Skip to content
Related Articles

Related Articles

Improve Article

PyQt5 QScrollBar – Getting Single Step

  • Last Updated : 30 Jul, 2020

In this article we will see how we can get single step property of QScrollBar. QScrollBar is a control that enables the user to access parts of a document that is larger than the widget used to display it. Slider is the scroll-able object inside the bar. This property holds the single step. The smaller of two natural steps that an abstract sliders provide and typically corresponds to the user pressing an arrow key. If the property is modified during an auto repeating key event, the behavior is undefined. Default value of single step is 1 for the scroll bar, it can change with the help of setSingleStep method.

In order to do this we will use singleStep method with the scroll bar object.

Syntax : scroll.singleStep()

Argument : It takes no argument

Return : It returns integer



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):
        super().__init__()
  
        # setting title
        self.setWindowTitle("Python ")
  
        # setting geometry
        self.setGeometry(100, 100, 500, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
  
  
    # method for components
    def UiComponents(self):
  
        scroll = QScrollBar(self)
  
        # setting geometry of the scroll bar
        scroll.setGeometry(100, 50, 30, 200)
  
        # making its background color to green
        scroll.setStyleSheet("background : lightgrey;")
          
        # setting single step
        scroll.setSingleStep(25)
  
        # creating a label
        label = QLabel("GeesforGeeks", self)
  
        # setting geometry to the label
        label.setGeometry(200, 100, 300, 80)
  
        # making label multi line
        label.setWordWrap(True)
  
        # getting value changed signal
        scroll.valueChanged.connect(lambda: do_action())
  
        # method called when signal is emitted
        def do_action():
              
            # setting text to the label
            label.setText("Current Value : " + str(scroll.value()))
  
        # getting orientation property
        value = scroll.singleStep()
  
        # setting text to the label
        label.setText("Single Step : " + str(value))
  
  
  
  
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

Output :

 Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.  

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course. And to begin with your Machine Learning Journey, join the Machine Learning – Basic Level Course




My Personal Notes arrow_drop_up
Recommended Articles
Page :