PyQt5 QSpinBox – How to repaint it

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In this article we will see how we can repaint the spin box. With the help of painter events we can paint the spin box however user wants it to be, but some times there is a need to repaint the spin box to ensure the painter event action.

In order to do this we use repaint method with the spin box object.

Syntax : spin_box.repaint()

Argument : It takes no 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 spin box 
        self.spin = QSpinBox(self) 
  
        # setting geometry to spin box 
        self.spin.setGeometry(100, 100, 250, 40) 
  
        # setting range to the spin box 
        self.spin.setRange(1, 999999) 
  
        # setting prefix to spin 
        self.spin.setPrefix("PREFIX ") 
  
        # setting suffix to spin 
        self.spin.setSuffix(" SUFFIX") 
  
        # setting background color to the spin box 
        self.spin.setStyleSheet("QSpinBox"
                                "{"
                                "background : lightgreen;"
                                "}") 
  
        # repaint the spin box 
        self.spin.repaint() 
  
# create pyqt5 app 
App = QApplication(sys.argv) 
  
# create the instance of our Window 
window = Window() 
  
# start the app 
sys.exit(App.exec()) 