Function CGGetDisplayTransferByFormula 

pub unsafe extern "C-unwind" fn CGGetDisplayTransferByFormula(
    display: CGDirectDisplayID,
    red_min: *mut CGGammaValue,
    red_max: *mut CGGammaValue,
    red_gamma: *mut CGGammaValue,
    green_min: *mut CGGammaValue,
    green_max: *mut CGGammaValue,
    green_gamma: *mut CGGammaValue,
    blue_min: *mut CGGammaValue,
    blue_max: *mut CGGammaValue,
    blue_gamma: *mut CGGammaValue,
) -> CGError

Available on crate features CGDirectDisplay and CGError only.

Safety

• red_min must be a valid pointer or null.
• red_max must be a valid pointer or null.
• red_gamma must be a valid pointer or null.
• green_min must be a valid pointer or null.
• green_max must be a valid pointer or null.
• green_gamma must be a valid pointer or null.
• blue_min must be a valid pointer or null.
• blue_max must be a valid pointer or null.
• blue_gamma must be a valid pointer or null.