Как узнать о нажатии NON-MENU клавиши в момент, когда меню показано?

unit Unit1;
 
interface
 
uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls,
  Forms, Dialogs, Menus;
 
type
  TForm1 = class(TForm)
    MainMenu1: TMainMenu;
    One1: TMenuItem;
    Two1: TMenuItem;
    THree1: TMenuItem;
  private
    {Private declarations}
    procedure WmMenuChar(var m : TMessage); message WM_MENUCHAR;
  public
  {Public declarations}
end;
 
var
  Form1: TForm1;
 
implementation
{$R *.DFM}
 
procedure TForm1.WmMenuChar(var m: TMessage);
begin
  Form1.Caption := 'Non standard menu key pressed';
  m.Result := 1;
end;
 
end.
 
 

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