PyQt5 QDockWidget – Dock Location Changed Signal

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In this article we will see how we can get the dock location changed signal of the QDockWidget. QDockWidget provides the concept of dock widgets, also know 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).
This signal is emitted when the dock widget is moved to another dock area, or is moved to a different location in its current dock area. This happens when the dock widget is moved programmatically or is dragged to a new location by the user.

In order to do this we will use dockLocationChanged method with the dock widget object.

Syntax : dock.dockLocationChanged.connect(method)

Argument : It takes method as argument

Return : It returns None

Below is the implementation

Python3

# 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 dock widget 
        dock = QDockWidget(self) 
  
        # setting title to the dock widget 
        dock.setWindowTitle("GfG Dock") 
  
  
        # push button 
        push = QPushButton("Press", self) 
  
        dock.setAllowedAreas(Qt.NoDockWidgetArea) 
  
        # setting widget to the dock 
        dock.setWidget(push) 
  
        # creating a label 
        label = QLabel("zambiatek", self) 
  
        # setting geometry to the label 
        label.setGeometry(100, 200, 300, 80) 
  
        # making label multi line 
        label.setWordWrap(True) 
  
        # setting geometry tot he dock widget 
        dock.setGeometry(100, 0, 200, 30) 
  
        # getting dock location changed signal 
        # setting text to the label 
        dock.dockLocationChanged.connect(lambda: label.setText("Dock Location Changed Signal Emitted")) 
  
  
  
# create pyqt5 app 
App = QApplication(sys.argv) 
  
# create the instance of our Window 
window = Window() 
  
# start the app 
sys.exit(App.exec()) 