Function CGContextSetAllowsFontSubpixelQuantization 

pub extern "C-unwind" fn CGContextSetAllowsFontSubpixelQuantization(
    c: Option<&CGContext>,
    allows_font_subpixel_quantization: bool,
)

👎Deprecated: renamed to CGContext::set_allows_font_subpixel_quantization

Available on crate feature CGContext only.