我可以通过单击 messagebox.showinfo 中的“确定”来拨打 function 吗？

Question

I have added a message box in my code and I want to call a function defined earlier when clicking the 'OK' button in the message box. Is there any way to achieve this? Thanks in advance.

messagebox.showinfo('Correct', 'Correct!\nClick OK to continue')

Answer 1

When you make a showinfo box, it actually halts your script until you press OK. All you will need to do is put the function you want right after it.

See this example:

import tkinter as tk
from tkinter import messagebox

def go():
    messagebox.showinfo('Correct', 'Correct!\nClick OK to continue')
    print('yeah')

root = tk.Tk()

btn = tk.Button(root, text='click', command=go)
btn.pack()

root.mainloop()

If you run that, you will see the print('yeah') only happens when the user clicks OK. So, you can do something similar and call the function where I have put the print.

Answer 2

I had a similar problem and looked for a simple code. You can use:

from tkinter import Tk,messagebox

root=Tk() 
result=messagebox.showinfo('Correct','Correct!')
root.destroy()
go()

I used root.destroy() because sometimes I had problems closing the popup window.

In tkinter.messagebox.showinfo your only option is to press OK or close the tkinter popup window, both has the same effect and returns a string "ok".

If you instead want to call a function only when you press yes use tkinter.messagebox.askyesno:

from tkinter import Tk,messagebox

root=Tk() 
result=messagebox.askyesno('Correct','Correct!')
root.destroy()
if result==True:
    go()