tkview.py 文件源码

def _draw_frame(self):
        if ImageTk is None:
            return

        try:
            image = self._img_queue.popleft()
        except IndexError:
            # no new image
            return

        self._first_image = False
        photoImage = ImageTk.PhotoImage(image)

        self.label.configure(image=photoImage)
        self.label.image = photoImage
        # Dynamically expand the image to fit the window. And fill in both X and Y directions.
        self.label.pack(fill=tkinter.BOTH, expand=True)