In this article we will see how we can get 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 help of setMaximum
method. With the upper bound we can make sure the number above the upper bound can be assigned. Setting upper bound will not effect the movement of the Qdial it will still able to move 360 degree.
In order to do this we use maximum
method with the QDial object
Syntax : dial.maximum()
Argument : It takes no argument
Return : It returns integer
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( "GeeksforGeeks" , 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())))
# getting maximum value
value = dial.maximum()
# setting text to the label
label.setText( "Maximum Value : " + str (value))
# create pyqt5 app App = QApplication(sys.argv)
# create the instance of our Window window = Window()
# start the app sys.exit(App. exec ())
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Output :