PyQt5 QScrollBar – 获取光标

在这篇文章中，我们将看到如何获得QScrollBar的光标。QScrollBar是一个控件，它使用户能够访问文档中比用于显示它的小部件更大的部分。滑块是滚动条内可滚动的对象。设置光标是指为滚动条设置特殊的光标，该光标只针对滚动条，可以通过setCursor方法来设置。

为了做到这一点，我们将在滚动条对象中使用cursor方法。

语法： scroll.cursor()

参数： 它不需要参数

返回： 它返回QCursor对象

下面是实现方法

# 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):
  
        scroll = QScrollBar(self)
  
        # setting geometry of the scroll bar
        scroll.setGeometry(100, 50, 30, 200)
  
        # making its background color to green
        scroll.setStyleSheet("background : lightgrey;")
  
        # setting cursor to the scroll bar
        scroll.setCursor(Qt.OpenHandCursor)
  
        # creating a label
        label = QLabel("GeesforGeeks", self)
  
        # setting geometry to the label
        label.setGeometry(200, 100, 300, 80)
  
        # making label multi line
        label.setWordWrap(True)
  
        # getting value changed signal
        scroll.valueChanged.connect(lambda: do_action())
  
        # method called when signal is emitted
        def do_action():
              
            # setting text to the label
            label.setText("Current Value : " + str(scroll.value()))
  
        # getting cursor
        value = scroll.cursor()
  
        # setting text to the label
        label.setText("Cursor : " + 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 :