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): super().__init__() # setting title self.setWindowTitle("Python ") # setting geometry self.setGeometry(100, 100, 500, 400) # calling method self.UiComponents() # showing all the widgets self.show() # 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 dial.setNotchesVisible(True) # value value = 50 # setting value to the dial slider dial.setValue(value) # create pyqt5 app App = QApplication(sys.argv) # create the instance of our Window window = Window() # start the app sys.exit(App.exec()) |
Output :
