Como identificar a linha atual de um Memo?

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    RichEdit1: TRichEdit;
    StatusBar1: TStatusBar;
    procedure RichEdit1SelectionChange(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

uses RichEdit;

{$R *.dfm}

procedure TForm1.RichEdit1SelectionChange(Sender: TObject);
var
  CharPos: TPoint;
begin
  CharPos.Y := SendMessage(RichEdit1.Handle, EM_EXLINEFROMCHAR, 0,    RichEdit1.SelStart);
  CharPos.X := (RichEdit1.SelStart -
    SendMessage(RichEdit1.Handle, EM_LINEINDEX, CharPos.Y, 0));
  Inc(CharPos.Y);
  Inc(CharPos.X);
  StatusBar1.Panels[0].Text := Format(´Line: ¬3d   Col: ¬3d´, [CharPos.Y, CharPos.X]);
end;

end.