t了解如何在窗口打开时禁用按钮

Question

我是'Tkinter'库的新手，我想知道如何在新窗口打开时禁用按钮。例如，如果单击主窗口上的按钮，将打开一个新窗口，并且主窗口上的所有按钮都将被禁用。关闭窗口后，应再次启用按钮

以下是我的代码示例：

from tkinter import *

root = Tk()

def z():
    w = Toplevel()

    bu = Button(w, text = "Click!", font = 'bold')
    bu.pack()

b = Button(root, text = "Click!", command = z)
b.pack()

root.mainloop()

额外：如果有人能告诉我如何在不关闭整个“Tkinter”程序的情况下关闭“root”窗口，我将不胜感激。例如，如果一个辅助窗口打开，我希望能够关闭第一个窗口，或者至少最小化它

Answer 1

你们可以把窗户藏起来

root.withdraw()

# or 

root.iconify()

再来一次

root.deiconify()

---

禁用按钮

b['state'] = 'disabled' 

启用按钮

b['state'] = 'normal'

---

编辑：如@acw1668在评论中所述，当用户使用标题栏上的关闭按钮[X]时，需要win.protocol()运行close_second

import tkinter as tk # PEP8: `import *` is not preferred

# - functions  -

def close_second():
    win.destroy()

    b['state'] = 'normal'

    root.deiconify()

def open_second():
    global win

    b['state'] = 'disabled'
    #root.iconify()
    root.withdraw()

    win = tk.Toplevel()

    win_b = tk.Button(win, text="Close Second", command=close_second)
    win_b.pack()

    # run `close_second` when user used closing button [X] on title bar
    win.protocol("WM_DELETE_WINDOW", close_second)

#  - main  -

root = tk.Tk()

b = tk.Button(root, text="Open Second", command=open_second)
b.pack()

root.mainloop()