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    Multiple Document Interface

    Last Updated May 24, 2021 1:49 pm
    Webopedia Staff

    Multiple Document Interface (MDI) is a Windows API that enables programmers to easily create applications with multiple windows. Each MDI application has a single main window, and any number of child windows.All child windows are displayed within the main window.

    Although many programmers still use MDI, Microsoft recommends using a newer API called Single Document Interface (SDI).

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