Playing Video

Hi I am new to using arduino and processing but I was wonder if it is possible to use a sensor (eg.button sensor) to trigger a video to play? we are showing visuals through rear projection and using the button as an interactive interface. Any guidance on how to achieve this would be great, thanks.

CathyODonovan:
Hi I am new to using arduino and processing but I was wonder if it is possible to use a sensor (eg.button sensor) to trigger a video to play? we are showing visuals through rear projection and using the button as an interactive interface. Any guidance on how to achieve this would be great, thanks.

Perhaps you could explain how using an Arduino would be any different from what you are doing right now.