[Albano]

Código Delphi [-]
unit Unit2;

interface

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

type
  TForm2 = class(TForm)
    Edit1: TEdit;
    procedure FormShow(Sender: TObject);
    procedure di_hola;
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

{$R *.dfm}

procedure TForm2.di_hola;
begin
  edit1.Text := 'hola';
end;

procedure TForm2.FormShow(Sender: TObject);
begin
  di_hola;
end;

end.

De esta manera funciona... Mira donde esta declarado el procedimiento.