I am working on a program that has a virtual keyboard I created using Tkinter. The pages that have the keyboard enabled have entry widgets where the users need to input data. I am using pyautogui as part of the virtual keyboard to simulate the keyboard presses, but my issue is the widget that is focused when a user presses on any of the buttons on the keyboard. Since each keyboard button is a ttk.Button when they press the keys, the button has the focus, and not the Entry widget they had selected they were trying to put data in.

As such right now I have the method which runs the keypresses, calling a specific widget to become the focus before it does the key press. Here's the code I have right now:

import tkinter as tk
from tkinter import ttk
import pyautoguidef drawKeyboard(parent):keyboardFrame = tk.Frame(parent)keyboardFrame.pack()keys = [[ ("Alpha Keys"),[ ('q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p'),(' ', 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l'),('capslock', 'z', 'x', 'c', 'v', 'b', 'n', 'm'),('delete', 'backspace', 'home', 'end')]],[ ("Numeric Keys"),[ ('7', '8', '9'),('4', '5', '6'),('1', '2', '3'),(' ', '0', ' ')]]]for key_section in keys:sect_vals = key_section[1]sect_frame = tk.Frame(keyboardFrame)sect_frame.pack(side = 'left', expand = 'yes', fill = 'both', padx = 10, pady = 10, ipadx = 10, ipady = 10)for key_group in sect_vals:group_frame = tk.Frame(sect_frame)group_frame.pack(side = 'top', expand = 'yes', fill = 'both')for key in key_group:key = key.capitalize()if len(key) <= 1:key_button = ttk.Button(group_frame, text = key, width = 4)else:key_button = ttk.Button(group_frame, text = key.center(5, ' '))if ' ' in key:key_button['state'] = 'disable'key_button['command'] = lambda q=key.lower(): key_command(q)key_button.pack(side = 'left', fill = 'both', expand = 'yes')def key_command(event):entry1.focus()pyautogui.press(event)returnroot = tk.Tk()
entry1 = tk.Entry(root)
entry1.pack()
entry2 = tk.Entry(root)
entry2.pack()
drawKeyboard(root)
root.mainloop()

Obviously manually calling entry1.focus() does me no good if I want to input data into entry2. And calling entry2.focus() does no good if I want to put data into entry1. So is there a way for me to every time one of my buttons is pressed check to see which Entry Widget last had focus?

I need to check for specifically entry widgets as the final screen will also have some radio buttons and such. Thanks for your time

EDIT: I made a quick change to the code, exchanging the Shift key for the Capslock key. I realized that the way my code worked Shift would never actually work since you couldn't exactly hold it down and press another button.

You can set the attribute takefocus to False to prevent the buttons from taking focus. This has the unfortunate side effect of not being able to traverse the buttons using the keyboard (which might be ok, since you're in a no-keyboard situation)

...key_button = ttk.Button(..., takefocus=False)
...
def key_command(event):entry = root.focus_get()entry.insert("end", event)pyautogui.press(event)return

Another solution is to add a binding on the <FocusIn> event where you can save the widget in a global variable.

def key_command(event):focused_entry.insert("end", event)pyautogui.press(event)returndef remember_focus(event):global focused_entryfocused_entry = event.widgetentry1.bind("<FocusIn>", remember_focus)
entry2.bind("<FocusIn>", remember_focus)

If you have many entry widgets, you can do a class binding on the Entry class instead:

root.bind_class("Entry", "<FocusIn>", remember_focus)