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PyQt5 QDockWidget – Getting Feature change signal

Last Updated : 06 Apr, 2023
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In this article we will see how we can get feature change signal of the QDockWidget. QDockWidget provides the concept of dock widgets, also known as tool palettes or utility windows. Dock windows are secondary windows placed in the dock widget area around the central widget in a QMainWindow(original window). There are many features already enabled for the dock, also there are feature like movable, closable, floatable, horizontal title bar or there is a option of setting all features or setting no features, these can be set with the help of setFeatures method. Feature change signal is emitted when the feature of the dock is changed.

In order to do this we will use featuresChanged method with the dock widget object. Syntax : dock.featuresChanged.connect(method) Argument : It takes method 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):
        # 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 dock widget
        dock = QDockWidget("GeeksforGeeks", self)
        # push button
        push = QPushButton("Press", self)
        # setting widget to the dock
        # creating a label
        label = QLabel("GeeksforGeeks", self)
        # setting geometry to the label
        label.setGeometry(100, 200, 300, 80)
        # making label multi line
        # getting feature changed signal
        # setting text to the label when feature is changed
        dock.featuresChanged.connect(lambda: label.setText("Feature Changed"))
        # setting feature to the dock
        # setting geometry tot he dock widget
        dock.setGeometry(100, 0, 200, 30)
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app

Output :

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