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!HexEdit
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!Help
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1990-08-12
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Help for !HexEdit
=================
This application allows you to view and edit any
type of file byte by byte (by entering hexadecimal
values or typing characters)
The operations available are as follows:
Once !HexEdit is running:
=========================
Double-click DATA files to load them Drag any file to
iconbar icon to load it
Click on any character or hexadecimal digit in the
window to select it for editing-- Both the hexadecimal
value of the byte and it's corresponding ASCII
character equivalent are highlighted.
Now, any character you type will overwrite the
character that is currently selected, and the
selection will move on to the next character.
To enter hexadecimal digits instead of typing
characters, press 'Insert'. The computer will beep to
let you know the entry mode has changed. Now, type any
hexadecimal digit-- The selected byte will be modified
as follows: The righthand digit will move into the
left, and the 'space' left on the righthand side will
then be replaced by the digit you type.
Press 'Insert' again to toggle back to character mode.
From the main menu:
===================
Use File ë to get info on the file Use Save ë TO SAVE
the modified file
Use GOTO ë to go to a specific address
(format: xxxx in HEX)
or format: +xxxx (hex) to jump forward xxxx bytes
-xxxx (hex to jump backwards xxxx bytes
Use GOTO ë 9999999 (large number) to go to end of file.
Use Undo to undo the last change you made (undoes one
byte at a time) {Please note that if you undo ALL the
changed bytes, then HexEdit is clever enough to
realise that the file has not in effect been changed,
and so will not ask if you wish to save etc. when you
close the window.}
Type a search string into the 'Search' option, and
HexEdit will search from the currently selected byte
for that string. If a search is taking a while,
HexEdit will display the Hourglass pointer, along with
a percentage that represents how far it has searched
between the selected byte and the end of the file
(i.e. gives some indication of the maximum time left
to go). If HexEdit reaches the end of the file without
finding any occurrences of the string, it will beep.
Shortcuts:
==========
Movement:
You can select any byte by clicking on it's
hexadecimal value, or on it's ASCII equivalent.
You can move the selection with the keyboard cursor
keys.
If you use shift in conjunction with è and ï, you
will move up/down the data by 16 lines instead of one.
This is duplicated by the page up/down keys.
If you hold down CTRL with è or ï, you will be moved
to the start or end of the file.
Pressing RETURN or TAB will move you to the next
byte.
Pressing delete or backspace will UNDO the last byte
you changed, up to a maximum of 100 bytes.
Pressing 'COPY' will set a mark at the presently
selected byte. This makes it easy to move back to this
byte later.
Pressing 'HOME' will move you to the next mark
(cycling through the marks, so when the last mark is
reached, you will move to the first one)
Pressing f10 will swap the case (A ë a, aáë A, etc)
of the character represented by the currently selected
byte.