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# CGPathAddRoundedRect

Appends a rounded rectangle to a mutable graphics path.

```
extern void CGPathAddRoundedRect(CGMutablePathRef path, const CGAffineTransform *transform, CGRect rect, CGFloat cornerWidth, CGFloat cornerHeight);
```

## Parameters

`path`

The mutable path to change.

`transform`

A pointer to an affine transformation matrix, or `NULL` if no transformation is needed. If specified, Core Graphics applies the transformation to the rectangle before adding it to the path.

`rect`

The rectangle to add.

`cornerWidth`

The width of the rounded corner sections.

`cornerHeight`

The height of the rounded corner sections.

## Discussion

This is a convenience function that adds a path of an rounded rectangle.

Each corner of the rounded rectangle is one-quarter of an ellipse with axes equal to the `cornerWidth` and `cornerHeight` parameters. The rounded rectangle forms a complete subpath and is oriented in the clockwise direction.

---

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