python pyqt4 closeEvent 阻止 Windows 重新启动/关闭？
我在应用程序中添加了 closeEvent，以防止用户按 alt-f4 并关闭应用程序。我现在的问题是，当我在开始菜单中手动关闭或重新启动计算机时，没有任何反应。
def closeEvent(self, event):
event.ignore()
我也尝试了这段代码，但它没有继续执行 if TRUE 语句。
def keyPressEvent(self, event):
if event.key() == QtCore.Qt.Key_F4 and (event.modifiers() &
QtCore.Qt.AltModifier):
print 'do something'
i added closeEvent in my application to prevent the user from pressing alt-f4 and closing the application.My problem now is when i shutdown or restart the computer manually in the start menu, nothing happens.
def closeEvent(self, event):
event.ignore()
i also try this code but it didn't proceed to the if TRUE statement.
def keyPressEvent(self, event):
if event.key() == QtCore.Qt.Key_F4 and (event.modifiers() &
QtCore.Qt.AltModifier):
print 'do something'
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您可以使用QApplication.setQuitOnLastWindowClosed吗？
当设置为
False时，这将使应用程序在顶级窗口关闭时保持活动状态。Could you make use of QApplication.setQuitOnLastWindowClosed?
When set to
False, this will keep the application alive when the top-level window is closed.我不确定你是否想阻止系统关闭，或者允许它关闭，但你应该看看
QApplication.commitData，它通常在系统关闭时调用，例如，您可以在 commitData 中设置一个标志，以帮助区分您应该忽略的正常关闭事件和由
closeEvent函数中的系统引起的事件。I'm not sure if you want to prevent the system from shutting down, or allow it to shutdown, but you should have a look at
QApplication.commitDatawhich is normally called when the system is shutting down, andQSessionManagerYou could for example set a flag in commitData to help differentiate between a normal close event that you should ignore and one that is due to the system in the
closeEventfunction.