问题描述
每当我的应用失去焦点时,我都会尝试收到通知。但简单地重新实现“focusOutEvent”是行不通的。
我发现这是一种解决方法:
PyQt window focus events not called
但是我仍然很感兴趣,是否有办法以某种方式简单地使用“focusOutEvent”。这是一个小示例应用,它对我的 focusevents 没有任何帮助。
#!/usr/bin/python3
from pyside2.QtGui import *
from pyside2.QtCore import *
from pyside2.QtWidgets import *
import sys
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
print("Window created")
def focusOutEvent(self,e):
print(e)
print("window lost focus")
def main():
app = QApplication(sys.argv)
window = MainWindow()
window.show()
app.exec_()
if __name__ == '__main__':
main()
解决方法
您要查找的内容称为 QEvent.WindowActivate
和 QEvent.WindowDeactivate
from PySide2 import QtWidgets
from PySide2 import QtCore
class Window(QtWidgets.QMainWindow):
def event(self,event):
if event.type() == QtCore.QEvent.WindowActivate:
print('WindowActivate')
elif event.type() == QtCore.QEvent.WindowDeactivate:
print('WindowDeactivate')
return super().event(event)
if __name__ == "__main__":
app = QtWidgets.QApplication([])
window = Window()
window.show()
app.exec_()