Visual boy advance how to put cheats

Open VisualBoyAdvance. Double-click the purple VisualBoyAdvance icon in the unzipped folder. This will bring up the VBA. Plz tell me how to use cheats in visual boy advance., Pokemon Emerald Questions and answers, Gameboy Advance. I use VisualBoyAdvance and i'm trying to get gameshark codes working for every code i get from here works.