Indicates if the DNS message packet contains a query or a response.
property Qr: Word;
Qr is a Word property that specifies if the contents of the DNS message packet contains a DNS query or DNS a response. Qr will contain the value 0 when the message is a query, and the value 1 when the message is a response.
Qr is represented in a DNS header as a bit field. Changing the value of Qr ensures that the appropriate bit field is updated in the DNS header for the message packet.
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Internet Direct (Indy) version 10.1.5
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Description