CTFontCreateCopyWithAttributes(_:_:_:_:)

Declaration

func CTFontCreateCopyWithAttributes(_ font: CTFont, _ size: CGFloat, _ matrix: UnsafePointer<CGAffineTransform>?, _ attributes: CTFontDescriptor?) -> CTFont

Parameters

• font:

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

• size:

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

• matrix:

  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.

• attributes:

  A font descriptor containing additional attributes that the new font should contain.

Return Value

A new font reference converted from the original with the specified attributes.

Discussion

This function provides a mechanism to change attributes quickly on a given font reference in response to user actions. For instance, the size can be changed in response to a user manipulating a size slider.

See Also

Creating Fonts

• CTFontCreateWithName(_:_:_:)
• CTFontCreateWithNameAndOptions(_:_:_:_:)
• CTFontCreateWithFontDescriptor(_:_:_:)
• CTFontCreateWithFontDescriptorAndOptions(_:_:_:_:)
• CTFontCreateUIFontForLanguage(_:_:_:)
• CTFontCreateCopyWithSymbolicTraits(_:_:_:_:_:)
• CTFontCreateCopyWithFamily(_:_:_:_:)
• CTFontCreateForString(_:_:_:)
• CTFontCreateForStringWithLanguage(_:_:_:_:)