PyQt5 QCommandLinkButton – 点击信号
在这篇文章中,我们将看到如何获得QCommandLinkButton的被点击信号。当按钮被激活时,当输入快捷键时,或者当点击或animateClick方法被调用时,这个信号就会被发射出来。值得注意的是,如果你调用setDown、setChecked或toggle方法,这个信号不会被发出。
为了做到这一点,我们使用命令链接按钮对象的clicked方法
语法: button.clicked.connect(method)
参数: 它把方法作为参数
执行的动作: 当点击信号发出时,它调用该方法。
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, 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(250, 100, 200, 50)
# creating label
label = QLabel("GeeksforGeeks", self)
# setting label geometry
label.setGeometry(100, 100, 200, 40)
# adding action to the button
cl_button.clicked.connect(lambda: label.setText("Clicked Signal Emitted"))
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())