PyQt5 – How to hide the title bar of window ?

When we design the GUI (Graphical User Interface) application using PyQt5, there exist the window. A window is a (usually) rectangular portion of the display on a computer monitor that presents its contents (e.g., the contents of a directory, a text file or an image) seemingly independently of the rest of the screen. Windows are one of the elements that comprise a graphical user interface (GUI).

In a window we can see there exist a title bar which comprises the icon and title on the left size and on the right side there exist control button.

In this article we will see how we can hide title bar. In order to do so we will use setWindowFlag() method and pass which belongs to the QWidget class.

Syntax : setWindowFlag(Qt.FramelessWindowHint)

Argument : It takes Window type as argument.



Action performed : It removes the title bar.

Code :

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# importing the required libraries
  
from PyQt5.QtWidgets import * 
from PyQt5.QtGui import * 
from PyQt5.QtCore import Qt
import sys
  
  
class Window(QMainWindow):
    def __init__(self):
        super().__init__()
  
        # this will hide the title bar
        self.setWindowFlag(Qt.FramelessWindowHint)
  
        # set the title
        self.setWindowTitle("no title")
  
        # setting  the geometry of window
        self.setGeometry(100, 100, 400, 300)
  
        # creating a label widget
        # by default label will display at top left corner
        self.label_1 = QLabel('no title bar', self)
  
        # moving position
        self.label_1.move(100, 100)
  
        # setting up border and background color
        self.label_1.setStyleSheet("background-color: lightgreen;
                                    border: 3px solid green")
  
        # show all the widgets
        self.show()
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())

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Output :
pyqt-hide-titlebar

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