Rescuing children frames

[Raffaello Barella]

In his book, Robin Dunn recommended to make a spare use of MDI frames. I
followed his advice and now  feel much happier, with only one setback: if my
application gets hidden on the screen by one or more different ones,
clicking the icon in the bar raises only the parent frame and not its
children. I solved this menial problem by adding the following code to the
parent:
in  __init__:
         self.Bind(wx.EVT_PAINT, self.OnPaint)
and then:
    def OnPaint(self, event):
        event.Skip()
        children =3D self.GetChildren()
        for j in range(len(children)):
            if isinstance(children[j], wx.Frame):
                children[j].Raise()

Since the user is supposed to have some use for a child frame when she/he
opens it, I suggest to make this the standard behavior of the parent frame.
But, sorry, I am not yet able to write the underlying C++ code.
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