Mega Code Archive
Delphi .NET Get computer IP address
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Title: Delphi .NET: Get computer IP address
Question: How to get the list of the computer IP addresses
Answer:
One of the many namespaces in the Base Class Framework is the System.Net namespace. It provides a simple programming interface to many of the protocols found on the network today. One of the classes of the namespace is DNS which provides simple domain name resolution functionality.
{$APPTYPE CONSOLE}
program getip;
uses
System,
System.Net,
Borland.Delphi.SysUtils;
var
strMachineName : String;
ipHost : IPHostEntry;
ipAddr : array of IPAddress;
count : Integer;
begin
//Get the Host Name
strMachineName := Dns.GetHostName();
Console.WriteLine('Host Name: ' + strMachineName);
//Get the Host by Name
ipHost := Dns.GetHostByName(strMachineName);
//You can also query the DNS database for info on a
//website like users.chello.be
//In that case replace the above line as:
//ipHost := Dns.GetHostByName('users.chello.be')
//Get the list of addresses associated with the host in an array
ipAddr := ipHost.AddressList;
//Enumerate the IP Addresses
For count := 0 To length(ipAddr) - 1 do
Console.Write(Format('IP Addresses %d: %s ', [count, ipAddr[count].ToString]));
end.
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