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# accessibilityBrailleMapRenderRegion

A region of the UI that the system converts into a braille map and displays on the
braille display.

```
optional var accessibilityBrailleMapRenderRegion: CGRect { get set }
```

## Discussion

When the accessibility element that implements this property has focus, the system
uses this value to update the braille display automatically.

Set this value to specify a region of the accessibility element — relative to its
bounds — to display on the braille display. VoiceOver snapshots the region of the
accessibility element that you specify, converts the data to a braille map, and renders
the braille map to the braille display.

---

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