PyQt5 – Set maximum window size

Last Updated : 26 Mar, 2020

When we create a window, by default, it is resizable but with the help of setFixedSize() method we can fix the size of window. But what if we want to resize the window up-to some extent; in order to do this, we have to set the maximum size of the window. We will use setMaximumSize() method.

Syntax : self.setMaximumSize(width, height)

Argument : It takes two argument both integer i.e width and height.

Action performed : It set the maximum size of window.

Code :

# importing the required libraries 
  
from PyQt5.QtCore import * 
from PyQt5.QtGui import * 
from PyQt5.QtWidgets import * 
import sys 
  
  
class Window(QMainWindow): 
    def __init__(self): 
        super().__init__() 
  
  
        # set the title 
        self.setWindowTitle("Python") 
  
        width = 500
        height = 400
        # setting the maximum size 
        self.setMaximumSize(width, height) 
  
  
        # creating a label widget 
        self.label_1 = QLabel("Maximum size", self) 
  
        # moving position 
        self.label_1.move(0, 0) 
  
        # setting up the border 
        self.label_1.setStyleSheet("border :3px solid black;") 
  
        # resizing label 
        self.label_1.resize(120, 80) 
  
        # 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()) 

Output :

Suggest improvement

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PyQt5 – How to stop resizing of window | setFixedSize() method

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PyQt5 – Set maximum window size

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