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How to Set Focus For Tkinter Widget?

2 minutes read

To set focus for a tkinter widget, you can use the focus_set() method available for most tkinter widgets. This method allows you to programmatically set the focus on a specific widget, making it the active widget that will receive keyboard input. To use this method, simply call widget.focus_set() on the widget you want to set focus on. This can be useful for ensuring that the user's input is directed to the correct widget, especially in situations where multiple widgets are present on the window.


How to set focus on a widget within a frame in Tkinter?

To set focus on a widget within a frame in Tkinter, you can use the focus_set() method on the widget you want to set focus on. Here is an example:

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import tkinter as tk

root = tk.Tk()

frame = tk.Frame(root)
frame.pack()

entry = tk.Entry(frame)
entry.pack()

button = tk.Button(frame, text="Submit")
button.pack()

# Set focus on the entry widget
entry.focus_set()

root.mainloop()


In this example, we create a frame and add an entry widget and a button widget to it. We then use the focus_set() method on the entry widget to set focus on it. When the program runs, the cursor will be placed in the entry widget, indicating that it has focus.


How to remove focus from a widget in Tkinter?

To remove focus from a widget in Tkinter, you can use the .focus_set() method on another widget that you want to give focus to. Here's an example:

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import tkinter as tk

def remove_focus():
    button2.focus_set()

root = tk.Tk()

button1 = tk.Button(root, text="Button 1")
button1.pack()

button2 = tk.Button(root, text="Button 2")
button2.pack()

button1.focus_set()

remove_focus_button = tk.Button(root, text="Remove Focus", command=remove_focus)
remove_focus_button.pack()

root.mainloop()


In this example, we have two buttons (button1 and button2) and a "Remove Focus" button. By default, button1 has the focus. When you click the "Remove Focus" button, the focus will be removed from button1 and set to button2.


How to change the focus to a different widget in Tkinter?

In Tkinter, you can change the focus to a different widget by using the focus_set() method on the widget you want to shift the focus to. Here's an example:

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import tkinter as tk

def change_focus():
    entry2.focus_set()

root = tk.Tk()

entry1 = tk.Entry(root)
entry1.pack()

entry2 = tk.Entry(root)
entry2.pack()

button = tk.Button(root, text="Change Focus", command=change_focus)
button.pack()

root.mainloop()


In this example, we have two Entry widgets and a Button widget in a Tkinter window. When the button is clicked, the change_focus() function is called which then sets the focus to entry2 using the focus_set() method on entry2.

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