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PyQt5 – Setting unchecked CheckBox indicator background color on click

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  • Last Updated : 22 Apr, 2020

In this article we will see how to set background color to the pressed indicator when we press it in the unchecked state. Its color should get change when it is pressed and goes back to the default state for checked state.

In order to do this we have to change the style sheet code which is used with the check box object. Below is the style sheet code.

QCheckBox::indicator:unchecked:pressed
{
background-color : green;
}

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('Geek ?', self)
  
        # setting geometry of check box
        checkbox.setGeometry(200, 150, 100, 30)
  
        # adding background color to the indicator
        # when it is pressed from unchecked state
        checkbox.setStyleSheet("QCheckBox::indicator"
                               "{"
                               "width :30px;"
                               "height :30px;"
                               "}"
                               "QCheckBox::indicator:unchecked:pressed"
                               "{"
                               "background-color : green;"
                               "}")
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

Output :


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