Автор Arx ( http //arxoft

Автор: Arx ( http://arxoft.tora.ru )

Создайте обработчик сообщения WM_MENUCHAR.

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.

Источник: www.proext.com