Returns a new font in the specified family based on the traits of the original font.


func CTFontCreateCopyWithFamily(_ font: CTFont, _ size: CGFloat, _ matrix: UnsafePointer<CGAffineTransform>?, _ family: CFString) -> CTFont?



The original font reference on which to base the new font.


The point size for the font reference. If 0.0 is specified, the original font’s size is preserved.


The transformation matrix for the font. In most cases, set this parameter to be NULL. If NULL is specified, the original font's matrix is preserved.


The name of the desired family.

Return Value

A new font reference with the original traits in the given family, or NULL if none is found in the system.

See Also

Creating Fonts

func CTFontCreateWithFontDescriptor(CTFontDescriptor, CGFloat, UnsafePointer<CGAffineTransform>?) -> CTFont

Returns a new font reference that best matches the given font descriptor.

func CTFontCreateUIFontForLanguage(CTFontUIFontType, CGFloat, CFString?) -> CTFont?

Returns the special user-interface font for the given language and user-interface type.

func CTFontCreateForString(CTFont, CFString, CFRange) -> CTFont

Returns a new font reference that can best map the given string range based on the current font.