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PyQt5 Combo Box – Background image to down arrow when pressed
  • Last Updated : 04 May, 2020

In this article we will see how we can add background image to the down arrow of the combo box when it gets pressed. Down arrow is the component of combo box which acts as a push-button used to show the list view. Background image of the drop arrow will only appear when it is in pressed state.

In order to do this we have to change the style sheet associated with the combo box, below is the style sheet code

QComboBox::down-arrow:pressed
{
background-image : url(image.png);
}

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 check-able combo box object
        self.combo_box = QComboBox(self)
  
        # making combo box editable
        self.combo_box.setEditable(True)
  
        # setting geometry of combo box
        self.combo_box.setGeometry(200, 150, 200, 80)
  
        # geek list
        geek_list = ["Sayian", "Super Sayian", "Super Sayian 2", "Super Sayian B"]
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # setting style sheet of combo box
        # adding background image to the down arrow when it get pressed
        self.combo_box.setStyleSheet("QComboBox::down-arrow:pressed"
                                     "{"
                                     "background-image : url(logo.png);"
                                     "border : 1px solid black;"
                                     "}")
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
window.show()
  
# start the app
sys.exit(App.exec())

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Output :

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