[jeremiselxi]

Empezado por aposi

has puesto en el uses la SysUtils ??

Gracias por responder tan rápido.

Si lo he puesto,

Adjunto el código que estoy utilizando:

Código Delphi [-]
unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  amount : Currency;
begin
  amount := 12.34;    // 12 pounds 34 pence

  // Display with the default decimal point character
  ShowMessage('Amount = '+FloatToStrF(amount, ffCurrency, 10, 2));

  // Display with a new decimal point character
  DecimalSeparator := '|';
  ShowMessage('Amount = '+FloatToStrF(amount, ffCurrency, 10, 2));


end;

end.