Topic Path: Symbol Reference > Classes > TIdFSPPacket Class > TIdFSPPacket Properties > Key Property
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TIdFSPPacket.Key Property

The unique identifier for the protocol response packet.

property Key: Word;

Key is a Word property that represents the unique identifier for the packet. 

Packets sent from a remote FSP host include a vlaue in Key to prevent duplicate processing of packets in the FSP protocol exchange. 

The value in Key is read from the binary contents of the packet in the ReadPacket method. The value in Key is written to the binary contents of the packet in the WritePacket method. 

Use Sequence to determine the order for a packet having the specified Key received in response to an FSP command.

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