如何在PyQt5中获取当前关注的小部件objectName?这是我的代码。在我的代码中,我获得了所有小部件的对象名称。而且我也想知道重点突出的小部件objectName。
import sys
from PyQt5.QtWidgets import *
class Check(QWidget):
def __init__(self):
super().__init__()
self.setWindowTitle("Check Window")
self.textbox1 = QLineEdit(self)
self.textbox1.setGeometry(100, 100, 300, 30)
self.textbox2 = QLineEdit(self)
self.textbox2.setGeometry(100, 150, 300, 30)
self.textbox3 = QLineEdit(self)
self.textbox3.setGeometry(100, 200, 300, 30)
self.lbox1 = QListWidget()
self.lbox2 = QListWidget(self)
self.lbox2.setGeometry(100,250,300,500)
self.textbox1.setObjectName("textbox1")
self.textbox2.setObjectName("textbox2")
self.textbox3.setObjectName("textbox3")
self.updateallwidgets()
self.focuwidget()
def updateallwidgets(self):
QWidget.allwidgets = QApplication.allWidgets()
for i in QWidget.allwidgets:
j = i.objectName()
def focuwidget(self):
fwidget = QApplication.focusWidget()
print("focus widget name ",fwidget)
def main():
myapp = QApplication(sys.argv)
mywin = Check()
mywin.show()
sys.exit(myapp.exec_())
if __name__ == "__main__":
main()
答案 0 :(得分:2)
您试图在创建始终为None的窗口之前获取具有焦点的小部件,解决方案是通过focusChanged信号检测焦点何时发生变化:
class Check(QWidget):
def __init__(self):
super().__init__()
self.setWindowTitle("Check Window")
self.textbox1 = QLineEdit(self)
self.textbox1.setGeometry(100, 100, 300, 30)
self.textbox2 = QLineEdit(self)
self.textbox2.setGeometry(100, 150, 300, 30)
self.textbox3 = QLineEdit(self)
self.textbox3.setGeometry(100, 200, 300, 30)
self.lbox1 = QListWidget()
self.lbox2 = QListWidget(self)
self.lbox2.setGeometry(100, 250, 300, 500)
self.textbox1.setObjectName("textbox1")
self.textbox2.setObjectName("textbox2")
self.textbox3.setObjectName("textbox3")
QApplication.instance().focusChanged.connect(self.on_focusChanged)
def on_focusChanged(self):
fwidget = QApplication.focusWidget()
if fwidget is not None:
print("focus widget name ", fwidget.objectName())