kCTVerticalFormsAttributeName

Static kCTVerticalFormsAttributeName 

Source
pub unsafe static kCTVerticalFormsAttributeName: &'static CFString
Available on crate feature CTStringAttributes only.
Expand description

Controls glyph orientation.

Value must be a CFBooleanRef. Default is false. A value of false indicates that horizontal glyph forms are to be used, true indicates that vertical glyph forms are to be used.

See also Apple’s documentation