeviceGetForceFeedbackCapabilities(_:_:)](forcefeedback/ffdevicegetforcefeedbackcapabilities(_:_:).md)
- [FFDeviceGetForceFeedbackState(_:_:)](forcefeedback/ffdevicegetforcefeedbackstate(_:_:).md)
- [FFDeviceReleaseEffect(_:_:)](forcefeedback/ffdevicereleaseeffect(_:_:).md)
- [FFDeviceSendForceFeedbackCommand(_:_:)](forcefeedback/ffdevicesendforcefeedbackcommand(_:_:).md)
- [FFDeviceSetCooperativeLevel(_:_:_:)](forcefeedback/ffdevicesetcooperativelevel(_:_:_:).md)
- [FFDeviceSetForceFeedbackProperty(_:_:_:)](forcefeedback/ffdevicesetforcefeedbackproperty(_:_:_:).md)
- [FFEffectDownload(_:)](forcefeedback/ffeffectdownload(_:).md)
- [FFEffectEscape(_:_:)](forcefeedback/ffeffectescape(_:_:).md)
- [FFEffectGetEffectStatus(_:_:)](forcefeedback/ffeffectgeteffectstatus(_:_:).md)
- [FFEffectGetParameters(_:_:_:)](forcefeedback/ffeffectgetparameters(_:_:_:).md)
- [FFEffectSetParameters(_:_:_:)](forcefeedback/ffeffectsetparameters(_:_:_:).md)
- [FFEffectStart(_:_:_:)](forcefeedback/ffeffectstart(_:_:_:).md)