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PyQt5 QSpinBox – Matching font with the System Font

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In this article we will see how we can match the font of the spin box with the system font, Matching of font means it is similar to that of the system font. We can get the QFont object of spin box with the help of font method. Note : Make text italic or bold doesn’t mean the font has changed, by default system has Arial font. If we set different font from Arial then it will return False output as they don’t match.
In order to do this we use exactMatch method with the QFont object of the spin box Syntax : font.exactMatch() Argument : It takes no argument Return : It returns bool
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(0, 999999)
  
        # setting prefix to spin
        self.spin.setPrefix("Prefix ")
  
        # setting suffix to spin
        self.spin.setSuffix(" Suffix")
  
        # getting font of the spin box
        font = QFont('Arial')
  
        # making font bold
        font.setBold(True)
  
        # setting this font to the spin box
        self.spin.setFont(font)
  
        # checking if font matches with the system font
        match = font.exactMatch()
  
        # creating a label
        label = QLabel(self)
  
        # setting geometry to the label
        label.setGeometry(100, 200, 300, 50)
  
        # setting text to the label
        label.setText("Matches System Font : " + str(match))
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

                    
Output :

Last Updated : 22 May, 2020
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