PyQt5 QCalendarWidget – 获取它的上下文菜单策略

在本文中，我们将了解如何获取 QCalendarWidget 的上下文菜单策略。上下文菜单策略告诉日历将如何显示上下文菜单，日历有许多可用的策略，如 NoContextMenu、PreventContextMenu 等。默认情况下，日历具有 DefaultContextMenu 作为上下文策略，尽管我们可以在 setContextMenuPolicy 方法的帮助下更改它。

In order to do this we will use contextMenuPolicy method with the QCalendarWidget object.
Syntax : calendar.contextMenuPolicy()
Argument : It takes no argument
Return : It return Content Menu Policy object but when printed it shows the associated value of policy. 
 

下面是实现

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, 650, 400)
 
        # calling method
        self.UiComponents()
 
        # showing all the widgets
        self.show()
 
    # method for components
    def UiComponents(self):
 
        # creating a QCalendarWidget object
        self.calendar = QCalendarWidget(self)
 
        # setting geometry to the calendar
        self.calendar.setGeometry(50, 10, 400, 250)
 
        # setting context menu policy
        self.calendar.setContextMenuPolicy(Qt.NoContextMenu)
 
        # creating a label
        label = QLabel(self)
 
        # setting geometry
        label.setGeometry(50, 280, 420, 120)
 
        # making it multi line
        label.setWordWrap(True)
 
        # getting context menu policy
        value = self.calendar.contextMenuPolicy()
 
        # setting text to the label
        label.setText("Policy Value : " + str(value))
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
 
# start the app
sys.exit(App.exec())

输出 ：