Tkinter: Bind event to entire window (but not all widgets)

Question

My goal is to bind an Event to the window. For example I want a function called when the mouse pointer enters the window. The code below does this but sadly the function is also called whenever the mouse pointer enters the Button. I tried B.unbind("<Enter>") but it does not work. Any help would be appreciated

import tkinter as tk
root = tk.Tk()

def function(event):
    print("Hello World")

B = tk.Button(root, text ="Label")

root.bind("<Enter>",function)
root.geometry("100x100")
B.pack()

root.mainloop()

No because I do not want the event to bound to the Button, I want it to only be bound to the Background. — A. P, Jun 09 '19 at 00:06

score 3 · Accepted Answer · answered Jun 10 '19 at 02:15

One way to make this work is to check for event.widget and see if it is the root window, which is a instance of Tk.

import tkinter as tk

root = tk.Tk()

def function(event):
    if isinstance(event.widget,tk.Tk): #check if event widget is Tk root window
        print("Hello World")

B = tk.Button(root, text ="Label")

root.bind("<Enter>",function)
root.geometry("100x100")
B.pack()

root.mainloop()

Tkinter: Bind event to entire window (but not all widgets)

1 Answers1

Linked