CODEWITHSUNDEEP
python-3.xtkinter
Rinku
Rinku

Reputation: 1

How to bind Return key for "exit" text to close tkinter (Python) gui window?

With this below Python code, I wanted to

  1. type "exit"
  2. press "enter" key from keyboard
  3. Close the tkinter window

But post typing "exit" and pressing "Enter" key from keyboard, the "tk window" is not closing.

And the Code is:

import tkinter as tk

window = tk.Tk()

greeting = tk.Label(text = "Test Tk window Frame")
user_input = tk.Text()

user_input.pack()
greeting.pack()

   
def chat(event=None):
    inputmsg = user_input.get(tk.END)
    if inputmsg is None or inputmsg == "": 
        return None

    if inputmsg.lower() == "exit"
        inputmsg.bind('<Return>', lambda e: window.destroy()) # NOT Working
        #window.destroy() # Not Working
        return None

user_input.bind("<Return>", chat) # NOT Working out

window.mainloop()

My intention is to Bind ONLY RETURN KEY and not with a Button. As I'm new to Python with tkinter, Can anyone please share any thought/ ref on this?

Thank you.

Upvotes: 0

Views: 430

Answers (1)

mathfux
mathfux

Reputation: 5949

The source of problem is incorrect fetch of the entry text. So inputmsg is never exit after you enter it. You should use:

user_input.get(1.0, "end-1c")

Read this answer and its comments for further details about these parameters

UPDATE: if only the last line is required you can set your parameters in two ways:

user_input.get("end-5c", "end-1c") #extract 4 symbols before the last (which is '\n')
user_input.get("end-1c linestart", "end-1c lineend") #extract the last line from start to end

Upvotes: 1

Related Questions