'QPixmap' 没有属性 'grabWindow'

Question

我正在尝试将我的代码从 PyQt4 转换为 PyQt5，但出现错误。

import sys
from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import QApplication
from datetime import datetime

date = datetime.now()
filename = date.strftime('%Y-%m-%d_%H-%M-%S.jpg')
app = QApplication(sys.argv)
QPixmap.grabWindow(QApplication.desktop().winId()).save(filename, 'jpg')


Traceback (most recent call last):
  File "C:\Python34\Projects\name.py", line 9, in <module>
    QPixmap.grabWindow(QApplication.desktop().winId()).save(filename, 'jpg')
AttributeError: type object 'QPixmap' has no attribute 'grabWindow'

Answer 1

您应该改用 QScreen::grabWindow()。 QPixmap::grabWindow() is deprecated in Qt 5.0 because:

there might be platform plugins in which window system identifiers (WId) are local to a screen.

Answer 2

grabWindow 方法现在可用于 QScreen class。

您需要创建 QScreen 对象，用 ex 初始化它。 QtGuiApplication.primaryScreen()然后抢屏

screen.grabWindow(QApplication.desktop().winId())

Answer 3

PyQt5

的完整示例

import sys
from PyQt5.QtWidgets import QApplication
from PyQt5.QtGui import QPixmap, QScreen
from datetime import datetime

date = datetime.now()
filename = date.strftime('%Y-%m-%d_%H-%M-%S.jpg')
app = QApplication(sys.argv)
QScreen.grabWindow(app.primaryScreen(), 
QApplication.desktop().winId()).save(filename, 'png')

'QPixmap' 没有属性 'grabWindow'

'QPixmap' has no attribute 'grabWindow'

python

pyqt5