delphi枚举全部窗体

源代码：
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unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Memo1: TMemo;
    Label1: TLabel;
    Label2: TLabel;
    Memo2: TMemo;
    procedure Button1Click(Sender: TObject);
  *******
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  function EnumWindowsProc_3(hwnd1:HWND;lParam1:LPARAM):Boolean;stdcall;

implementation

{$R *.dfm}
{$APPTYPE CONSOLE}

function EnumWindowsProc_3(hwnd1:HWND;lParam1:LPARAM):Boolean;stdcall;
var
  c1: array[0..255] of char;
  c2: array[0..255] of char;

begin
  GetClassName(hwnd1,c1,255);
  form1.memo1.Lines.Add(c1);
  GetWindowText(hwnd1,c2,255);
  form1.Memo2.Lines.Add(c2);
  Result:=true;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  memo1.Lines.Clear;
  memo2.Lines.Clear;
  EnumWindows(@EnumWindowsProc_3,0);
end;

end.