Python tkinter scale

import tkinter as tk 
my_w = tk.Tk()
my_w.geometry("200x200") 
my_w.title("Scale")
l1=tk.Label(my_w,text="Scale")
l1.grid(row=1,column=1)

my_scale = tk.Scale(my_w, from_=0, to=100, orient='horizontal')
my_scale.grid(row=2,column=1) 

my_w.mainloop())

my_scale.get()

my_scale.set()

my_scale.set(75)

Copy value from one scale to other by button click

import tkinter as tk
my_w = tk.Tk()
my_w.geometry("500x500") 

def my_upd():
    my_scale2.set(my_scale1.get()) # read and set value 
    
my_scale1 = tk.Scale(my_w, from_=0, to=100, orient='horizontal')
my_scale1.grid(row=1,column=1) 

my_scale2 = tk.Scale(my_w, from_=0, to=100, orient='horizontal')
my_scale2.grid(row=3,column=1) 

b1 = tk.Button(my_w, text='Copy', width=10,command=lambda: my_upd())
b1.grid(row=2,column=1) 

my_w.mainloop()

Direct Copy from one Scale to other without any button click

import tkinter as tk
from tkinter import *
my_w = tk.Tk()
my_w.geometry("300x200") 

def my_upd(value):
    my_scale2.set(my_scale1.get())
        
my_scale1 = tk.Scale(my_w, from_=0, to=100, orient='horizontal',command=my_upd)
my_scale1.grid(row=1,column=1) 

my_scale2 = tk.Scale(my_w, from_=0, to=100, orient='horizontal')
my_scale2.grid(row=3,column=1) 

my_w.mainloop()

Inter connecting Spinbox and Scale widgets

import tkinter as tk
from tkinter import *
my_w = tk.Tk()
my_w.geometry("300x150")  # Size of the window 
my_w.title("www.plus2net.com")  # Adding a title

sv = StringVar() #string variable 
sb = Spinbox(my_w,textvariable=sv, width=15,from_=0,to=100)
sb.grid(row=1,column=1,padx=50,pady=10)

sc = Scale(my_w, from_=0, to=100,orient=HORIZONTAL,variable=sv)
sc.grid(row=2,column=1,padx=50)

my_w.mainloop()  # Keep the window open

Enable disable scale

sv = StringVar() #string variable 
sc = Scale(my_w, from_=0, to=100,orient=HORIZONTAL,
		state='disabled',variable=sv)
sc.grid(row=2,column=1,padx=50)

sc.config(state='normal')

Options

font1=('times',18,'bold') # set font style

sc = Scale(my_w, from_=0, to=100,
variable=sv,orient='horizontal',
activebackground='red',bg='yellow',
bd=5,fg='green',font=font1,cursor='cross')

length	Dimension of the slider, it is x value if orientation is horizontal, otherwise y value of vertical orientation. sc = Scale(my_w, from_=1, to=200,variable=sv, orient='horizontal', length=180)
orient	Orientation of the scale, values can be horizontal or vertical. Default is vertical. See examples above.
relief	Style of the border. Check the button section for more about relief. It can take these values raised , sunken ,flat, ridge, solid & groove sc = Scale(my_w, from_=1, to=200,variable=sv, orient='horizontal',length=180, relief='sunken')
resolution	Step value for the slider movement.
state	normal | active | disabled , options for the state. Check the example above
sliderlength	The length of the slider sc = Scale(my_w, from_=0, to=100,variable=sv, orient='horizontal',sliderlength=10)
showvalue	Set it to 0 if you don't want the slider value to be displayed.
takefocus	Set to to 0 if you don't want it to be on focus through tab cycle along with other widgets.
width	Default value is 15 pixel, Check the width in different orientation. ( see examples above )

Dynamic value for from_ and to

l1=[40,45,55,43,41,59,64,69,70] # data source 
if(min(l1)%10==0):
    my_from=min(l1)
else:
    my_from=(min(l1)//10)*10
if(max(l1)%10 == 0):
    my_to=max(l1)
else:
    my_to=((max(l1)//10)+1)*10
print(my_from,my_to)
sc2=tk.Scale(my_w,from_=my_from,to=my_to,resolution=5,
    length=150,orient='horizontal',font=font1)

Exercise

RGB colour sliders

Dashboard using scale

Selection of Hour Minute and Seconds using Scale

Creating transparent background window

my_w.attributes('-alpha',my_scale.get())

import tkinter as tk # Python 3
my_w = tk.Tk()
my_w.geometry("415x200+410+100")  
my_img = tk.PhotoImage(file = "D:/images/top2-trans.png") 
l1=tk.Label(my_w,image=my_img)
l1.grid(row=1,column=1,padx=100,pady=10)
#my_w.overrideredirect(True)
def my_upd(value):
    my_w.attributes('-alpha',my_scale.get())

my_scale=tk.Scale(my_w,from_=0.0, to=1.0,resolution=0.05,
     command=my_upd,orient='horizontal', length=200)
my_scale.grid(row=2,column=1)

my_scale.set(1.0)
my_w.bind('<Escape>',lambda e:my_w.quit()) 
#my_w.bind('<Button-3>',lambda e:my_w.quit()) # mouse right click
my_w.mainloop()