[celades1]

Hola

He hecho la prueba con un form un boton y una BD de Fibplus (Datos) y me ha funcionado correctamente

Código Delphi [-]
unit Unit1;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, FIBDatabase, pFIBDatabase,Winsock;
type
  TForm1 = class(TForm)
    Button1: TButton;
    datos: TpFIBDatabase;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
var
  Form1: TForm1;
function IcmpCreateFile : THandle; stdcall; external 'icmp.dll';
function IcmpSendEcho
   (IcmpHandle : THandle; DestinationAddress : integer;
    RequestData : Pointer; RequestSize : Smallint;
    RequestOptions : pointer;
    ReplyBuffer : Pointer;
    ReplySize : DWORD;
    Timeout : DWORD) : DWORD; stdcall; external 'icmp.dll';

implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
var
 Handle: Integer;
 Buffer: array [0..7] of Cardinal;
begin
 Handle := IcmpCreateFile;
 if Handle = -1 then Exit; // Error interno
 if not LongBool(IcmpSendEcho(Handle, inet_addr(pchar('127.195.1.1')), nil, 0, nil, @Buffer, SizeOf(Buffer),1000)) then
 begin
  MessageDlg ('Imposible realizar la conexión con la BD', mtError, [mbOK], 0);
  CloseHandle(Handle);
  Datos.Connected:= False;
 end
 else
 begin
  MessageDlg ('Conexión realizada correctamente', mtInformation, [mbOK], 0);
  Datos.Connected:= False;
  Datos.Connected:= True;
 end;
end;

Saludos