When we create a check box, by default there are two state which are either checked i.e True and other is False. But we can add third state to it which is neither True or False with the help of setTristate
method.
Below is how all three states looks like.
Syntax : checkbox.setTristate(True)
Argument : It takes bool as argument.
Action performed : It will add third state to the check box.
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 , 600 , 400 )
# calling method
self .UiComponents()
# showing all the widgets
self .show()
# method for widgets
def UiComponents( self ):
# creating the check-box
checkbox = QCheckBox( 'Check Box' , self )
# setting geometry of check box
checkbox.setGeometry( 200 , 150 , 100 , 30 )
# creating the third state
checkbox.setTristate( True )
# 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 :