I was looking through the site and saw that the only bitmap function anyone posted about was the ordinary, simple one therefore i decided to dig up all of the rest so here they are:
yeah I used the simple on in one of my scripts being submitted, and im going to use these advanced ones and one I dont think you mentioned in my new one
maybe you did im not sure, but it has "DTM" in the name I think, it is used to find a part of a bitmap.. for example the word NEO, with a black color could be over a red background, but if that background changes alot you can use dtm to look for just the black 'NEO' text and ignore the background