-- v2: dinput: Make sure converted direction values are always positive. windows.gaming.input: Implement IConditionForceEffect_SetParameters. windows.gaming.input: Implement IPeriodicForceEffect_SetParameters(WithEnvelope). windows.gaming.input: Implement IRampForceEffect_SetParameters(WithEnvelope). windows.gaming.input: Implement IConstantForceEffect_SetParameters(WithEnvelope). windows.gaming.input: Implement IForceFeedbackEffect_(get|put)_Gain. windows.gaming.input: Always assume at least two force feedback axes. dinput/tests: Remove IAsyncOperation reference count checks.