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PyQt5 QColorDialog – Current Color Changed Signal

Last Updated : 05 Jan, 2023
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In this article we will see how we can get the current color changed signal of the QColorDialog widget. This signal is emitted whenever the current color changes in the dialog. The current color can be changed by using mouse or keyboard also it can be changed programmatically with the help of setCurrentColor method In order to do this we use currentColorChanged method with the QColorDialog object

Syntax : dialog.currentColorChanged.connect(lambda : print(“Color Changed”)) Argument : It takes method as argument Action Performed : It calls the passed method

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):
        # setting title
        self.setWindowTitle("Python ")
        # setting geometry
        self.setGeometry(100, 100, 500, 400)
        # calling method
        # showing all the widgets
    # method for components
    def UiComponents(self):
        # creating a QColorDialog object
        dialog = QColorDialog(self)
        # getting color changed signal
        # when signal receives print the message
        dialog.currentColorChanged.connect(lambda: print("Color Changed"))
        # setting current color
        # executing the dialog
        # creating label
        label = QLabel("GeeksforGeeks", self)
        # setting geometry to the label
        label.setGeometry(100, 100, 300, 80)
        # making label multi line
        # setting stylesheet of the label
                            "border : 5px solid black;"
        color = Qt.darkBlue
        # setting graphic effect to the label
        graphic = QGraphicsColorizeEffect(self)
        # setting color to the graphic
        # setting graphic to the label
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app

Output :

Color Changed
Color Changed
Color Changed
Color Changed

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