Function core_foundation::string::CFStringGetBytes

pub unsafe extern "C" fn CFStringGetBytes(
    theString: *const __CFString, 
    range: CFRange, 
    encoding: u32, 
    lossByte: u8, 
    isExternalRepresentation: u8, 
    buffer: *mut u8, 
    maxBufLen: i32, 
    usedBufLen: *mut i32
) -> i32