PyQt5 QSpinBox - Getting MM Height

Last Updated : 28 May, 2020

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

Python3 1==

# 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())