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PyQt5 – Accessing help text of the combo box
  • Last Updated : 22 Apr, 2020

In this article we will see how we can access help text to the combo box. Help text is basically used to tell he programmer about the emergency information like reference links etc, programmer set help text to the combo box so that when some other programmer get difficulty in understanding the combo box, he/she can take help from the help text.

In order to set the help text to the combo box we use setWhatsThis method and to access the help text we use whatsThis method.

Syntax : combo_box.whatsThis()

Argument : It takes no argument

Return : It returns string



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 combo box widget
        self.combo_box = QComboBox(self)
  
        # setting geometry of combo box
        self.combo_box.setGeometry(200, 150, 150, 30)
  
        # geek list
        geek_list = ["Sayian", "Super Sayian"]
  
        # making it editable
        self.combo_box.setEditable(True)
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # help text
        help = "Sayian Help text"
  
        # setting help text to the combo box
        self.combo_box.setWhatsThis(help)
  
        # getting the help text
        get_help = self.combo_box.whatsThis()
          
        # creating label to show the help text
        label = QLabel("Help text :" + get_help, self)
  
        # setting geometry of the label
        label.setGeometry(200, 100, 200, 30)
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

Output :

 Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.  

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course. And to begin with your Machine Learning Journey, join the Machine Learning – Basic Level Course

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