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- Newsgroups: alt.msdos.programmer
- Path: sparky!uunet!mnemosyne.cs.du.edu!nyx!swalter
- From: swalter@nyx.cs.du.edu (DreamWeaver)
- Subject: Re: alt 255
- Message-ID: <1992Aug26.053641.10367@mnemosyne.cs.du.edu>
- Sender: usenet@mnemosyne.cs.du.edu (netnews admin account)
- Organization: University of Denver, Dept. of Math & Comp. Sci.
- References: <92238.135238MCHAMINA@ESTEC.BITNET>
- Date: Wed, 26 Aug 92 05:36:41 GMT
- Lines: 39
-
- CHAMINADE, MARC MICHEL LOUIS <MCHAMINA@ESTEC.BITNET> writes:
-
- >If you want to prevent people to delete your files on your hd with the f
- nction
- >del xxx.x rather than Attrib you'd better rename the files from
- >xxx.x to
- > xxx.x The space in front of the name is obtained with the alt-255 combi
- ation.
- >You can not call the file or do anything to it by using the space key.
-
- >Some may find it usefull. I do !
-
- Nifty idea ... I've got an extension to that:
-
- Since DOS see the ALT-255 combo as a valid character for filename, you
- aren't limited to just one of them. You can create a filename that is
- nothing but ALT-255's. -OR-, you can put an ALT-255 at the _end_ of the
- name:
-
- xxx_.x
-
- where the '_' is the ALT-255 combo. That way, the file doesn't seem any
- different when you do a directory of it ... yet trying to access just
- xxx.x doesn't work (file not found).
-
- Also, ALT-255 works for creating sub-directories. It will effectively
- make the directory invisible unless something is entered into the
- directory table after it.
-
- (for those curious, ALT-255 means hold down the alt key and type 2 5 5 on
- the _numeric_keypad_. You won't get this to work if you use the keys
- across the top of the keyboard, it _must_ be the keypad. For that matter,
- that's how you can create filenames or directories with IBM graphics
- characters: simply substitute the ALT-??? combo of the character for what
- you want ... the combo being the ASCII value of the graphic char you want
- to use).
-
- -Scotty
-
-