PyQt5 QCalendarWidget 鼠标抓取器属性

在这篇文章中，我们将看到如何获得QCalendarWidget的鼠标抓取器属性。我们可以在mouseGrabber方法的帮助下访问鼠标抓取器属性，这个方法会返回当前正在抓取鼠标输入的日历或其子女。如果这个应用程序中没有任何小部件当前正在抓取鼠标，则返回无。我们可以在grabMouse方法的帮助下抓取鼠标。

为了做到这一点，我们将使用QCalendarWidget对象的mouseGrabber方法。

语法： calendar.mouseGrabber()

参数： 它不需要参数

返回： 它返回QWidget对象

下面是实现的过程

# 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 cursor
        self.calendar.setCursor(Qt.PointingHandCursor)

        # grabbing the keyboard for the calendar
        self.calendar.grabKeyboard()

        # creating label to show the properties
        self.label = QLabel(self)

        # setting geometry to the label
        self.label.setGeometry(100, 280, 250, 60)

        # making label multi line
        self.label.setWordWrap(True)

        # getting mouse grabber property
        value = self.calendar.mouseGrabber()

        # setting text to the label
        self.label.setText("Calendar Mouse grabber : " + str(value))



# create pyqt5 app
App = QApplication(sys.argv)

# create the instance of our Window
window = Window()

# start the app
sys.exit(App.exec())