DNS_QUERY_REQUEST structure (windns.h)
The DNS_QUERY_REQUEST structure contains the DNS query parameters used in a call to DnsQueryEx.
Syntax
typedef struct _DNS_QUERY_REQUEST {
ULONG Version;
PCWSTR QueryName;
WORD QueryType;
ULONG64 QueryOptions;
PDNS_ADDR_ARRAY pDnsServerList;
ULONG InterfaceIndex;
PDNS_QUERY_COMPLETION_ROUTINE pQueryCompletionCallback;
PVOID pQueryContext;
} DNS_QUERY_REQUEST, *PDNS_QUERY_REQUEST;
Members
Version
The structure version must be one of the following:
DNS_QUERY_REQUEST_VERSION1 (1)
QueryName
A pointer to a string that represents the DNS name to query.
QueryType
A value that represents the Resource Record (RR) DNS Record Type that is queried. QueryType determines the format of data pointed to by pQueryRecords returned in the DNS_QUERY_RESULT structure. For example, if the value of wType is DNS_TYPE_A, the format of data pointed to by pQueryRecords is DNS_A_DATA.
QueryOptions
A value that contains a bitmap of DNS Query Options to use in the DNS query. Options can be combined and all options override DNS_QUERY_STANDARD
pDnsServerList
A pointer to a DNS_ADDR_ARRAY structure that contains a list of DNS servers to use in the query.
InterfaceIndex
A value that contains the interface index over which the query is sent. If InterfaceIndex is 0, all interfaces will be considered.
pQueryCompletionCallback
A pointer to a DNS_QUERY_COMPLETION_ROUTINE callback that is used to return the results of an asynchronous query from a call to DnsQueryEx.
pQueryContext
A pointer to a user context.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8 [desktop apps only] |
| Minimum supported server | Windows Server 2012 [desktop apps only] |
| Header | windns.h |