Question

问题：小工具'A'是在MainWindow'B'中单击按钮后显示的顶级窗口。我如何指定一个处理程序来处理在单击Widget'A'的窗口边界'X'后发回的信号（参见下面的当前实现）？

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()

Answer 1

delete_event信号的处理程序必须返回True才能阻止Window在关闭时被永久销毁。

    self.widget_a.connect('delete_event', self.on_widget_a_delete)

def on_widget_a_delete(self, widget, event):
    widget.hide()
    # do something
    return True

如果您只想隐藏窗口，可以使用内置快捷方式：

self.widget_a.connect('delete_event', self.widget_a.hide_on_delete)

与Widget.hide（）的问题

1 个答案: