In this article, we will see how we can get the destroyed signal from the QCalendarWidget. Destroyed signal is emitted immediately before the QCalendarWidget is destroyed, after any instances of QPointer have been notified, and cannot be blocked. All the objects’ children are destroyed immediately after this signal is emitted.
In order to do this we will use destroyed method with the QCalendarWidget object.
Syntax : calendar.destroyed.connect(lambda: print(“Destroyed Signal”))
Argument : It takes method as argument
Action Performed : It will print the message whenever activated signal get emitted
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 components
def UiComponents( self ):
# creating a QCalendarWidget object
calendar = QCalendarWidget( self )
# setting geometry to the calendar
calendar.setGeometry( 50 , 50 , 400 , 250 )
# creating a label
label = QLabel( self )
# setting geometry to the label
label.setGeometry( 100 , 280 , 250 , 60 )
# making label multi line
label.setWordWrap( True )
# text
text = "Destroyed Signal Emitted "
# getting the destroyed signal and
# when receives the signal printing the message
calendar.destroyed.connect( lambda : label.setText(text))
# creating push button
push = QPushButton( "Destroy " , self )
# adding action to it
push.clicked.connect( lambda : calendar.deleteLater())
# 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 :