In this article we will see how we can set background image to the combo box when it is in on state. By default combo box has no image although we can set image to it. Background image will appear only when combo box is in ON state. ON state is when the list view is opened. In order to do this we have to change the style sheet associated with the combo box, below is the style sheet code
QComboBox::on
{
background-image : url(image.png);
border :1px solid black;
}
Below is the implementation
Python3
| # importing librariesfromPyQt5.QtWidgets import*fromPyQt5 importQtCore, QtGuifromPyQt5.QtGui import*fromPyQt5.QtCore import*importsysclassWindow(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    defUiComponents(self):        # creating a check-able combo box object        self.combo_box =QComboBox(self)        # setting geometry of combo box        self.combo_box.setGeometry(200, 150, 200, 80)        # geek list        geek_list =["Sayian", "SuperSayian", "SuperSayian 2", "SuperSayian B"]        # adding list of items to combo box        self.combo_box.addItems(geek_list)        # setting style sheet of the combo box        # adding background image to the combo box it is on        self.combo_box.setStyleSheet("QComboBox::on"                                     "{"                                     "background-image : url(logo.png);"                                     "border : 2pxsolid black;"                                     "}")# create pyqt5 appApp =QApplication(sys.argv)# create the instance of our Windowwindow =Window()window.show()# start the appsys.exit(App.exec()) | 
Output : 

 
                                    







