# Miscellaneous Defines ## Topics ### Constants [`var E_PENDING: Int`](/documentation/ForceFeedback/E_PENDING) [`var FF_DEGREES: Int32`](/documentation/ForceFeedback/FF_DEGREES) [`var FF_DOWNLOADSKIPPED: HRESULT`](/documentation/ForceFeedback/FF_DOWNLOADSKIPPED) [`var FF_EFFECTRESTARTED: HRESULT`](/documentation/ForceFeedback/FF_EFFECTRESTARTED) [`var FF_FALSE: HRESULT`](/documentation/ForceFeedback/FF_FALSE) [`var FF_FFNOMINALMAX: Int32`](/documentation/ForceFeedback/FF_FFNOMINALMAX) [`var FF_INFINITE: UInt`](/documentation/ForceFeedback/FF_INFINITE) [`var FF_OK: HRESULT`](/documentation/ForceFeedback/FF_OK) [`var FF_SECONDS: Int32`](/documentation/ForceFeedback/FF_SECONDS) [`var FF_TRUNCATED: HRESULT`](/documentation/ForceFeedback/FF_TRUNCATED) [`var FF_TRUNCATEDANDRESTARTED: HRESULT`](/documentation/ForceFeedback/FF_TRUNCATEDANDRESTARTED) [`var FFEFF_OBJECTOFFSETS: UInt`](/documentation/ForceFeedback/FFEFF_OBJECTOFFSETS) [`var FFERR_DEVICEFULL: Int`](/documentation/ForceFeedback/FFERR_DEVICEFULL) [`#define FFERR_DEVICENOTREG`](/documentation/ForceFeedback/FFERR_DEVICENOTREG) [`var FFERR_DEVICEPAUSED: Int`](/documentation/ForceFeedback/FFERR_DEVICEPAUSED) [`var FFERR_DEVICERELEASED: Int`](/documentation/ForceFeedback/FFERR_DEVICERELEASED) [`var FFERR_EFFECTPLAYING: Int`](/documentation/ForceFeedback/FFERR_EFFECTPLAYING) [`var FFERR_EFFECTTYPEMISMATCH: Int`](/documentation/ForceFeedback/FFERR_EFFECTTYPEMISMATCH) [`var FFERR_EFFECTTYPENOTSUPPORTED: Int`](/documentation/ForceFeedback/FFERR_EFFECTTYPENOTSUPPORTED) [`var FFERR_GENERIC: HRESULT`](/documentation/ForceFeedback/FFERR_GENERIC) [`var FFERR_HASEFFECTS: Int`](/documentation/ForceFeedback/FFERR_HASEFFECTS) [`var FFERR_INCOMPLETEEFFECT: Int`](/documentation/ForceFeedback/FFERR_INCOMPLETEEFFECT) [`var FFERR_INTERNAL: Int`](/documentation/ForceFeedback/FFERR_INTERNAL) [`var FFERR_INVALIDDOWNLOADID: Int`](/documentation/ForceFeedback/FFERR_INVALIDDOWNLOADID) [`var FFERR_INVALIDPARAM: HRESULT`](/documentation/ForceFeedback/FFERR_INVALIDPARAM) [`var FFERR_MOREDATA: Int`](/documentation/ForceFeedback/FFERR_MOREDATA) [`var FFERR_NOINTERFACE: HRESULT`](/documentation/ForceFeedback/FFERR_NOINTERFACE) [`var FFERR_NOTDOWNLOADED: Int`](/documentation/ForceFeedback/FFERR_NOTDOWNLOADED) [`var FFERR_NOTINITIALIZED: Int`](/documentation/ForceFeedback/FFERR_NOTINITIALIZED) [`var FFERR_OUTOFMEMORY: HRESULT`](/documentation/ForceFeedback/FFERR_OUTOFMEMORY) [`var FFERR_UNPLUGGED: Int`](/documentation/ForceFeedback/FFERR_UNPLUGGED) [`var FFERR_UNSUPPORTED: HRESULT`](/documentation/ForceFeedback/FFERR_UNSUPPORTED) [`var FFERR_UNSUPPORTEDAXIS: Int`](/documentation/ForceFeedback/FFERR_UNSUPPORTEDAXIS) [FFJOFS_i](/documentation/ForceFeedback/ffjofs_i_i_i) [`var FFJOFS_X: Int32`](/documentation/ForceFeedback/FFJOFS_X) [`#define kFFEffectType_ConstantForce_ID`](/documentation/ForceFeedback/kFFEffectType_ConstantForce_ID) [`#define kFFEffectType_CustomForce_ID`](/documentation/ForceFeedback/kFFEffectType_CustomForce_ID) [`#define kFFEffectType_Damper_ID`](/documentation/ForceFeedback/kFFEffectType_Damper_ID) [`#define kFFEffectType_Friction_ID`](/documentation/ForceFeedback/kFFEffectType_Friction_ID) [`#define kFFEffectType_Inertia_ID`](/documentation/ForceFeedback/kFFEffectType_Inertia_ID) [`#define kFFEffectType_RampForce_ID`](/documentation/ForceFeedback/kFFEffectType_RampForce_ID) [`#define kFFEffectType_SawtoothDown_ID`](/documentation/ForceFeedback/kFFEffectType_SawtoothDown_ID) [`#define kFFEffectType_SawtoothUp_ID`](/documentation/ForceFeedback/kFFEffectType_SawtoothUp_ID) [`#define kFFEffectType_Sine_ID`](/documentation/ForceFeedback/kFFEffectType_Sine_ID) [`#define kFFEffectType_Spring_ID`](/documentation/ForceFeedback/kFFEffectType_Spring_ID) [`#define kFFEffectType_Square_ID`](/documentation/ForceFeedback/kFFEffectType_Square_ID) [`#define kFFEffectType_Triangle_ID`](/documentation/ForceFeedback/kFFEffectType_Triangle_ID) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)