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
Python3
# importing librariesfrom PyQt5.QtWidgets import *from PyQt5 import QtCore, QtGuifrom PyQt5.QtGui import *from PyQt5.QtCore import *import sysclass 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 dock widget dock = QDockWidget("neveropen", self) # push button push = QPushButton("Press", self) # setting widget to the dock dock.setWidget(push) # creating a label label = QLabel("neveropen", self) # setting geometry to the label label.setGeometry(100, 200, 300, 80) # making label multi line label.setWordWrap(True) # 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 dock.setFeatures(QDockWidget.DockWidgetClosable) # setting geometry tot he dock widget dock.setGeometry(100, 0, 200, 30)# create pyqt5 appApp = QApplication(sys.argv)# create the instance of our Windowwindow = Window()# start the appsys.exit(App.exec()) |
Output : 
