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PyQt5 QSpinBox – Getting number of rectangles in Children region
  • Last Updated : 19 May, 2020

In this article we will see how we can get the number of rectangles are there in the children region of spin box, children region holds the combined region occupied by the spin box’s children. In order to get the children region we use childrenRegion method.

Note : Combining all the rectangles gives the actual children region

In order to do this we use rectCount method with the children region object of the spin box

Syntax : children_region.rectCount()

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, 600, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
        # method for widgets
    def UiComponents(self):
        # creating spin box
        self.spin = QSpinBox(self)
  
        # setting geometry to spin box
        self.spin.setGeometry(100, 100, 250, 40)
  
        # setting range to the spin box
        self.spin.setRange(0, 999999)
  
        # setting prefix to spin
        self.spin.setPrefix("Prefix ")
  
        # setting suffix to spin
        self.spin.setSuffix(" Suffix")
  
        # getting the children region
        children_region = self.spin.childrenRegion()
  
        # creating a label
        label = QLabel(self)
        label.setWordWrap(True)
  
        # setting geometry to the label
        label.setGeometry(100, 200, 200, 60)
  
  
        # getting number of rectangles
        count = children_region.rectCount()
  
        # setting text to the label
        label.setText("No of rectangles ? : " + str(count))
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
window.spin.setFocus()
# start the app
sys.exit(App.exec())

Output :

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