In this article we will see how we can get the window title 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).
Window title property holds the dock widget title (caption), it can be set with the help of setWindowTitle
method. This signal is emitted when the dick widget window’s title has changed.
In order to do this we will use
windowTitleChanged
method with the dock widget object.Syntax : dock.windowTitleChanged.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 ):
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 )
# setting floating property
dock.setFloating( False )
# 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 window title changed signal
# setting text to the label
dock.windowTitleChanged.connect( lambda : label.setText( "Title Changed Signal Emitted" ))
# changing title of dock widget
dock.setWindowTitle( "GeeksforGeeks" )
# create pyqt5 app App = QApplication(sys.argv)
# create the instance of our Window window = Window()
# start the app sys.exit(App. exec ())
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Output :