Catching Pokemon and Gaining EXP

Gen 6 introduced Pokemon gaining EXP after catching a Pokemon. I want to add this, but I have no clue how I'd go about doing this - I've studied the code for catching Pokemon and I've studied the code for gaining EXP. I tried throwing in a "@battle.pbGainEXP" at the end of the Pokemon Catching routine, but it didn't run the EXP Gain. How would I go about making this work?

My team could use somethink like this. When my computer is up ill get working on a script for this