In this article we will see how we can set options of the QColorDialog widget. There are basically three dialog options available for the QColorDialog widget, below are the options
1. ShowAlphaChannel : Allow the user to select the alpha component of a color
2. NoButtons : Don’t display OK and Cancel buttons
3. DontUseNativeDialog : Use Qt’s standard color dialog instead of the operating system native color dialog
In order to do this we use setOption
method with the QColorDialog object
Syntax : dialog.setOption(QColorDialog.ShowAlphaChannel)
Argument : It takes option object as argument
Return : It returns None
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 ):
# creating a QColorDialog object
dialog = QColorDialog( self )
# setting option
dialog.setOption(QColorDialog.ShowAlphaChannel)
# executing the dialog
dialog.exec_()
# creating label to display the color
label = QLabel( "GfG" , self )
# setting geometry to the label
label.setGeometry( 100 , 100 , 200 , 60 )
# making label multi line
label.setWordWrap( True )
# setting stylesheet of the label
label.setStyleSheet( "QLabel"
"{"
"border : 5px solid black;"
"}" )
color = Qt.green
# setting graphic effect to the label
graphic = QGraphicsColorizeEffect( self )
# setting color to the graphic
graphic.setColor(color)
# setting graphic to the label
label.setGraphicsEffect(graphic)
# create pyqt5 app App = QApplication(sys.argv)
# create the instance of our Window window = Window()
# start the app sys.exit(App. exec ())
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Output :