Topic Path: Symbol Reference > Classes > TIdIPMCastBase Class > TIdIPMCastBase Methods > IsValidMulticastGroup Method
TIdIPMCastBase.IsValidMulticastGroup Method

Indicates that an IP address is a member of a multicast group address.

function IsValidMulticastGroup(
    Value: string
): Boolean;
Multicast Group IP address to be verified in the method. 

Boolean - True when hte IP address is a multicast group address.

IsValidMulticastGroup is a Boolean function that indicates if the IP address in Value represents an IP address that is a member of a multicast group address. 

IsValidMulticastGroup returns True when the first byte of the dotted-decimal IP address is in the range identified by the constants IPMCastLo through IPMCastHi. IsValidMulticastGroup will return False when the IP address is not in the required range, or Value contains a host name instead of a dotted-decimal IP address.

TIdStack.GetIPInfo IPMCastLo IPMCastHi

Copyright 1993-2006, Chad Z. Hower (aka Kudzu) and the Indy Pit Crew. All rights reserved.
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