PyQt5 QDial – 获取 Notch 可见属性
在本文中,我们将看到如何获得 QDial 的缺口可见属性,默认情况下,QDial 的缺口是禁用的,尽管我们可以随时借助setNotchesVisible
方法使其可见。缺口基本上是围绕表盘绘制的一系列缺口,以指示可用值的范围。
为了做到这一点,我们使用带有 QDial 对象的notchesVisible
方法
Syntax : dial.notchesVisible(True)
Argument : It takes no argument
Return : It returns 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, 500, 400)
# calling method
self.UiComponents()
# showing all the widgets
self.show()
# method for components
def UiComponents(self):
# creating QDial object
dial = QDial(self)
# setting geometry to the dial
dial.setGeometry(100, 100, 100, 100)
# making notch visible
dial.setNotchesVisible(True)
# creating a label
label = QLabel("GeeksforGeeks", self)
# setting geometry to the label
label.setGeometry(220, 125, 200, 60)
# making label multiline
label.setWordWrap(True)
# getting notch visible property
value = dial.notchesVisible()
# setting text to the label
label.setText("Notch Visible : " + 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 :