# XWUIOverlayBlockUI

Blocks entire UI with overlay; optional spinner and message. Unlike XWUIOverlayBackdrop (modals only), this covers the whole viewport.

## Basic Usage

Blocks entire UI with overlay; optional spinner and message.

```example
file: examples/BasicUsage.ts
html: examples/BasicUsage.html
title: Basic Usage
description: Blocks entire UI with overlay; optional spinner and message.
```

## Saving State

A scoped busy overlay with a spinner and a "Saving..." message, covering only its host card while an action completes.

```example
file: examples/SavingState.ts
html: examples/SavingState.html
title: Saving State
description: A scoped busy overlay with a spinner and a "Saving..." message, covering only its host card while an action completes.
```

## Large Spinner, No Message

A minimal busy overlay showing only a large spinner - for short transient loads where a status message would just flash.

```example
file: examples/LargeSpinnerNoMessage.ts
html: examples/LargeSpinnerNoMessage.html
title: Large Spinner, No Message
description: A minimal busy overlay showing only a large spinner - for short transient loads where a status message would just flash.
```

```api
```