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PyQt5 QComboBox – Setting mouse tracking
  • Last Updated : 10 May, 2020

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

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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)
  
        # 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())

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Output :

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