I wrote small application, hex viewer (http://www.jsoftware.com/jwiki/AndrewNikitin/HexView)
It maps a file to a noun and then uses grid in virtual mode to display contents of this noun. It works pretty good for large files. I tried several hundereds of megabytes, but I suspect that for files over 2G I would need 64 bit J. There is one issue, however. When file is large and I use combination of keys Ctrl+down to go to the end of file, grid class fails with "out of memory" message. This only happens with Ctrl+down. I still can go to the end of large file by draggng scrollbar all the way down. I do not process Ctrl+down, so, I suspect error happens somewhere inside grid class. What is special about Ctrl+down so it needs entire data to be loaded? _________________________________________________________________ Boo! Scare away worms, viruses and so much more! Try Windows Live OneCare! http://onecare.live.com/standard/en-us/purchase/trial.aspx?s_cid=wl_hotmailnews---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
