In DD, the general procedures are similar, but iZakaroN created an editor (or from Kiya's site, with description) to make changing stats, skills or experience points much easier. I never bothered trying to hex edit gold in DD, since there is an exploit (fixed in BD) that can give you unlimited amounts of any stackable item (gold, potions, etc); see your other topic about that.

After the editor was done, Destruct figured out a few more things (Some more hex offsets...), which would have to be edited manually.