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PyQt5 – Set unchecked indicator Background color of Radio button when mouse hover
  • Last Updated : 22 Apr, 2020

In this article we will see how we can set background color to an indicator of radio button when it is in unchecked state and mouse hover over it. By default there is no color associated with the indicator.

In order to add background color to the indicator when it is in unchecked state and mouse hover over it we have to change the style sheet code of the radio button, below is the style sheet code.

QRadioButton::indicator:unchecked:hover
{
background-color : lightgreen;
}

Below is the implementation.

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# 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 a radio button
        self.radio_button = QRadioButton(self)
  
        # setting geometry of radio button
        self.radio_button.setGeometry(200, 150, 120, 40)
  
        # setting text to radio button
        self.radio_button.setText("Radio Button")
  
        # changing style sheet code of radio button
        # setting background color to unchecked indicator when mouse hover over it
        self.radio_button.setStyleSheet("QRadioButton::indicator:unchecked:hover"
                                        "{"
                                        "background-color : lightgreen;"
                                        "}")
  
  
# 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 :

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