如何处理 Tkinter 中的窗口关闭事件? [英] How do I handle the window close event in Tkinter?

问题描述

如何在 Python Tkinter 程序中处理窗口关闭事件(用户单击X"按钮)?

How do I handle the window close event (user clicking the 'X' button) in a Python Tkinter program?

推荐答案

Tkinter 支持一种名为 协议处理程序.这里，术语协议指的是应用程序和窗口管理器之间的交互.最常用的协议称为WM_DELETE_WINDOW，用于定义当用户使用窗口管理器显式关闭窗口时会发生什么.

Tkinter supports a mechanism called protocol handlers. Here, the term protocol refers to the interaction between the application and the window manager. The most commonly used protocol is called WM_DELETE_WINDOW, and is used to define what happens when the user explicitly closes a window using the window manager.

您可以使用 protocol 方法为该协议安装处理程序(小部件必须是 Tk 或 Toplevel 小部件):

You can use the protocol method to install a handler for this protocol (the widget must be a Tk or Toplevel widget):

这里有一个具体的例子:

Here you have a concrete example:

import tkinter as tk
from tkinter import messagebox

root = tk.Tk()

def on_closing():
    if messagebox.askokcancel("Quit", "Do you want to quit?"):
        root.destroy()

root.protocol("WM_DELETE_WINDOW", on_closing)
root.mainloop()

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