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# CTParagraphStyleSpecifier.lineBoundsOptions

Options that control the alignment of the line edges with the leading and trailing margins.

```
case lineBoundsOptions
```

## Discussion

Type: [`CTLineBoundsOptions`](/documentation/CoreText/CTLineBoundsOptions). Default value `0` (that is, no options). Affects: [`CTTypesetter`](/documentation/CoreText/CTTypesetter).

---

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