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PyQt5 QCalendarWidget – Killing the timer

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  • Last Updated : 26 Jan, 2022
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In this article we will see how we can kill the timer of the QCalendarWidget. In order to start the timer we use startTimer method, this method calls the timerEvent after the certain interval is passed. It starts a timer and returns a timer identifier, or returns zero if it could not start a timer.

In order to do this we will use killTimer method with the QCalendarWidget object.

Syntax : calendar.killTimer(timer_id)

Argument : It takes integer as argument i.e timer ID

Return : It return None

Implementation Steps : :
1. Create a Calendar class that inherits the QCalendarWidget
2. Inside the Calendar class override the timerEvent and inside the event show the next month of calendar
3. Create a main window class
4. Create a Calendar object inside the main window
5. Set various properties to the calendar
6. Create a push button
7. Add action to the push button, inside the action kill the timer

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
# QCalendarWidget Class
class Calendar(QCalendarWidget):
    # constructor
    def __init__(self, parent = None):
        super(Calendar, self).__init__(parent)
    # overriding the timer event
    # this will show the next month
    def timerEvent(self, event):
        # show the next month
class Window(QMainWindow):
    def __init__(self):
        # setting title
        self.setWindowTitle("Python ")
        # setting geometry
        self.setGeometry(100, 100, 650, 400)
        # calling method
        # showing all the widgets
    # method for components
    def UiComponents(self):
        # creating a QCalendarWidget object
        # as Calendar class inherits QCalendarWidget
        self.calendar = Calendar(self)
        # setting geometry to the calendar
        self.calendar.setGeometry(50, 10, 400, 250)
        # setting cursor
        # starting the calendar timer
        # passing 1000 milliseconds as parameter
        self.timer_id = self.calendar.startTimer(1000)
        # creating a push button
        push = QPushButton("Kill Timer", self)
        # setting geometry to the push button
        push.setGeometry(100, 280, 120, 40)
        # adding action to the push button
    def do_Action(self):
        # killing the timer
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app


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