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PyQt5 QDockWidget – Dock Location Changed Signal

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  • Last Updated : 15 Feb, 2022
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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("GeeksforGeeks", 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())

Output :


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