Python Tkinter打开一个窗口而不是两个

Question

I'm working on a GUI using tkinter. I got a main menu and inside this menu three buttons. I would like to open a new window by clicking on button 3. In my code now its doing what i almost want. BUT as you can see i've added to button 3 a command to destroy the main root to go to the second one. But this will cause problems for example: When I want to close the main menu it will open the second root automaticly. I just tryd to be creative because i couldnt find another way out to open a new window with a different background image. Any ideas, trics or functions that i could use to make life easier? mycode:

from tkinter import *
from tkinter.messagebox import showinfo


def clicked1():
    bericht = 'Deze functie is uitgeschakeld.'
    showinfo(title='popup', message=bericht)

root = Tk()

def quit():
    root.destroy()

a = root.wm_attributes('-fullscreen', 1)
#full screen


#w, h = root.winfo_screenwidth(), root.winfo_screenheight()
#root.geometry("%dx%d+0+0" % (w, h))


#Hoofdmenu achtergrond
C = Canvas(root, bg="blue", height=250, width=300)
filename = PhotoImage(file="C:\\Users\\Downloads\\test1.png")
background_label = Label(root, image=filename)
background_label.place(x=0, y=0, relwidth=1, relheight=1)
C.pack()


# Geen OV-chipkaart button
b=Button(master=root, command=clicked1)
photo=PhotoImage(file="C:\\Users\\Downloads\\button1.png")
b.config(image=photo,width="136",height="53", background='black')
b.place(x=310, y=340)

#exit button
exitbut = PhotoImage(file = "C:\\Users\\Downloads\\exit1.png")
starter = Label(image = exitbut)
starter.pack()

start = Label(image = exitbut)
start.place(x=900, y=140)

#Buitenland button
b2=Button(master=root, command=clicked1)
photo1=PhotoImage(file="C:\\Users\\Downloads\\button2.png")
b2.config(image=photo1,width="136",height="53", background='black')
b2.place(x=490, y=340)

#Reis informatie
b3=Button(master=root, command=quit)
photo2=PhotoImage(file="C:\\Users\\Downloads\\button3.png")
b3.config(image=photo2,width="136",height="53", background='black')
b3.place(x=680, y=340)


root.mainloop()


#2e window-------------------------------------------------------------
root2 = Tk()

#full screen
a = root2.wm_attributes('-fullscreen', 1)

#achtergrond
D = Canvas(root2, bg="blue", height=250, width=300)
filename = PhotoImage(file = "C:\\Users\\Downloads\\leeg.png")
background_label = Label(root2, image=filename)
background_label.place(x=0, y=0, relwidth=1, relheight=1)
D.pack()

# Geen OV-chipkaart button
c1=Button(master=root2, command=clicked1)
photo3=PhotoImage(file="C:\\Users\\Downloads\\mijnlocatie.png")
c1.config(image=photo3,width="136",height="53", background='black')
c1.place(x=210, y=70)

# Geen OV-chipkaart button
c2=Button(master=root2, command=clicked1)
photo4=PhotoImage(file="C:\\Users\\Downloads\\overigelocaties.png")
c2.config(image=photo4,width="136",height="53", background='black')
c2.place(x=210, y=140)


root2.mainloop()

Answer 1

You really shouldn't have two Tk instances. tkinter is not designed to work that way. If you want another window on top of your root one, use Toplevel . Also, I suggest you stick to OOP approach and keep your windows as separate classes. For example:

import tkinter as tk

class App(tk.Tk):

    def __init__(self):
        super().__init__()
        self.create_widgets()

    def create_widgets(self):
        """
        Instantiating all root window widgets
        """
        tk.Button(self, text='Open another window', command=self.open_dialog).pack()

    def open_dialog(self):
        d = Dialog(self)
        d.wait_window()

class Dialog(tk.Toplevel):

    def __init__(self, parent):
        super().__init__(parent)
        self.create_widgets()

    def create_widgets(self):
        """
        Instantiating all toplevel window widgets
        """
        tk.Label(self, text='Welcome to another window!').pack(padx=20, pady=50)

if __name__ == '__main__':
    app = App()
    app.mainloop()

Answer 2

This will solve the problem for you by using Toplevel instead of calling two Tk instances . You can add your full screen attribute and images if you do it this way. Toplevel means slave window to the root window so if you close the root window it will close the the Toplevel window to . I changed your quit function to quit_window as you can also root.quit() to close the window.

from tkinter import *


def slave1():
    tp = Toplevel()
    tp.geometry("400x400")
    b = Button(tp, text="button") # you can add you image to it using photoimage
    b.place(x=200, y=200)


def quit_root():
    root.destroy()



root = Tk()
root.geometry("500x500")

button1 = Button(root, text="button one", command=slave1)
button2 = Button(root, text="button two")
button3 = Button(root, text="button three", command=quit_root)

button1.place(x=210, y=340)
button2.place(x=340, y=370)
button3.place(x=370, y=420)

root.mainloop()