Tkinter Widget-Scale

Scale widget is used to create a graphical slider object that can be used to select the values from a specific scale.
Syntax-
w = Scale ( main, option, ... )
Parameter-
Main- parent Window.
Option- attribute of scale widget.
Example-
  1. from tkinter import *  
  2. def sel():  
  3.        selection = "Value = " + str(var.get())  
  4.        label.config(text = selection)  
  5. main = Tk()  
  6. var = DoubleVar()  
  7. scale = Scale( main, variable = var )  
  8. scale.pack(anchor=CENTER)  
  9. button = Button(main, text="Get Value", command=sel)  
  10. button.pack(anchor=CENTER)  
  11. label = Label(main)  
  12. label.pack()  
  13. main.mainloop()  
Output-

Option
Description
activebackgroundIt sets background color of widget when widget is under the cursor.
Bg
Normal background color.
Bd
It sets the border width in pixels. Default is 2.
command
It is used to call function or method
cursor
Cursor is used to create a cursor in widget like arrow, circle, dot etc.
font
It is used to change the font of text
fg
It sets the normal foreground (text) color of widgets.
from_
It is used to define the range of scale in int or float.

highlightbackground
It is used to change the highlight background color of widgets.
highlightcolor
It changes the color of widgets on focus.
label
It is used to set the label.
length
It is used to set the length of scale
orient
It is used to set the orient of scale like vertical or horizontal.
relief
Relief is special type of border. The values are SUNKEN, RAISED, GROOVE and RIDGE.
repeatdelay
This option controls how long button 1 has to be held down in the trough before the slider starts moving in that direction repeatedly. Default is repeatdelay=300 and the units are milliseconds.
resolution
Used to set the resolution of scale.
showvalue
Used to set the value on label of scale.
sliderlengthIt is used to define the slider length.
state
It is used to define the state of widgets.
takefocus
It is used to set the focus on a particular value.
tickinterval
It is used to define interval on scale. 
to It is used to define a range of scale.
troughcolor
It is used to set color of the trough.
variable
It is used to define the value of scale.
width
It is used to define the width of widgets.
 
Summary

In this chapter, you learnt what Scale widget is and how to use the property of the widget.
Next » Tkinter Widget-Scrollbar