我正在尝试比较我的 pyautogui 脚本中的某些像素值,但它在多次成功运行后崩溃并出现以下错误消息,或者有时只是在第一次调用时直接崩溃:
Traceback (most recent call last):
File "F:\Koodit\Python\HeroWars NNet\Assets\autodataGet.py", line 219, in <module>
battle = observeBattle()
File "F:\Koodit\Python\HeroWars NNet\Assets\autodataGet.py", line 180, in observeBattle
statii = getHeroBattlePixels()
File "F:\Koodit\Python\HeroWars NNet\Assets\autodataGet.py", line 32, in getHeroBattlePixels
colormatch = pyautogui.pixelMatchesColor(location[0], location[1], alive, tolerance=5)
File "E:\Program Files\Python\lib\site-packages\pyscreeze\__init__.py", line 557, in pixelMatchesColor
pix = pixel(x, y)
File "E:\Program Files\Python\lib\site-packages\pyscreeze\__init__.py", line 582, in pixel
return (r, g, b)
File "E:\Program Files\Python\lib\contextlib.py", line 120, in __exit__
next(self.gen)
File "E:\Program Files\Python\lib\site-packages\pyscreeze\__init__.py", line 111, in __win32_openDC
raise WindowsError("windll.user32.ReleaseDC failed : return 0")
OSError: windll.user32.ReleaseDC failed : return 0
我的代码(这被多次调用,有时它在第一次运行时崩溃,有时它在失败之前很好地运行了大约 100 次调用,另外,我的屏幕是 4K,所以分辨率变大了):
def getSomePixelStatuses():
someLocations= [
[1200, 990],
[1300, 990],
[1400, 990],
[1500, 990],
[1602, 990],
[1768, 990],
[1868, 990],
[1968, 990],
[2068, 990],
[2169, 990]
]
status = []
someValue= (92, 13, 12)
for location in someLocations:
colormatch = pyautogui.pixelMatchesColor(location[0], location[1], someValue, tolerance=5)
status.append(colormatch)
return status
我不知道如何缓解这个问题。看起来 pyautogui 使用 pyscreez 来读取屏幕上的像素值,最有可能出现错误的地方是 pyscreez 像素函数:
def pixel(x, y):
"""
TODO
"""
if sys.platform == 'win32':
# On Windows, calling GetDC() and GetPixel() is twice as fast as using our screenshot() function.
with __win32_openDC(0) as hdc: # handle will be released automatically
color = windll.gdi32.GetPixel(hdc, x, y)
if color < 0:
raise WindowsError("windll.gdi32.GetPixel failed : return {}".format(color))
# color is in the format 0xbbggrr https://msdn.microsoft.com/en-us/library/windows/desktop/dd183449(v=vs.85).aspx
bbggrr = "{:0>6x}".format(color) # bbggrr => 'bbggrr' (hex)
b, g, r = (int(bbggrr[i:i+2], 16) for i in range(0, 6, 2))
return (r, g, b)
else:
# Need to select only the first three values of the color in
# case the returned pixel has an alpha channel
return RGB(*(screenshot().getpixel((x, y))[:3]))
我昨天刚刚安装了这些库,我在 Windows 10 上运行 python 3.8,而 pyscreez 是 0.1.25 版,所以理论上一切都应该是最新的,但不知何故最终崩溃了。有没有办法缓解这种情况,要么修改我的代码,甚至修改库本身,还是我的环境不适合这个操作?