PyQt5 QCalendarWidget – 检查它是否是活动窗口
在这篇文章中,我们将看到如何检查QCalendarWidget是否是一个活动窗口。一个活动的窗口是一个可见的顶层窗口,它拥有键盘输入的焦点。让它成为一个活动的窗口将会把包含这个日历的顶层小部件设置为活动的窗口。我们可以在activationWindow方法的帮助下使其成为活动窗口。
注意: 这个方法应该在主窗口类之外调用,否则它将总是返回false
为了做到这一点,我们将使用QCalendarWidget对象的isActivateWindow方法。
语法: calendar.isActivateWindow()
参数: 它不需要参数
执行的动作: 它返回bool
下面是实现
# 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, 600, 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(10, 10, 400, 250)
# setting name
self.calendar.setAccessibleName("Geek Calendar")
# making it an active window
self.calendar.activateWindow()
# creating a label
label = QLabel(self)
# setting geometry to the label
label.setGeometry(100, 280, 250, 60)
# making label multi line
label.setWordWrap(True)
# checking active window
value = self.calendar.isActiveWindow()
# setting text to the label
label.setText("Active Window(Checking inside the class) " + str(value))
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# checking if active window
# outside the class
check = window.calendar.isActiveWindow()
print("Active window : " + str(check))
# start the app
sys.exit(App.exec())
输出:
Active window : True