Project Structure

• LibComp.dpr
• LibCompForm.pas
• LibCompForm.dfm

program LibComp;

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

{$R *.res}

begin
  Application.Initialize;
  Application.CreateForm(TForm1, Form1);
  Application.Run;
end.

unit LibCompForm;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Edit1: TEdit;
    ListBox1: TListBox;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
  ListBox1.Items.add (Edit1.Text);
end;

end.

object Form1: TForm1
  Left = 192
  Top = 107
  Width = 350
  Height = 210
  Caption = 'LibComp'
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -11
  Font.Name = 'MS Sans Serif'
  Font.Style = []
  OldCreateOrder = False
  PixelsPerInch = 96
  TextHeight = 13
  object Button1: TButton
    Left = 56
    Top = 64
    Width = 75
    Height = 25
    Caption = 'Add'
    TabOrder = 0
    OnClick = Button1Click
  end
  object Edit1: TEdit
    Left = 40
    Top = 32
    Width = 105
    Height = 21
    TabOrder = 1
    Text = 'my name'
  end
  object ListBox1: TListBox
    Left = 176
    Top = 32
    Width = 121
    Height = 129
    ItemHeight = 13
    Items.Strings = (
      'marco'
      'john'
      'helen')
    TabOrder = 2
  end
end