Transfer the size of the font in the operating system to the Python Qt program

PythonQTMarlem

Hi,

in the Windows operating system, people with a visual impairment can increase the font of the operating system to 125% in "Settings" → "Ease of use" → "Display" in "Increase text". My Python Qt program does not make this change.

Annotation:
With Java Swing it can be achieved by implementing a certain Java code. With JavaFX the transfer works without extra Java code.

Question:
What do I have to do for such a change to be applied to my Python Qt program?

PythonQTMarlem

My solution:

def applicationtypesetting(appv, fontsize):
    font = appv.font()
    font.setPointSize(font.pointSize() * fontsize)
    appv.setFont(font)

def main():
    app = QtWidgets.QApplication([])
    win = MainWindow()
    if len(sys.argv) >= 2:
        applicationtypesetting(app, int(sys.argv[1]))
    else:
        applicationtypesetting(app, 1);
    win.showNormal()
    app.exec_()

If someone has a visual impairment they can call the program as follows:
python.exe PQTTexteditor.py 2

Question: Do the Python professionals have a better idea?