Dear all,

I need to create a modal child window.
So far I use gtk_window, but it has one problem

usually I have self.modal = true in initialize method and self.modal = false in close method.
problem is close method doesn't work if the child window is closed by clicking x button at the frame,
so if a user click it, child window disappear but modal state doesn't change to false so parent window can't be accessed

so my question is,

is it the right way to create a modal child window, if not, what widget should I use?
if it is, what event can I use for changing modal state before close,
I already use delete_event and destroy but it doesn't work


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