python-3.x - Python 3 Tkinter - 以顶级为主的消息框？

Question

我发现当顶层小部件调用消息框对话框（如“showinfo”）时，会在顶层显示根窗口。有没有办法将顶层窗口设置为消息框对话框的主窗口？

这是一个重现此的脚本：

# -*- coding:utf-8 -*-
# PYTHON 3 ONLY

from tkinter import *
from tkinter import messagebox

root = Tk()
root.title('ROOT WINDOW')
Label(root, text = 'Place the toplevel window over the root window\nThen, push the button and you will see that the root window is again over the toplevel').grid()

topWindow = Toplevel(root)
topWindow.title('TOPLEVEL WINDOW')
Label(topWindow, text = 'This button will open a messagebox but will\ndo a "focus_force()" thing on the root window').grid()
Button(topWindow, text = '[Push me !]', command = lambda: messagebox.showinfo('foo', 'bar!')).grid()

# --

root.mainloop()

Answer 1

您可以将parent参数设置topWindow为showInfo命令：

Button(..., command=lambda: messagebox.showInfo(parent=topWindow, ...))

也可以看看：

• http://effbot.org/tkinterbook/tkinter-standard-dialogs.htm

Answer 2

这可能会解决更多当前版本。

#TEST AREA forcommands/methods/options/attributes
#standard set up header code 2 
from tkinter import *
from tkinter import messagebox
root = Tk()
root.attributes('-fullscreen', True)
root.configure(background='white')
scrW = root.winfo_screenwidth()
scrH = root.winfo_screenheight()  
workwindow = str(1024) + "x" + str(768)+ "+" +str(int((scrW-1024)/2)) + "+" +str(int((scrH-768)/2))
top1 = Toplevel(root, bg="light blue")
top1.geometry(workwindow)
top1.title("Top 1 - Workwindow")
top1.attributes("-topmost", 1)  # make sure top1 is on top to start
root.update()                   # but don't leave it locked in place
top1.attributes("-topmost", 0)  # in case you use lower or lift
#exit button - note: uses grid
b3=Button(root, text="Egress", command=root.destroy)
b3.grid(row=0,column=0,ipadx=10, ipady=10, pady=5, padx=5, sticky = W+N)
#____________________________
root.withdraw()
mb1=messagebox.askquestion(top1, "Pay attention: \nThis is the message?")
messagebox.showinfo("Say Hello", "Hello World")
root.deiconify()
top1.lift(aboveThis=None)
#____________________________
root.mainloop()

Answer 3

Button(..., command=lambda: messagebox.showinfo("The Title", "A piece of text", parent=topWindow))

这肯定会奏效。消息框的语法是

messagebox.Function_Name(title, message [, options]) 

设置父参数是选项之一

Answer 4

topWindow.attributes("-topmost", 1) 在定义顶层之后添加，这应该可以解决问题