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DNS_QUERY_RAW_CANCEL structure (windns.h)

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Important

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Represents a DNS raw query cancel handle (see DnsQueryRaw and DnsCancelQueryRaw).

This structure must persist until the query completion callback is made (see DNS_QUERY_RAW_COMPLETION_ROUTINE), and it can't be copied elsewhere after it's been passed into DnsQueryRaw. If the query completion callback hasn't been called by the time DnsCancelQueryRaw returns, then the query completion callback will lead to the callback being made with a queryStatus of ERROR_CANCELLED in the queryResults parameter. No special cleanup is required for this structure once the query is complete. Similar to the cancel structure used for DnsQueryEx; for more details, see DNS_QUERY_CANCEL.

Syntax

typedef struct _DNS_QUERY_RAW_CANCEL {
  CHAR reserved[32];
} DNS_QUERY_RAW_CANCEL;

Members

reserved[32]

Type: CHAR[]

Opaque handle structure used for cancel.

Requirements

Requirement Value
Header windns.h