In this article we will see how we can know if the mouse/cursor is on the combo box or not, in order to do so we use underMouse method, every time when this function is called it checks the position of the mouse and checks if its position is on the combo box or not.
In order to do this we use underMouse method.
Syntax : combo_box.underMouse()
Argument : It takes no argument
Return : It returns bool
Steps for implementation :
1. Create a combo box
2. Create a label to show the result
3. Create a timer object which calls a function after every 100 milliseconds
4. Inside the timer function check if the combo box is under mouse
5. Show the result through label
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 stylesheet of the combo box self.combo_box.setStyleSheet("border : 1px solid red;") # creating label to show label self.label = QLabel(self) # setting geometry to the label self.label.setGeometry(200, 200, 200, 30) # creating a timer object timer = QTimer(self) # adding action to the timer timer.timeout.connect(self.do_something) # starting timer timer.start(100) # action called by the timer def do_something(self): # checking if the combo box is under mouse under = self.combo_box.underMouse() # setting text to the label self.label.setText("Under Mouse ? : " + str(under)) # create pyqt5 app App = QApplication(sys.argv) # create the instance of our Window window = Window() # start the app sys.exit(App.exec()) |
Output :
