unit Unit2;

interface

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

type
  TMDIChild = class(TForm)
    MainMenu1: TMainMenu;
    NFileChild: TMenuItem;
    NEdit: TMenuItem;
    NCopy: TMenuItem;
    N1: TMenuItem;
    NCloseChild: TMenuItem;
    NOpenfile: TMenuItem;
    Memo1: TMemo;
    OpenDialog1: TOpenDialog;
    NSavefile: TMenuItem;
    Npaste: TMenuItem;
    NUndo: TMenuItem;
    NClear: TMenuItem;
    NCut: TMenuItem;
    SaveDialog1: TSaveDialog;
    procedure NSavefileClick(Sender: TObject);
    procedure NCutClick(Sender: TObject);
    procedure NClearClick(Sender: TObject);
    procedure NUndoClick(Sender: TObject);
    procedure NpasteClick(Sender: TObject);
    procedure NCopyClick(Sender: TObject);
    procedure NOpenfileClick(Sender: TObject);
    procedure NCloseChildClick(Sender: TObject);
    procedure NNewChildClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  MDIChild: TMDIChild;
  ChildNum: integer;
implementation
{$R *.dfm}

procedure TMDIChild.NNewChildClick(Sender: TObject);
begin
  ShowMessage('111');
end;

procedure TMDIChild.NCloseChildClick(Sender: TObject);
begin
   self.Close;
end;

procedure TMDIChild.NOpenfileClick(Sender: TObject);
begin
    OpenDialog1.Filter := 'Txt Files(*.txt)|*.txt'; //ıļ
    if OpenDialog1.Execute() then
    begin
        Memo1.Clear;
        Memo1.Lines.LoadFromFile(OpenDialog1.FileName);
    end;
end;

procedure TMDIChild.NCopyClick(Sender: TObject);
begin
    Memo1.CopyToClipboard;
end;

procedure TMDIChild.NpasteClick(Sender: TObject);
begin
    Memo1.PasteFromClipboard;
end;

procedure TMDIChild.NUndoClick(Sender: TObject);
begin
    Memo1.Undo;
end;

procedure TMDIChild.NClearClick(Sender: TObject);
begin
    Memo1.Clear;
end;

procedure TMDIChild.NCutClick(Sender: TObject);
begin
    Memo1.CutToClipboard;
end;

procedure TMDIChild.NSavefileClick(Sender: TObject);
begin
    SaveDialog1.Filter := 'Word files(*.doc)|*.doc|Txtfile(*.txt)|*.txt';
//ԱΪdocļtxtļ
    SaveDialog1.FilterIndex := 2;   //ĬʾļΪ*.txtļ
    if SaveDialog1.Execute() then
    begin
        Memo1.Lines.SaveToFile(SaveDialog1.FileName);
    end;
end;
end.
