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PyQt5 QSpinBox – Getting background role

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  • Last Updated : 01 Oct, 2021

In this article we will see how we can get the background role of the spin box, there are basically two types of roles in spin box one is foreground and the other one is background. Background role defines the brush from the spin box’s palette that is used to render the background. If no explicit background role is set, the spin box inherits its parent widget’s background role. In order to set this, we use setBackgroundRole method.

In order to do this we use backgroundRole method.

Syntax : spin_box.backgroundRole()
Argument : It takes no argument
Return : It returns QPalette.ColorRole object but when printed it shows its value 
 

Below is the implementation  

Python3




# 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 prefix to spin
        self.spin.setPrefix("Prefix ")
 
        # setting suffix to spin
        self.spin.setSuffix(" Suffix")
 
 
        # creating a label
        label = QLabel(self)
 
        # setting geometry to the label
        label.setGeometry(100, 200, 300, 30)
 
        # getting the background role object
        object = self.backgroundRole()
 
        # setting text to the label
        label.setText("Background role object value : " + str(object))
 
 
# 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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