ImageGrab.py 文件源码

def grab(bbox=None):
    if sys.platform == "darwin":
        f, file = tempfile.mkstemp('.png')
        os.close(f)
        subprocess.call(['screencapture', '-x', file])
        im = Image.open(file)
        im.load()
        os.unlink(file)
    else:
        size, data = grabber()
        im = Image.frombytes(
            "RGB", size, data,
            # RGB, 32-bit line padding, origo in lower left corner
            "raw", "BGR", (size[0]*3 + 3) & -4, -1
            )
    if bbox:
        im = im.crop(bbox)
    return im