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Detecting workbook activation
I am a college professor and I am trying to develop a set
of macros that will let me try to prevent potential cheating when students take exams and are allowed to use Excel. Specifically, I would like to prevent them from loading other Excel files (in case they try to open their homework and copy and paste it into their exam workbook) and from opening other applications (like email, instant messenger or anything else where they could write out answers.) I have not been able to figure out how to lock out those actions and I suspect it would take programming at a deeper level (i.e., Windows rather than Excel) so my next thought was simply to lock the workbook if they deactivate it and warn them that once they leave the workbook, they are done with their exam. [I will have passwords to unlock the workbook so it can be graded or if a student has their file deactivated by accident.] I have been able to get this to work detecting when you deactivate one workbook for another using the workbook level Activate and Deactivate events but I haven't been able to detect when you leave Excel for another application and then come back. So, what is the best way to detect if a user has deactivated Excel completely and then reactivated the application? Thanks in advance, Jack |
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