PyQt5 QCommandLinkButton – 获取它的菜单

在本文中，我们将了解如何获取 QCommandLinkButton 的菜单。菜单基本上是命令链接按钮的一个额外功能，它允许它有一个下拉菜单，用户可以从中单击菜单项。我们可以借助setMenu方法将菜单设置为命令链接按钮，下面是命令链接按钮的外观

为了做到这一点，我们使用带有命令链接按钮对象的menu方法

Syntax : button.menu()

Argument : It takes no argument

Return : It return QMenu object

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, 500, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
  
    # method for components
    def UiComponents(self):
  
  
        # creating a command link button
        cl_button = QCommandLinkButton("Press", self)
  
        # setting geometry
        cl_button.setGeometry(200, 100, 150, 60)
  
        # QActions
        a = QAction("Next Geeks", self)
        b = QAction("Previous Geeks", self)
  
        # QMenu
        menu = QMenu()
  
        # adding actions to menu
        menu.addAction(a)
        menu.addAction(b)
  
        # setting menu to the button
        cl_button.setMenu(menu)
  
        # creating label
        label = QLabel("GeeksforGeeks", self)
  
        # setting label geometry
        label.setGeometry(50, 200, 200, 40)
  
        # making label multiline
        label.setWordWrap(True)
  
        # getting menu
        value = cl_button.menu()
  
        # setting text to the label
        label.setText("Menu : " + 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 ：