In this article we will see how we can get the object name changed signal from the QCalendarWidget. Object name changed signal is emitted after the object’s name has been changed. The new object name is passed as objectName.
Note : This is a private signal. It can be used in signal connections but cannot be emitted by the user.
In order to do this we will use objectNameChanged method with the QCalendarWidget object.
Syntax : calendar.objectNameChanged.connect(lambda: print(“Object name change signal Signal”))
Argument : It takes method as argument
Action Performed : It will print the message whenever activated signal get emitted
Below is the implementation
Python3
# importing librariesfrom PyQt5.QtWidgets import *from PyQt5 import QtCore, QtGuifrom PyQt5.QtGui import *from PyQt5.QtCore import *import sysclass 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 self.calendar = QCalendarWidget(self) # setting geometry to the calendar self.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 = "Object name changed signal emitted" # getting the object name changed signal self.calendar.objectNameChanged.connect(lambda: label.setText(text)) # changing object name self.calendar.setObjectName("New Name")# create pyqt5 appApp = QApplication(sys.argv)# create the instance of our Windowwindow = Window()# start the appsys.exit(App.exec()) |
Output :
