pub unsafe extern "C" fn CVDisplayLinkCreateWithCGDisplays(
displayArray: *const CGDirectDisplayID,
count: CFIndex,
displayLinkOut: *mut CVDisplayLinkRef
) -> CVReturnpub unsafe extern "C" fn CVDisplayLinkCreateWithCGDisplays(
displayArray: *const CGDirectDisplayID,
count: CFIndex,
displayLinkOut: *mut CVDisplayLinkRef
) -> CVReturn