pyrobot.py 文件源码

def _enumerate_windows(self, visible=True):
    '''
    Loops through the titles of all the "windows."
    Spits out too much junk to to be of immediate use.
    Keeping it here to remind me how the ctypes
    callbacks work.
    '''

    # raise NotImplementedError('Not ready yet. Git outta here!')

    titles = []
    handlers = []

    def worker(hwnd, lParam):
      length = user32.GetWindowTextLengthW(hwnd) + 1
      b = ctypes.create_unicode_buffer(length)
      user32.GetWindowTextW(hwnd, b, length)
      if visible and user32.IsWindowVisible(hwnd):
        title = b.value
        if title:
          titles.append(title)
          handlers.append(hwnd)
      return True

    WNDENUMPROC = ctypes.WINFUNCTYPE(BOOL,
                     HWND,
                     LPARAM)

    if not user32.EnumWindows(WNDENUMPROC(worker), True):
      raise ctypes.WinError()
    else:
      return handlers, titles