How to Make A Window Fullscreen In A Secondary Display With Tkinter?

To make a window fullscreen in a secondary display with tkinter, you can use the fullscreen method of the Tk window object. First, you will need to identify the screen where you want the window to be displayed by calling the screens() method of the Tk object. Once you have identified the desired screen, you can set the window to fullscreen using the fullscreen method with the appropriate screen parameter. This will display the window in fullscreen mode on the specified secondary display.

How to configure a scrollbar in tkinter?

To configure a scrollbar in tkinter, you can use the Scrollbar widget in combination with a widget that supports scrolling, such as a Listbox or Canvas. Here is an example of how to configure a vertical scrollbar for a Listbox widget:

1. Create an instance of the Listbox widget and the Scrollbar widget:

1
2
3
4
5

from tkinter import *

root = Tk()
listbox = Listbox(root)
scrollbar = Scrollbar(root)

1. Configure the Scrollbar widget to control the Listbox widget:

1
2
3
4
5

scrollbar.config(command=listbox.yview)
listbox.config(yscrollcommand=scrollbar.set)

scrollbar.pack(side=RIGHT, fill=Y)
listbox.pack(side=LEFT, fill=BOTH, expand=True)

1. Add some items to the Listbox widget:

1
2

for i in range(100):
    listbox.insert(END, f"Item {i}")

1. Finally, start the tkinter main event loop:

1

root.mainloop()

This code sets up a Listbox widget with a vertical Scrollbar on the right. The yscrollcommand of the Listbox is set to the set method of the Scrollbar and the command of the Scrollbar is set to the yview method of the Listbox. This allows the scrollbar to control the scrolling of the listbox.

How to get the value of a selected radio button in tkinter?

To get the value of a selected radio button in tkinter, you can create a tkinter IntVar variable and associate it with the selected radio button using the variable option. Then, you can use the get() method of the IntVar variable to get the value of the selected radio button.

Here is an example code snippet to demonstrate how to get the value of a selected radio button in tkinter:

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

import tkinter as tk

def get_selected_value():
    selected_value = radio_var.get()
    print(selected_value)

root = tk.Tk()

radio_var = tk.IntVar()

radio_button1 = tk.Radiobutton(root, text="Option 1", variable=radio_var, value=1)
radio_button1.pack()

radio_button2 = tk.Radiobutton(root, text="Option 2", variable=radio_var, value=2)
radio_button2.pack()

radio_button3 = tk.Radiobutton(root, text="Option 3", variable=radio_var, value=3)
radio_button3.pack()

button = tk.Button(root, text="Get Selected Value", command=get_selected_value)
button.pack()

root.mainloop()

In this example, a tkinter IntVar variable radio_var is created and associated with the selected radio buttons using the variable option. The selected value can be obtained by calling get() method on the radio_var variable in the get_selected_value() function.

How to draw shapes on a canvas in tkinter?

To draw shapes on a canvas in tkinter, you can use the create_ methods available for the Canvas widget. Here are some examples of how to draw different shapes on a canvas:

1. Rectangle:

1
2
3
4
5
6
7
8
9

import tkinter as tk

root = tk.Tk()
canvas = tk.Canvas(root, width=200, height=200)
canvas.pack()

canvas.create_rectangle(50, 50, 150, 150, fill='blue')

root.mainloop()

1. Circle:

1
2
3
4
5
6
7
8
9

import tkinter as tk

root = tk.Tk()
canvas = tk.Canvas(root, width=200, height=200)
canvas.pack()

canvas.create_oval(50, 50, 150, 150, fill='red')

root.mainloop()

1. Line:

1
2
3
4
5
6
7
8
9

import tkinter as tk

root = tk.Tk()
canvas = tk.Canvas(root, width=200, height=200)
canvas.pack()

canvas.create_line(50, 50, 150, 150, fill='green')

root.mainloop()

1. Polygon:

 1
 2
 3
 4
 5
 6
 7
 8
 9
10

import tkinter as tk

root = tk.Tk()
canvas = tk.Canvas(root, width=200, height=200)
canvas.pack()

points = [50, 50, 100, 50, 150, 100, 100, 150, 50, 150]
canvas.create_polygon(points, fill='yellow')

root.mainloop()

These are just a few examples of how to draw shapes on a canvas in tkinter. You can explore more options and customization by referring to the tkinter documentation.

How to change the text of a label in tkinter?

To change the text of a label in tkinter, you can use the config method of the label. Here is an example code snippet that demonstrates how to change the text of a label in tkinter:

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14

import tkinter as tk

def change_text():
    label.config(text="New Text")

root = tk.Tk()

label = tk.Label(root, text="Original Text")
label.pack()

button = tk.Button(root, text="Change Text", command=change_text)
button.pack()

root.mainloop()

In this code, we create a label with the initial text "Original Text". We also create a button that, when clicked, calls the change_text function. Inside the change_text function, we use the config method of the label to change its text to "New Text". When you run the code and click the "Change Text" button, the label text will be updated to "New Text".