PyQt5 QScrollBar – Getting Page Step
In this article we will see how we can get page 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. This property holds the page step. The larger of two natural steps that an abstract slider provides and typically corresponds to the user pressing PageUp or PageDown. For scroll bar page step increases the size of the slider up to some point, it can be set with the help of setPageStep method.
In order to do this we will use pageStep method with the scroll bar object. Syntax : scroll.pageStep() Argument : It takes no argument Return : It returns integer
Below is the implementation
Python3
# 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.setPageStep( 50 ) # creating a label label = QLabel("GeeksforGeeks", 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 page step property value = scroll.pageStep() # setting text to the label label.setText("Page 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 :
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