Delphi DLL

DNS Lookup

Do a DNS lookup to resolve a hostname to an IP address. Delphi DLL

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Socket;

...

procedure TForm1.Button1Click(Sender: TObject);
var
socket: HCkSocket;
maxWaitMs: Integer;
ipAddr: PWideChar;

begin
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

socket := CkSocket_Create();

maxWaitMs := 10000;
ipAddr := CkSocket__dnsLookup(socket,'www.chilkatsoft.com',maxWaitMs);
if (CkSocket_getLastMethodSuccess(socket) <> True) then
  begin
    Memo1.Lines.Add(CkSocket__lastErrorText(socket));
    Exit;
  end;

Memo1.Lines.Add('IP Address: ' + ipAddr);

CkSocket_Dispose(socket);

end;