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# convert(_:toHaveTrait:)

Returns a new version of the font object containing a single additional trait.

```
func convert(_ fontObj: NSFont, toHaveTrait trait: NSFontTraitMask) -> NSFont
```

## Parameters

`fontObj`

The font whose traits are matched.

`trait`

The new trait; may be any one of the traits described in `Constants`. Using `NSUnboldFontMask` or `NSUnitalicFontMask` removes the bold or italic trait, respectively.

## Return Value

A font with matching traits including the given trait, or `aFont` if it can’t be converted.

## Discussion

Using `NSUnboldFontMask` or `NSUnitalicFontMask` removes the bold or italic trait, respectively.

## See Also

[`convert(_:)`](/documentation/AppKit/NSFontManager/convert(_:))

Converts the given font according to the object that initiated a font change, typically the Font panel or Font menu.


---

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