mouse click screenshot capture

im not really sure where this would go... but i would like a tut on how
to create a program that has a global mouse watch.
so pretty much when the mouse clicks someone it takes a screenshot and puts
it where i want it to go.
all in all its pretty much the keylogger to on-screen keyboards.
i got the idea because one of my slaves knows he is keylogged and use's one.
i was able to make a program that takes a screenshot when ever i click a button and save to a spot that i have to specify each time which is annoying but i need one that saves someone secretly and can click anywhere.
any ideas anyone?

Well um good idea but i think you will have to use visual basic go to a script source online which helps people with script's or i would suggest to ask on hackforums they can help alot they helped me.