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 ):
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( 'Show Label' , self )
# setting geometry of check box
checkbox.setGeometry( 200 , 150 , 100 , 30 )
# adding action to check box
checkbox.stateChanged.connect( self .action)
# 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
self .label.adjustSize()
# showing the label
self .label.show()
# 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 :
When checkbox will be checked window will look like this