Exiting a Course & Tracking Results

I have a course that has a number of modules.  The user can view all or just one of them. As long as they have completed at least one they will get a completed score.  At the end of each module there is a results slide that says they have completed it with a button that returns them to the home page where they can select another module (or exit).  Although I have added a button for them to click on to exit the course (which actually takes them to the final results slide (disguised as a info page) with a trigger to submit results, what happens if they just click on the X of the windows screen to exit?  Will this still submit the results to the LMS.  Hope this makes sense!!