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PyQt5 QSpinBox – How to repaint it

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  • Last Updated : 28 May, 2020
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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())


Output :


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