class Reline::Windows

def self.clear_screen
  if @@legacy_console
    return unless csbi = get_console_screen_buffer_info
    buffer_width, _buffer_lines, attributes, window_top, window_bottom = csbi.unpack('ss@8S@12sx2s')
    fill_length = buffer_width * (window_bottom - window_top + 1)
    screen_topleft = window_top * 65536
    written = 0.chr * 4
    @@FillConsoleOutputCharacter.call(@@hConsoleHandle, 0x20, fill_length, screen_topleft, written)
    @@FillConsoleOutputAttribute.call(@@hConsoleHandle, attributes, fill_length, screen_topleft, written)
    @@SetConsoleCursorPosition.call(@@hConsoleHandle, screen_topleft)
  else
    @@output.write "\e[2J" "\e[H"
  end
end