pub unsafe extern "system" fn RtlUpcaseUnicodeToCustomCPN(
    customcp: *const CPTABLEINFO,
    customcpstring: PSTR,
    maxbytesincustomcpstring: u32,
    bytesincustomcpstring: *mut u32,
    unicodestring: PCWSTR,
    bytesinunicodestring: u32,
) -> NTSTATUS