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PyQt5 QSpinBox – Clearing the Mask

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  • Last Updated : 17 May, 2020
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In this article we will see how we can clear the mask from the spin box, masks are used to hide part of a UI Image element. We can set mask using setMask method.

In order to do this we use cleanText method.

Syntax : spin_box.clearMask()

Argument : It takes no argument

Action Performed : It mask on the spin box

Implementation steps :
1. Create a main window
2. Create a spin box set its range prefix and suffix
3. Add mask to the spin box
4. Create a push button
5. Add action to the push button
6. Inside the action method call the clearMask method

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")
        # creating a push button
        push = QPushButton("Clear", self)
        # setting geometry to the push button
        push.setGeometry(100, 200, 100, 40)
        # adding action to the push button
        # setting mask on spin box
        region = self.spin.childrenRegion()
    # method called by the push button
    def push_action(self):
        # clearing the mask
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app

Output :

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