I believe the better option might be an 'extension'. Here is link to the QlikView for Developers Help, this is where all the SDK related materials are, this should help get you pointed in the right direction I believe.
You will see all the different development options on that main page, the Building extensions is where I think you likely want to go with this one though just to try to point you in the right direction.
To help users find verified answers, please do not forget to use the "Accept as Solution" button on any post(s) that helped you resolve your problem or question. I now work a compressed schedule, Tuesday, Wednesday and Thursday, so those will be the days I will reply to any follow-up posts.