[Tkinter-discuss] Menu.unpost not working on Windows?

Hi all, I've been trying to use the "unpost" method on a popup menu and I cannot make it work on Windows. It works fine on Linux, but seems to have no effect on Windows even in simple cases. For example this basic example code the menu is not unposted in Windows and is shown as without the "unpost

[Tkinter-discuss] constraining toplevel windows to be on screen?

I've received a bug report that my application's windows can appear off screen. This happens when a user has two monitors and saves window positions, then runs again later with only one monitor. Tkinter is apparently perfectly happy to display toplevel windows entirely off screen. At least on M