PyQt5 QCalendarWidget 释放抓取的键盘输入
在这篇文章中,我们将看到如何解除抓取,即释放QCalendarWidget的键盘输入。通过抓取键盘,日历不会受到影响,只是它不会收到任何键盘事件。 setFocus像往常一样移动焦点,但是新的焦点部件只有在调用releaseKeyboard后才会收到键盘事件。抓取可以在 grabKeyboard 方法的帮助下完成。
为了做到这一点,我们将使用QCalendarWidget对象的releaseKeyboard方法。
语法: calendar.releaseKeyboard()
参数: 它不需要参数
返回: 它返回无。
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 keyboard input
self.calendar.grabKeyboard()
# creating a push button
push = QPushButton("Release Keyboard", self)
# setting geometry tot he push button
push.setGeometry(100, 280, 150, 40)
# adding action to the push button
push.clicked.connect(self.do_action)
def do_action(self):
# releasing the keyboard
self.calendar.releaseKeyboard()
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())
输出:
最初键盘输入是不工作的,但是当release方法被调用时,它开始工作