pub unsafe extern "system" fn DhcpSetOptionValueV6(
    serveripaddress: PCWSTR,
    flags: u32,
    optionid: u32,
    classname: PCWSTR,
    vendorname: PCWSTR,
    scopeinfo: *mut DHCP_OPTION_SCOPE_INFO6,
    optionvalue: *mut DHCP_OPTION_DATA,
) -> u32