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

# InputLibrary class

> Built-in input library.

import { PageLink } from '/snippets/tsdocs/PageLink.jsx';
import { RefLink } from '/snippets/tsdocs/RefLink.jsx';

# InputLibrary

## Summary

Built-in input library.

## Signature

```typescript theme={null}
declare class InputLibrary extends BaseInputLibrary 
```

## Constructors

### constructor

Constructs a new instance of the class

## Methods

### getDragState

Return the current drag state.

### getMousePosition

Return the current mouse cursor position.

### getMouseState

Return the full mouse state snapshot for the current frame.

### getPressedKeys

Return a list of all keys and mouse buttons that are currently pressed.

### getWheelState

Return the scroll-wheel state accumulated during the current frame.

### isDragging

Return whether a drag operation is in progress.

### isKeyPressed

Return whether a key or mouse button is currently held down.

## Remarks

Listens to browser `keydown`, `keyup`, `mousedown`, `mouseup`, `mousemove`, and `wheel` events and exposes a per-frame snapshot of the current input state. Must be registered after the graphics library because it uses `runAfter: [GRAPHICS_LIBRARY]`.  Register with the application:  Access in a system's `__run` hook: