In this article we will see how we can set the upper bound of QDial. Upper bound means the highest value QDial can handle by default the maximum value is 99 although we can change it any time. With the upper bound we can make sure the number above the upper bound can be assigned. Setting upper bound will not affect the movement of the Qdial it will still able to move 360 degree.
In order to do this we use setMaximum method with the QDial object
Syntax : dial.setMaximum(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) # setting maximum value to the dial dial.setMaximum(200) # making notch visible dial.setNotchesVisible(True) # creating a label label = QLabel("neveropen", self) # setting geometry to the label label.setGeometry(220, 125, 200, 60) # making label multiline label.setWordWrap(True) # adding action to the dial dial.valueChanged.connect(lambda: label.setText("Value = " + str(dial.value()))) # create pyqt5 app App = QApplication(sys.argv) # create the instance of our Window window = Window() # start the app sys.exit(App.exec()) |
Output :
