2.10messagebox pop-up window

2.10messagebox pop-up window

messagebox widget

In fact, what is here messageboxis the pop-up window we usually see. buttonWe first need to define a trigger function to trigger this pop-up window. Here we will put the button we learned before.

tk.Button(window, text='hit me', command=hit_me).pack()

By triggering the function, callmessagebox

def hit_me():
   tk.messagebox.showinfo(title='Hi', message='hahahaha')

Click the button button here and a prompt dialog window will pop up.

Here are several forms:

tk.messagebox.showinfo(title='',message='')#提示信息对话窗
tk.messagebox.showwarning()#提出警告对话窗
tk.messagebox.showerror()#提出错误对话窗
tk.messagebox.askquestion()#询问选择对话窗

If the following definition is given, it will print out the value corresponding to our selected item.

def hit_me():
   print(tk.messagebox.askquestion(title='Hi', message='hahahaha'))

The renderings

are created in the same way and in the same form.

    print(tk.messagebox.askquestion())#返回yes和no
    print(tk.messagebox.askokcancel())#返回true和false
    print(tk.messagebox.askyesno())#返回true和false
    print(tk.messagebox.askretrycancel())#返回true和false

Code

import tkinter as tk
import tkinter.messagebox

window = tk.Tk()
window.title('my window')
window.geometry('200x200')

def hit_me():
    #tk.messagebox.showinfo(title='Hi', message='hahahaha')   # return 'ok'
    #tk.messagebox.showwarning(title='Hi', message='nononono')   # return 'ok'
    #tk.messagebox.showerror(title='Hi', message='No!! never')   # return 'ok'
    #print(tk.messagebox.askquestion(title='Hi', message='hahahaha'))   # return 'yes' , 'no'
    #print(tk.messagebox.askyesno(title='Hi', message='hahahaha'))   # return True, False
    print(tk.messagebox.asktrycancel(title='Hi', message='hahahaha'))   # return True, False
    print(tk.messagebox.askokcancel(title='Hi', message='hahahaha'))   # return True, False
    print(tk.messagebox.askyesnocancel(title="Hi", message="haha"))     # return, True, False, None

tk.Button(window, text='hit me', command=hit_me).pack()
window.mainloop()