A family of Microsoft word processing software products for creating web, email, and print documents.
Dear Charles,
Thanks for your updates.
Yes, you are right. An open dialog will prevent you from taking actions in Word. I'm afraid that there may be no out-of-the-box way helping you find the open dialog in Word. The easiest way to work around the issue may be to kill the process of Word in Task Manager and then relaunch Word again to move forward.
Another way may be to use the development way Windows API FindWindowA function mentioned in FindWindowA function (winuser.h) - Win32 apps | Microsoft Learn to find the open diaglog. As the second way may need some code, I suggest you post a new thread on our specific support channel Windows Forms - Microsoft Q&A for further help to see if the members there will provide some code meeting your requirement.
Here is a thread from that forum for your reference.
Thanks for your understanding and have a nice day!
Sincerely
Cliff | Microsoft Community Moderator