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Home: Code Repository: Mastering Delphi 6

Chapter 19 - Project NewGuid

Project Structure

NewGuid.dpr
program NewGUID;

uses
  Forms,
  GuidForm in 'GuidForm.pas' {Form1};

{$R *.RES}

begin
  Application.Initialize;
  Application.CreateForm(TForm1, Form1);
  Application.Run;
end.
GuidForm.pas
unit GUIDForm;

interface

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

type
  TForm1 = class(TForm)
    BtnNew: TButton;
    Memo1: TMemo;
    procedure BtnNewClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

uses
  ComObj, ActiveX;

procedure TForm1.BtnNewClick(Sender: TObject);
var
  ID: TGUID;
  S: string;
begin
  if CoCreateGuid (Id) = s_OK then
  begin
    s := GUIDToString (Id);
    Memo1.Lines.Add (S);
  end;
end;

end.
GuidForm.dfm
object Form1: TForm1
  Left = 207
  Top = 109
  Width = 435
  Height = 244
  Caption = 'New GUID'
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -11
  Font.Name = 'MS Sans Serif'
  Font.Style = []
  OldCreateOrder = True
  PixelsPerInch = 96
  TextHeight = 13
  object BtnNew: TButton
    Left = 8
    Top = 16
    Width = 75
    Height = 25
    Caption = '&New'
    TabOrder = 0
    OnClick = BtnNewClick
  end
  object Memo1: TMemo
    Left = 96
    Top = 16
    Width = 321
    Height = 185
    TabOrder = 1
  end
end