Brutefoce software

I need a program that can brute force a predfined input field. Eg. by pointing at it with the mouse The program has to brute force in charaters A - Z / 0-9 - allways 7 characters long. The program has to watch / messaure into another field where a check sign is set if the code is correct. The program has to stop when the correct code is reached or proceed to next empty field. Please see attached .pdf file as example. Kode is the input fields where the code is written - the next field tells if the code is correct or not.