import sys

from PyQt5.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget, QLabel
from PyQt5.QAxContainer import QAxWidget

# from PyQt6.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget, QLabel
# from PyQt6.QAxContainer import QAxWidget

# from PySide2.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget, QLabel
# from PySide2.QtAxContainer import QAxWidget

# from PySide6.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget, QLabel
# from PySide6.QtAxContainer import QAxWidget
                
class MainForm(QMainWindow):
    def __init__(self, parent=None):
        super(MainForm, self).__init__(parent)

        self.widget = QWidget()
        self.layout = QVBoxLayout()
        
        # Microsoft InkEdit Control        
        self.axWidget = QAxWidget("E5CA59F5-57C4-4DD8-9BD6-1DEEEDD27AF4")	
        with open("doc.html", "w") as file:
            file.write(self.axWidget.generateDocumentation())
        
        # OK with PyQt5
        # PyQt6, PySide2, PySide6 raise AttributeError
        self.axWidget.TextRTFChanged.connect(self.get_text)
        #
        
        self.label = QLabel()
                
        self.layout.addWidget(self.axWidget)
        self.layout.addWidget(self.label)
        self.widget.setLayout(self.layout)
        self.setCentralWidget(self.widget)
    
    # parameter text contains RTF -> displaying plain text using ActiveX property            
    def get_text(self, text):
        self.label.setText(self.axWidget.property("Text"))
         
def main():
    app = QApplication(sys.argv)
    form = MainForm()
    form.resize(800, 600)
    form.show()
    app.exec()

if __name__ == '__main__':
    main()