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PytQt5 – Adding action to Check Box

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  • Last Updated : 22 Apr, 2020
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In this article we will see how to set an action to a check box. Adding action to a check box means when the check box is checked it should perform some task. In order to do so we will use stateChanged.connect method, when the state of the checkbox is changed it will connect it to the action.

Syntax : checkbox.stateChanged.connect(method_name)

Argument : It takes method name as argument.

Action performed : It will call the method when check box will be checked

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):
        # setting title
        self.setWindowTitle("Python ")
        # setting geometry
        self.setGeometry(100, 100, 600, 400)
        # calling method
        # showing all the widgets
    # method for widgets
    def UiComponents(self):
        # creating the check-box
        checkbox = QCheckBox('Show Label', self)
        # setting geometry of check box
        checkbox.setGeometry(200, 150, 100, 30)
        # adding action to check box
    # creating action method
    def action(self):
        # creating label
        self.label = QLabel("Check Box is checked", self)
        # moving the label
        self.label.move(200, 200)
        # adjusting the size of label
        # showing the label
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app

Output :

When checkbox will be checked window will look like this

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