Detecting if an app has an input dialog waiting

Question

I have an app that processes multiple documents (xls, doc, pdf, tiff, etc) and grabs data from them to populate a central db. What the problem i have run into is that the automated process will stop if one of the apps has a dialog open waiting for input, like in any office app, it will ask for your initials on the first run. What i want to be able to do and dont know how to do it, is to detect if any apps have a dialog thats popping up and stopping the process from finishing. I have been using the Process class to grab information about the app but i cannot find anything that will tell me if the app has a dialog up or not. Any help is greatly appreciated. Thanks in advance!