BlackBerry Mobile App

I would like a BlackBerry App that is able to allow users to join BlackBerry messenger groups directly from the app. Blackberry messenger has a barcode feature that allows 2D barcodes to be associated with a group. I already have an app that displays the posts and barcodes from [login to view URL] bit users cannot join groups direclty from the app. I am looking for an app that allows users to click on the barcode and it joins the group from the app.