In this article we will see how we can get signal when time of the QDateTimeEdit widget changes. QDateTime is basically a combination of QDate and QTime i.e it has both date and time. And QDateTimeEdit widget is used to show or receive the QDateTime. We can set QDateTime to it with the help of setDateTime method. Setting time will not affect the date of the QDateTimeEdit, it can be set with the help of setTime method.
In order to do this we will use timeChanged method with the QDateTimeEdit object.
Syntax : datetimeedit.timeChanged.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 a QDateTimeEdit widget datetimeedit = QDateTimeEdit(self) # setting geometry datetimeedit.setGeometry(100, 100, 150, 35) # setting date time to it datetimeedit.setDateTime(QDateTime(2020, 10, 10, 11, 30)) # time time = QTime(21, 45) # setting only time datetimeedit.setTime(time) # creating a label label = QLabel("neveropen", self) # setting geometry to the label label.setGeometry(100, 160, 200, 60) # making label multi line label.setWordWrap(True) # getting current time value = datetimeedit.time() # setting text to the label label.setText("Time : " + str(value)) # getting time change signal datetimeedit.timeChanged.connect(lambda: label.setText("Time Change 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 :
