in reply to Tk:Dialog is not entirely modal

not sure what you're expecting from a modal dialog, but it's normal for you to still be able to move/close/minimize the main application window (with whatever is inside). but in any case, it's difficult to make a non-built-in box truly modal directly in TK or any other language.
the hardest line to type correctly is: stty erase ^H

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Re^2: Tk:Dialog is not entirely modal
by Anonymous Monk on Nov 08, 2010 at 14:46 UTC
    From Wikipedia (emphasis added):
    In user interface design, a modal window is a child window that requires users to interact with it before they can return to operating the parent application, thus preventing the workflow on the application main window.