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What does the "wait_window" method do in Tkinter?
Tkinter has many inbuilt functions that power the application logic to make it more functional and maintainable. Tkinter has the wait_window() method which ideally waits for an event to happen and executes the event of the main window. The wait_window() method can be called after the event which needs to happen before the main window event.
The wait_window() method is useful in many applications where a particular event needs to be executed first before the main program.
Example
In this example, we have created a toplevel window, which when gets destroyed, the event in the main window gets executed instantly.
# Import the required libraries
from tkinter import *
# Create an instance of tkinter frame
win= Tk()
# Set the size of the tkinter window
win.geometry("700x350")
# Add a Text widget in a toplevel window
top= Toplevel(win)
top.geometry("450x150")
Label(top,text="This is a TopLevel Window", font= ('Aerial 17')).pack(pady=50)
# Wait for the toplevel window to be closed
win.wait_window(top)
print("Top Level Window has been Closed!")
win.destroy()
win.mainloop()Output
Running the above code will display a Label text in a top-level window. The Main window waits for the top level window to get destroyed.
Once we close the top level window, the Main window closes too and prints a message on the screen.
Top Level Window has been Closed!
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