PyQt5 QComboBox – Setting mouse tracking

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In this article we will see how we can set mouse tracking to the combo box, combo box receive signal about the mouse when any button is pressed but after mouse tracking it will receive all the signals about the mouse even if any button is not pressed. By default this property is False.

In order to turn on the mouse tracking we use setMouseTracking method

Syntax : combo_box.setMouseTracking(bool)

Argument : It takes bool as argument

Return : It returns None

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 a check-able combo box object 
        self.combo_box = QComboBox(self) 
  
        # setting geometry of combo box 
        self.combo_box.setGeometry(200, 150, 100, 30) 
  
        # 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 mouse tracking 
        self.combo_box.setMouseTracking(True) 
  
        # setting stylesheet of the combo box 
        self.combo_box.setStyleSheet("border : 1px solid red;") 
  
          
# create pyqt5 app 
App = QApplication(sys.argv) 
  
# create the instance of our Window 
window = Window() 
  
# start the app 
sys.exit(App.exec()) 