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()) |
Output :
