Function netapi32::DsGetDcOpenW

pub unsafe extern "system" fn DsGetDcOpenW(
    DnsName: LPCWSTR, 
    OptionFlags: ULONG, 
    SiteName: LPCWSTR, 
    DomainGuid: *mut GUID, 
    DnsForestName: LPCWSTR, 
    DcFlags: ULONG, 
    RetGetDcContext: PHANDLE
) -> DWORD