pub unsafe extern "system" fn DhcpHlprAddV4PolicyCondition(
    policy: *mut DHCP_POLICY,
    parentexpr: u32,
    type: DHCP_POL_ATTR_TYPE,
    optionid: u32,
    suboptionid: u32,
    vendorname: PCWSTR,
    operator: DHCP_POL_COMPARATOR,
    value: *const u8,
    valuelength: u32,
    conditionindex: *mut u32,
) -> u32