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PyQt5 – How to open window in maximized format?

  • Last Updated : 22 Apr, 2020

In this article we will see how to make a window to open in maximized format, which refer to full screen display window. We can do this by using showMaximized method which belongs to QWidget class.

Syntax : self.showMaximized()

Argument : It takes no argument.

Action performed It will open the window in full screen format.

Code :

# importing libraries
from PyQt5.QtWidgets import * 
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 label
        label = QLabel("Label", self)
        # setting geometry to label
        label.setGeometry(100, 100, 120, 40)
        # adding border to label
        label.setStyleSheet("border : 2px solid black")
        # opening window in maximized size
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app

Output :

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