python监控屏幕变化
时间: 2023-11-10 11:04:32 浏览: 65
可以使用Python的PIL库和Win32api库来监控屏幕变化。具体步骤如下:
1. 使用Win32api库获取屏幕截图;
2. 使用PIL库打开截图并进行处理;
3. 将处理后的图像与之前的图像进行比较,判断是否有变化。
以下是示例代码:
```python
import win32api
from PIL import Image, ImageChops
import time
def capture_screen():
# 获取屏幕截图
hwin = win32api.GetDesktopWindow()
width = win32api.GetSystemMetrics(win32api.SM_CXVIRTUALSCREEN)
height = win32api.GetSystemMetrics(win32api.SM_CYVIRTUALSCREEN)
left = win32api.GetSystemMetrics(win32api.SM_XVIRTUALSCREEN)
top = win32api.GetSystemMetrics(win32api.SM_YVIRTUALSCREEN)
hwindc = win32api.GetWindowDC(hwin)
srcdc = win32api.CreateCompatibleDC(hwindc)
bmp = win32api.CreateCompatibleBitmap(hwindc, width, height)
win32api.SelectObject(srcdc, bmp)
win32api.BitBlt(srcdc, 0, 0, width, height, hwindc, left, top, win32api.SRCCOPY)
win32api.DeleteObject(bmp)
win32api.ReleaseDC(hwin, hwindc)
win32api.DeleteDC(srcdc)
return Image.fromhandle(bmp)
def is_screen_changed(img1, img2):
# 判断屏幕是否有变化
diff = ImageChops.difference(img1, img2)
return diff.getbbox() is not None
# 获取初始屏幕截图
last_screen = capture_screen()
while True:
# 每隔1秒获取一次屏幕截图并判断是否有变化
time.sleep(1)
current_screen = capture_screen()
if is_screen_changed(last_screen, current_screen):
print("Screen changed!")
last_screen = current_screen
```
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