type
  TForm1 = class(TForm)
  private
    { Private declarations }
  public
    procedure WMEXITSIZEMOVE(var Message: TMessage);
      message WM_EXITSIZEMOVE;
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.WMEXITSIZEMOVE(var Message: TMessage);
begin
  Form1.Caption := 'Finished Moving and sizing';
end;