Widget.hide() 的问题
问题：小部件“A”是在主窗口“B”中单击按钮后显示的顶级窗口。如何分配一个处理程序来处理单击小部件“A”窗口边框上的“X”后发回的信号（请参阅下面的当前实现）？
def on_mainWindow_B_button_clicked(self, widget):
self.widget_a.show()
def on_widget_a_destroy(self, widget): #this is the handler I have right now yet after it's called and widget.a closes and 'on_mainWindow_B_button_clicked' is called for the second time none of widget.a's children appear in the new window
widget.hide()
Problem: Widget 'A' is a toplevel window that is displayed after a button click in MainWindow 'B'. How do I assign a handler to handle the signal sent back after the 'X' along the window border of Widget 'A' is clicked (see below for current implementation)?
def on_mainWindow_B_button_clicked(self, widget):
self.widget_a.show()
def on_widget_a_destroy(self, widget): #this is the handler I have right now yet after it's called and widget.a closes and 'on_mainWindow_B_button_clicked' is called for the second time none of widget.a's children appear in the new window
widget.hide()
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delete_event信号的处理程序必须返回True才能阻止窗口在关闭时被永久销毁。如果您只想隐藏窗口，可以使用内置快捷方式：
The handler for the
delete_eventsignal must returnTruein order to stop the Window being permanently destroyed on closing.If you only want to have the window hide, there's a builtin shortcut you can use: