PyQt5 QSpinBox – Getting Pixel Ratio Scale
In this article we will see how we can get the pixel ratio scale for the spin box. The device pixel ratio is the ratio between physical pixels and logical pixels of the spin box. Pixel ratio scale is the type of variable measurement scale which is quantitative in nature. Ratio scale allows any researcher to compare the intervals or differences.
In order to do this we use devicePixelRatioFScale method
Syntax : spin_box.devicePixelRatioFScale()
Argument : It takes no argument
Return : It returns float
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 pixel ratio scale pixel_ratio_scale = self .spin.devicePixelRatioFScale() # creating label label = QLabel( self ) # setting geometry to the label label.setGeometry( 100 , 200 , 200 , 70 ) # making it multi line label label.setWordWrap( True ) # setting text to the label label.setText( "Pixel Ratio Scale : " + str (pixel_ratio_scale)) # 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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