PyQt的QMainWindow closeEvent从不被调用 [英] PyQt's QMainWindow closeEvent is never called
本文介绍了PyQt的QMainWindow closeEvent从不被调用的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我在python中使用pyqt4。
当我关闭QMainWindow窗口时,它不由 closeEvent
方法处理。
请有人告诉我这个代码有什么问题:
I'm using pyqt4 in python.
When I close the QMainWindow window , its not handled by closeEvent
method.
Please someone tell me what is wrong with this code:
from PyQt4 import QtCore, QtGui
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(277, 244)
self.centralwidget = QtGui.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
MainWindow.setCentralWidget(self.centralwidget)
self.statusbar = QtGui.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def closeEvent(self,event):
result = QtGui.QMessageBox.question(self,
"Confirm Exit...",
"Are you sure you want to exit ?",
QtGui.QMessageBox.Yes| QtGui.QMessageBox.No)
event.ignore()
if result == QtGui.QMessageBox.Yes:
event.accept()
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
MainWindow = QtGui.QMainWindow()
ui = Ui_MainWindow()
推荐答案
closeEvent
是一种 QMainwindow
的方法,但是您尝试使用它是自己的 Ui_MainWindow
类。尝试这样做:
The closeEvent
is a method of QMainwindow
, but your trying to use it from you're own Ui_MainWindow
class. Try this instead:
from PyQt4 import QtCore, QtGui
class MainWindow(QtGui.QMainWindow):
def __init__(self, *args, **kwargs):
super(MainWindow, self).__init__(*args, **kwargs)
self.setupUi()
def setupUi(self):
self.setObjectName("MainWindow")
self.resize(277, 244)
self.statusbar = QtGui.QStatusBar()
self.statusbar.setObjectName("statusbar")
self.setStatusBar(self.statusbar)
def closeEvent(self,event):
result = QtGui.QMessageBox.question(self,
"Confirm Exit...",
"Are you sure you want to exit ?",
QtGui.QMessageBox.Yes| QtGui.QMessageBox.No)
event.ignore()
if result == QtGui.QMessageBox.Yes:
event.accept()
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
mainWindow = MainWindow()
mainWindow.show()
sys.exit(app.exec_())
如果您想保持尽可能多的结构,请尝试:
If you want to keep as much of your structure as possible, try this:
from PyQt4 import QtCore, QtGui
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(277, 244)
self.centralwidget = QtGui.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
MainWindow.setCentralWidget(self.centralwidget)
self.statusbar = QtGui.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
MainWindow.show()
class MyWindow(QtGui.QMainWindow):
def closeEvent(self,event):
result = QtGui.QMessageBox.question(self,
"Confirm Exit...",
"Are you sure you want to exit ?",
QtGui.QMessageBox.Yes| QtGui.QMessageBox.No)
event.ignore()
if result == QtGui.QMessageBox.Yes:
event.accept()
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
MainWindow = MyWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
sys.exit(app.exec_())
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