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- #!/usr/bin/env python
- # -*- coding: utf-8 -*-
- from tkinter import ttk
- import tkinter as tk
- class Application(ttk.Frame):
- def __init__(self, main_window):
- super().__init__(main_window)
- main_window.title("Combobox")
- self.combo_text = tk.StringVar()
- self.combo_text.trace("w", self.text_changed)
- self.combo = ttk.Combobox(self, textvariable=self.combo_text)
- self.combo.place(x=50, y=50)
- main_window.configure(width=300, height=200)
- self.place(width=300, height=200)
- def text_changed(self, *args):
- "Esta función es invocada cada vez que el texto cambia."
- print("Text changed.")
- main_window = tk.Tk()
- app = Application(main_window)
- app.mainloop()
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