Calculator in Access

I have a calculator (+-*/) in an Access project. It currently works fine, except that it only accepts mouse input. I would like it to use keyboard input, also. If you have something like this, even if it has some memory functions, that is fine. A scientific calculator would not be suitable. I can provide an Access database which only has this form, with all other objects deleted (for a small file size), to the person who is interested in this. The coder would have to certify that I can use the code in a project that will be sold to the general public without any ownership belonging to the coder and no royalty or other payments due other than the contract price due under this site's rules. This may be standard practice, but I am new at this and want to make sure that this is clear for all parties. See below. Thank you. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Exclusive and complete copyrights to all work purchased. (No GPL, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site). ## Platform Windows Office 2000