unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    TextViewREdVx: TRichEditVx;
    procedure Button1Click(Sender: TObject);
  private
    { Private �錾 }
  public
    { Public �錾 }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
  TextViewREdVx.Vertical := not TextViewREdVx.Vertical; 
end;

end.