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PyQt5 QSpinBox – Getting System Identifier

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In this article we will see how we can get effective window system identifier of the spin box. Effective identifier means the native parent’s window system identifier(ID) of the spin box.

In order to do this we use effectiveWinId method

Syntax : spin_box.effectiveWinId()

Argument : It takes no argument

Return : If the spin box is native, this function returns the native widget ID. Otherwise, the window ID of the first native parent widget, i.e., the top-level widget that contains this spin box, is returned.

Note : This method should be called after the opening of the main window i.e outside the main window class

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):
        # setting title
        self.setWindowTitle("Python ")
        # setting geometry
        self.setGeometry(100, 100, 600, 400)
        # calling method
        # showing all the widgets
        # 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")
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# getting system identifier of spin box
identifier = window.spin.effectiveWinId()
# print the identifier
# start the app

Output :

sip.voidptr object at 0x000002A982EED690

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Last Updated : 19 May, 2020
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