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PyQt5 QDial – Setting Slider’s Value

  • Last Updated : 07 Jul, 2020

In this article we will see how we can set slider’s value of the QDial. User can change the value with the help of mouse although we can change it programmatically as well. The slider forces the value to be within the legal range i.e value should be greater than or equal to the minimum value and it should be less than or equal to the maximum limit. Changing the value also changes the slider position.

In order to do this we use setValue method with the QDial object

Syntax : dial.setValue(n)

Argument : It takes integer as argument

Return : It returns None

Below is the implementation

# importing libraries
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys
class Window(QMainWindow):
    def __init__(self):
        # setting title
        self.setWindowTitle("Python ")
        # setting geometry
        self.setGeometry(100, 100, 500, 400)
        # calling method
        # showing all the widgets
    # method for components
    def UiComponents(self):
        # creating QDial object
        dial = QDial(self)
        # setting geometry to the dial
        dial.setGeometry(100, 100, 100, 100)
        # making notch visible
        # value
        value = 50
        # setting value to the dial slider
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app

Output :

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