What do you mean by this?
Quote:the secend form is not activate
Does the second window not appear? It must be that you are not calling the function that creates the toplevel window.
Quote:messegeboxes shown on my old form (main form)
What are "messegeboxes"? I think of a message box as a popup window that displays a message. It is a dialog style window that disappears when you press the Ok button. Do you mean adding widgets like Label, Text or Entry? These must be added to the new window just like the button. You must pass the window to parent the widget as an argument in the create call (i.e. tk.Label(new_window, text="This is text in the new window"). When you don't specify a window for a widget, the widget is added to the root window.
tk.Label(text="This will appear in the root window").pack()
tk.Label(popup, text="This will appear in the popup window").pack()
This code makes two windows with buttons displaying the other window:
import tkinter as tk
class PopupWindow(tk.Toplevel):
def __init__(self, parent, *args, **kwargs):
super().__init__(*args, **kwargs)
self.parent = parent
button = tk.Button(self, text="This is the popup window", command=self.button_callback)
button.pack(padx=50, pady=50)
def button_callback(self):
self.parent.deiconify()
self.withdraw()
class MainWindow(tk.Tk):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.popup_window = PopupWindow(self)
self.popup_window.withdraw()
button = tk.Button(self, text="This is the root window", command=self.button_callback)
button.pack(padx=50, pady=50)
def button_callback(self):
self.popup_window.deiconify()
self.withdraw()
MainWindow().mainloop()You may have a good reason for making our interface work this way, but generally this is not a good way to design a user interface. Most user interfaces have only one main window that changes the view to perform different tasks. Any other windows are dialogs that appear for a short time to accomplish a specific task, like a file open dialog.
