I just upgraded to Windows 11 and opened my app that previously looked and worked fine in Windows 10. I am using python 3.11.15 with tkinter.Scrollbar objects for the scrollbars (not ttk). Some of my scrollbars are initializing with normal visuals, with arrows visible (number 1 in photo). Some of my scrollbars are initializing with no arrows visible (number 2 in photo). For number 2, the arrows and slider remain invisible if scrolled with mousewheel but become visible if the scrollbar is selected (number 3 in photo). When I use the top level window menu to select a different app or even the same app, I have it so all tkinter.Widget objects except the base container tkinter.Widget objects are deleted, all tkinter.Variable objects deleted from python and C backend, and then all new widgets and variables are created, including new scrollbars. Sometimes the new scrollbars appear with arrows, sometimes without. I am unsure how to replicate either behavior. Can anyone explain what I need to do to make all my scrollbars initialize with the arrows visible in Windows 11? Do I need to cycle a .focus() call through all my widgets after creating and gridding/packing them? Or do I need to use the tkinter.Scrollbar.activate(index=idk) where idk is one or all of the available options ("arrow1","slider","arrow2" or "")? OR is this just Windows 11 oddness and I should ignore it? I don't believe there is anything wrong with how I've coded the scrollbar objects themselves, as this same behavior is shown in a tutorial I found here: https://pythonassets.com/posts/scrollbar-in-tk-tkinter/ Continue reading...
