PyQt5 QSpinBox – Getting MM Height

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In this article we will see how we can get the MM Height of the spin box. MM Height is basically the height of the paint device in millimeters. Due to platform limitations it may not be possible to use this function to determine the actual physical size of a spin box on the screen.

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

Syntax : spin_box.heightMM()

Argument : It takes no argument

Return : It returns integer

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") 
  
        # creating a label 
        label = QLabel(self) 
  
        # making the label multi line 
        label.setWordWrap(True) 
  
        # setting geometry to the label 
        label.setGeometry(100, 200, 200, 60) 
  
        # getting MM Height of spin box 
        value = self.spin.heightMM() 
  
        # setting text to the label 
        label.setText("MM Height =  " + str(value)) 
  
  
# create pyqt5 app 
App = QApplication(sys.argv) 
  
# create the instance of our Window 
window = Window() 
  
# start the app 
sys.exit(App.exec()) 