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# CTFontCreateWithPlatformFont(_:_:_:_:)

Creates a new font reference from an ATS font reference.

```
func CTFontCreateWithPlatformFont(_ platformFont: ATSFontRef, _ size: CGFloat, _ matrix: UnsafePointer<CGAffineTransform>?, _ attributes: CTFontDescriptor?) -> CTFont?
```

## Parameters

`platformFont`

A valid [`ATSFontRef`](/documentation/CoreText/ATSFontRef) object.

`size`

The point size for the font reference. If `0.0` is specified the default font size of 12.0 is used.

`matrix`

The transformation matrix for the font.  In most cases, set this parameter to be `NULL`.  If `NULL`, the identity matrix is used. Optional.

`attributes`

A [`CTFontDescriptor`](/documentation/CoreText/CTFontDescriptor) containing additional attributes that should be matched. Optional.

## Return Value

A new font reference for an [`ATSFontRef`](/documentation/CoreText/ATSFontRef) with the specified size, matrix, and additional attributes.

## Discussion

---

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