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# convert(_:)

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

```
func convert(_ fontObj: NSFont) -> NSFont
```

## Parameters

`fontObj`

The font to convert.

## Return Value

The converted font, or `aFont` itself if the conversion isn’t possible.

## Discussion

This method is invoked in response to an action message such as [`addFontTrait(_:)`](/documentation/AppKit/NSFontManager/addFontTrait(_:)) or [`modifyFontViaPanel(_:)`](/documentation/AppKit/NSFontManager/modifyFontViaPanel(_:)). These initiating methods cause the font manager to query the sender for the action to take and the traits to change. See Converting Fonts Manually for more information.

## See Also

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

Returns a font whose traits are as similar as possible to those of the given font except for the font family, which is changed to the given family.

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

Returns a font object whose traits are the same as those of the given font, except for the size, which is changed to the given size.

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

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

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

Returns a new version of a font object without the specified traits.

[`convertWeight(_:of:)`](/documentation/AppKit/NSFontManager/convertWeight(_:of:))

Returns a font object whose weight is greater or lesser than that of the given font.

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

Returns a font whose traits are as similar as possible to those of the given font except for the typeface, which is changed to the given typeface.


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