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PyQt5 QCommandLinkButton – Toggled Signal

  • Last Updated : 26 Jun, 2020

In this article we will see how we can get the toggled signal of the QCommandLinkButton. This signal is emitted whenever a checkable command link button changes its state. By default it is not checkable although we can make it checkable any time with the help of setCheckable method. Also when it is checkable its state is unchecked although we can programmatically make its state checked with the help of setChecked method.

In order to do this we use toggled method with the command link button object

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Syntax : button.toggled.connect(method)



Argument : It takes method as argument

Action Performed : It calls the method when the clicked signal is 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, 500, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
  
    # method for components
    def UiComponents(self):
  
  
        # creating a command link button
        cl_button = QCommandLinkButton("Press", self)
  
        # setting geometry
        cl_button.setGeometry(250, 100, 150, 50)
  
        # making it checkable
        cl_button.setCheckable(True)
  
        # toggle signal
        # printing mesage
        cl_button.toggled.connect(lambda: print("Toggled Signal Emitted"))
  
        # making its state checked
        cl_button.setChecked(True)
  
          
  
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

Output :

Toggled Signal Emitted
Toggled Signal Emitted
Toggled Signal Emitted
Toggled Signal Emitted
Toggled Signal Emitted



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