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# Line Cap Values

These constants specify the shape of endpoints for an open path when stroked.

## Discussion

Used by [`lineCap`](/documentation/QuartzCore/CAShapeLayer/lineCap). The following figure shows the appearance of the available line cap styles.

![](images/com.apple.quartzcore/media-1965770.gif)

## Topics

### Constants

[`butt`](/documentation/QuartzCore/CAShapeLayerLineCap/butt)

Specifies a butt line cap style for endpoints for an open path when stroked.

[`round`](/documentation/QuartzCore/CAShapeLayerLineCap/round)

Specifies a round line cap style for endpoints for an open path when stroked.

[`square`](/documentation/QuartzCore/CAShapeLayerLineCap/square)

Specifies a square line cap style for endpoints for an open path when stroked.


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