# Input Action Event

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##  Introduction

<figure><img src="/files/MQThtIegEJL2D0zFUPU0" alt=""><figcaption></figcaption></figure>

Lets you connect an [InputAction](/old-kb/old-toolkit-for-steamworks/unity/objects/classes/input-action.md) to a method that takes an [InputActionUpdate ](/old-kb/old-toolkit-for-steamworks/unity/objects/classes/input-action-update.md)value as a parameter in the Unity Editor Inspector similar to the behaviour with a UI Button Click event.

## Events

### Changed

```csharp
public InputactionEvent.ActionDataEvent changed;
```

This event expects a handler that takes an [InputActionUpdate ](/old-kb/old-toolkit-for-steamworks/unity/objects/classes/input-action-update.md)parameter such as.

```csharp
public void HandleActionEvent(InputActionUpdate data)
{
    //Do Work
    if(data.State)
        ;//This action happened
}
```

### Fields and Attributes

### Action

```csharp
public InputAction action;
```

A reference to the action to listen on. This action will invoke the Changed event when its data has changed as a result of update from the Steam Input system.


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