closing a widget

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  • Marcus Schneider
    #1

    closing a widget

    Normally I close my windows/widgets with destroy and it works fine.
    Now I have a window (let's call it 1) from where I open an additional
    window (let's call it 2). I close it.
    Each window has its own main loop.
    Now I want to open another window outside the mainloop of window 1. So
    I quit that mainloop, go to a new window, destroy that, enter the
    mainloop of window 1 again and finally exit with destroy.

    All this works in princial, but here's the funny behaviour:

    1) If I don't enter 2 quit works, if I do enter 2, I have to press the
    "quit button" 2 times. Actually I have to press it an additional time
    for every time I opened the window 2. What is happening? How can I
    stop that???

    2) For whatever reason I also have to click two times on the "destroy"
    button at the end of the example. The destroy command is only executed
    the second time I press the button ???!!!

    All the widgest/windows are stand alone object and use their own
    variables..
    Tags: None
    • Marcus Schneider
      #2
      Re: closing a widget

      in the meantime I found a work around, but "there is only one
      mainloop" confuses ME ;)

      When I generate a GUI with page, the function to open the window looks
      like:

      def vp_start_gui():
      global w
      global root
      root = Tix.Tk()
      root.title('xyz ')
      w = Klassenname (root)
      init()
      root.mainloop()

      If I use for different windows different variables (like root1, root2
      etc) and use commands like "root1.mainloop " and "root2.mainloop ",
      shouldn't I get one mainloop per window?

      Regarding your questions:
      I open the new windows rather independently in the same way as
      described above.
      I close windows based on a button pressed.
      With quitting a windows I refer to the quit method.

      Hope that clearifies it to a certain degree;)


      "Michael Peuser" <[email protected] > wrote in message news:<bhpre9$pg [email protected]>...[color=blue]
      > "Marcus Schneider" <mschneider.pad @t-online.de> schrieb im Newsbeitrag
      > news:3f443b52.0 308171454.c00a2 [email protected] le.com...[color=green]
      > > Normally I close my windows/widgets with destroy and it works fine.
      > > Now I have a window (let's call it 1) from where I open an additional
      > > window (let's call it 2).[/color]
      >
      > Do you mean you make (1) the basis of a Toplevel (2) ?[color=green]
      > > I close it.[/color]
      >
      > (2) ? By a button created on that Toplevel ?
      >[color=green]
      > > Each window has its own main loop.[/color]
      >
      > There can only be one mainloop. No idea what happens, when you call mainloop
      > during in an event-routine. Never do it!
      >[color=green]
      > > Now I want to open another window outside the mainloop of window 1.[/color]
      >
      > What do you mean by this?
      >[color=green]
      > > So
      > > I quit that mainloop.[/color]
      >
      > How can you do that? What at all do you mean by "mainloop"? Tkinter.mainloo p
      > I presume?
      >[color=green]
      > > go to[/color]
      >
      > GOTO?
      >[color=green]
      > > a new window, destroy that, enter the
      > > mainloop of window 1 again and finally exit with destroy.
      > >
      > > All this works in princial....[/color]
      >
      > This is a surprises to me...
      > My be I really do not understand what you are doing.....
      >
      > Kindly
      > Michael P.
      >
      > [....][/color]

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