from https://devblogs.microsoft.com/math-in-office/richeditd2d-window-controls/ https://devblogs.microsoft.com/math-in-office/richeditd2d-wi... "The Windows 11

from https://devblogs.microsoft.com/math-in-office/richeditd2d-window-controls/ https://devblogs.microsoft.com/math-in-office/richeditd2d-wi... "The Windows 11 Notepad uses the RichEditD2DPT window class with a recent Microsoft 365 RichEdit."