Python Forum
[Tkinter] calling a new window from a tkinter window
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
[Tkinter] calling a new window from a tkinter window
#1
I'm having trouble navigating nested windows calls with tkinter. The first window builds and executes well, with a window.mainloop() statement at at the end to set up the window polling.

But now, when I use a button to call a function, which in turn, opens up a new window, I end up with a parallel window that does not wait for the return values returned by the second function. In this case the second window is just a simple dropdown menu, with user selected choice, which should be returned to the main function. Everything works, except the code that calls the new window doesn't wait, and then execute subsequent code. I started exploring wait_window(), but don't understand how that might help.
Reply
#2
I don't understand what you are asking, can you show a minimal example of runnable code.
Reply
#3
In a script you can write some text, prompt for input, and perform some action based on the input. In a GUI you cannot use this pattern because the GUI cannot control what the user does next. If you draw a window with a menu the user might close your window and not make a menu selection. This must be allowed. In a GUI application you would draw the window with the menu, and specify a function to call when the menu selection is made.

So if your logic is:
Make menu
Draw menu
Wait for selection
Process selection

You should change it to:
Make menu, bind menu to call Process selection
Draw Menu
Reply


Possibly Related Threads…
Thread Author Replies Views Last Post
  TKinter restarting the mainloop when button pressed zazas321 7 179 2 hours ago
Last Post: zazas321
  [PyQt] Opening new window ifigazsi 2 95 Jan-20-2021, 04:16 PM
Last Post: ifigazsi
Question closing a "nested" window with a button in PySimpleGUI and repeating this process Robby_PY 9 477 Jan-18-2021, 10:21 PM
Last Post: Serafim
  Super basic tkinter arduino issue Kurta 3 180 Jan-07-2021, 05:22 PM
Last Post: deanhystad
  Trying to make random image loop in Tk window using python Jediguy18 1 193 Dec-30-2020, 04:56 AM
Last Post: deanhystad
  Using Tkinter inside function not working Ensaimadeta 3 212 Dec-23-2020, 02:57 PM
Last Post: deanhystad
Question [Tkinter] Can I set background color for each item in tkinter Combobox? water 1 218 Dec-10-2020, 07:48 PM
Last Post: Larz60+
Photo tkinter issue mate 4 240 Dec-06-2020, 09:03 PM
Last Post: mate
  function in new window (tkinter) Dale22 7 366 Nov-24-2020, 11:28 PM
Last Post: Dale22
  [Tkinter] acceleration of data output in treeview tkinter Vladimir1984 4 315 Nov-21-2020, 03:43 PM
Last Post: Vladimir1984

Forum Jump:

User Panel Messages

Announcements
Announcement #1 8/1/2020
Announcement #2 8/2/2020
Announcement #3 8/6/2020