Method: Tk::Menu::TkInternalFunction.next_menu

Defined in:
lib/tk/menu.rb

.next_menu(menu, dir = 'next') ⇒ Object

These methods calls internal functions of Tcl/Tk. So, They may not work on your Tcl/Tk.



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# File 'lib/tk/menu.rb', line 399

def next_menu(menu, dir='next')
  dir = dir.to_s
  case dir
  when 'next', 'forward', 'down'
    dir = 'right'
  when 'previous', 'backward', 'up'
    dir = 'left'
  end

  Tk.tk_call('::tk::MenuNextMenu', menu, dir)
end