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Main page -> ICS component reference -> TPing


unit Ping.pas

The TPing component implements at least parts of the ICMP protocoll.

It can be used to check whether some other host is reachable or not.


Address The host's IP or DNS address which will be pinged.
DNSResult  ?.
ErrorCode  ?.
ErrorString ErrorMessage.
Flags Integer?
HostName  ?.
HostIP  ?.
ICMPDLLHandle TPing uses the ICMP internally via this handle.
Name Name of the instance.
Reply  ?.
Size Size of the ICMP packet sent in bytes.
Tag Integer value which can be used for your own purposes, e.g. when iterating through all controls of a form.
Timeout Time in miliseconds which may elapse between sending and receiving the ICMP packet.
TTL Sets the Time To Live value within the packet being sent.


CancelDNSLookup Cancel a running DNS lookup.
Create Create the instance.
DNSLoopup Look up the IP to a given DNS address.
Ping Sends the ICMP packet.


OnDisplay  ?.
OnDNSLookupDone Called when the DNS Lookuop ?.
OnEchoRequest Called when the request is being sent.
OnEchoReply Called when the answer to the ping arrive.

How to

ICS Components Reference