Python Tkinter - Scale Widget

Last Updated : 23 Dec, 2021

Tkinter is a GUI toolkit used in python to make user-friendly GUIs.Tkinter is the most commonly used and the most basic GUI framework available in python. Tkinter uses an object-oriented approach to make GUIs. Note: For more information, refer to Python GUI – tkinter

Scale widget

The Scale widget is used whenever we want to select a specific value from a range of values. It provides a sliding bar through which we can select the values by sliding from left to right or top to bottom depending upon the orientation of our sliding bar. Syntax:

S = Scale(root, bg, fg, bd, command, orient, from_, to, ..)

Optional parameters

root - root window.
bg - background colour
fg - foreground colour
bd - border
orient - orientation(vertical or horizontal)
from_ - starting value
to - ending value
troughcolor - set colour for trough.
state - decides if the widget will be responsive or unresponsive.
sliderlength - decides the length of the slider.
label - to display label in the widget.
highlightbackground - the colour of the focus when widget is not focused.
cursor - The cursor on the widget which could be arrow, circle, dot etc.

Methods

set(value) - set the value for scale.
get() - get the value of scale.

Example 1: Creating a horizontal bar

Python3 1==

# Python program to demonstrate
# scale widget

from tkinter import * 


root = Tk()  
root.geometry("400x300") 

v1 = DoubleVar()

def show1():  
    
    sel = "Horizontal Scale Value = " + str(v1.get())
    l1.config(text = sel, font =("Courier", 14))  


s1 = Scale( root, variable = v1, 
           from_ = 1, to = 100, 
           orient = HORIZONTAL)   

l3 = Label(root, text = "Horizontal Scaler")

b1 = Button(root, text ="Display Horizontal", 
            command = show1, 
            bg = "yellow")  

l1 = Label(root)


s1.pack(anchor = CENTER) 
l3.pack()
b1.pack(anchor = CENTER)
l1.pack() 

root.mainloop()

Output:

Example 2: Creating a vertical slider

Python3 1==

from tkinter import *

root = Tk()  
root.geometry("400x300") 
v2 = DoubleVar()

def show2():
    
    sel = "Vertical Scale Value = " + str(v2.get()) 
    l2.config(text = sel, font =("Courier", 14))

s2 = Scale( root, variable = v2,
           from_ = 50, to = 1,
           orient = VERTICAL) 

l4 = Label(root, text = "Vertical Scaler")

b2 = Button(root, text ="Display Vertical",
            command = show2,
            bg = "purple", 
            fg = "white")

l2 = Label(root)

s2.pack(anchor = CENTER) 
l4.pack()
b2.pack()
l2.pack()

root.mainloop()