I would like to know how to design a program(a) to run outside another program(b), that will click a button that comes up while using the program(b). Reason being, is the program that I am using constantly asks me to hit next after scanning a product, so I want to be able to change that have it hit next at soon as there is something in the text box of program(b). But, I don't have access to the code for program(b).
If anyone could help, I would be very appreciative.