> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# GameInputForceFeedbackConstantParams

> GameInputForceFeedbackConstantParams

# GameInputForceFeedbackConstantParams

Defines a constant physical aspect of a force-feedback effect.

## Syntax

```cpp theme={null}
struct GameInputForceFeedbackConstantParams
{
    GameInputForceFeedbackEnvelope  envelope;
    GameInputForceFeedbackMagnitude magnitude;
};
```

### Members

*envelope*<br />
Type: [GameInputForceFeedbackEnvelope](/reference/input/gameinput/structs/gameinputforcefeedbackenvelope)

The modifying envelope on a force-feedback effect.

*magnitude*<br />
Type: [GameInputForceFeedbackMagnitude](/reference/input/gameinput/structs/gameinputforcefeedbackmagnitude)

The amount of force being applied by a force-feedback effect.

## Remarks

`GameInputForceFeedbackConstantParams` is a member of the [GameInputForceFeedbackParams](/reference/input/gameinput/structs/gameinputforcefeedbackparams) structure.

The `CreateForceFeedbackEffect` method allocates hardware resources in the motor for a new force feedback-effect with a specified set of parameters and returns an `IGameInputForceFeedbackEffect` instance to track those resources.  A `HRESULT` error is returned if there are insufficient hardware resources to create the effect or if the requested effect is not supported by the hardware. Force-feedback effects are defined by their parameters and are stored in the `GameInputForceFeedbackParams` structure.

## Requirements

**Header:** GameInput.h

[Advanced GameInput topics](/build/core-features/common/input/advanced/input-advanced-topics)\
[Overview of GameInput](/build/core-features/common/input/overviews/input-overview)\
[GameInput](/reference/input/gameinput/gameinput_members)

## Version History

| Version | Changes     |
| ------- | ----------- |
| **v0**  | Introduced. |


## Related topics

- [GameInputForceFeedbackMagnitude](/reference/input/gameinput/structs/gameinputforcefeedbackmagnitude.md)
- [GameInputForceFeedbackEnvelope](/reference/input/gameinput/structs/gameinputforcefeedbackenvelope.md)
- [GameInputForceFeedbackParams](/reference/input/gameinput/structs/gameinputforcefeedbackparams.md)
- [GameInput](/reference/input/gameinput/gameinput_members.md)
- [Force feedback on GameInput](/build/core-features/common/input/advanced/input-forcefeedback.md)