unit Unit1;

interface

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

  WMCopyDataUnit,
end_uses;

type
  TForm1 = class(TForm)
    Memo1: TMemo;
    Memo2: TMemo;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    FWMCopyDataConnection: TWMCopyDataConnection;
    procedure WMCopyData(var msg: TWMCopyData); message WM_COPYDATA;
    procedure FormCreate(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
  public
    { Public �錾 }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

const WMCopyDataKey: DWORD = $00000001;

procedure TForm1.FormCreate(Sender: TObject);
begin
  FWMCopyDataConnection := TWMCopyDataConnection.Create;
end;

procedure TForm1.FormDestroy(Sender: TObject);
begin
  FWMCopyDataConnection.Free;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
//  ShowMessage(IntToStr(Length(Memo1.Text)));
  FWMCopyDataConnection.SendText(Self.Handle, WMCopyDataKey, Memo1.Text);
end;

procedure TForm1.WMCopyData(var msg: TWMCopyData);
var
  ReceiveText: String;
begin
  if FWMCopyDataConnection.ReceiveText(msg, WMCopyDataKey, ReceiveText) then
  begin
    Memo2.Text := ReceiveText;
  end else
  begin
    inherited;
  end;
end;

end.