Need some advice for a hex editor

[MrNobody]

I would like to make a quick little hex editor so I need to display hex
string pairs like a grid- if anyone is familiar with hex editors you'll know
what I mean. I could accomplish this by using a regular TextBox and using
monospace font and just adding a space between each pair so it would look
like "A5 76 FF 3B" etc...

Another approach I guess would be to have a plain white pane and then
manually draw the strings- calculating proper x y coords.

What approach you think is better?

I would need to add functionality where I can both select a string of hex
value or click on one to highlight it (not just one character a pair but the
whole pair) So If I clicked the 5 in A5 the whole pair would be selected,
they should really act as one individual entity since it is one byte
represented in 2 digit hex.

I'll also need to add searching and pattern matching so if I use a TextBox
and throw in space all over it might make it more difficult to do this.


Any suggestions?

[Richard Jalbert]

Re: Need some advice for a hex editor

On Thu, 29 Sep 2005 10:31:05 -0700, "=?Utf-8?B?TXJOb2JvZHk =?="
<MrNobody@discu ssions.microsof t.com> wrote:
[color=blue]
>I would like to make a quick little hex editor so I need to display hex
>string pairs like a grid- if anyone is familiar with hex editors you'll know
>what I mean. I could accomplish this by using a regular TextBox and using
>monospace font and just adding a space between each pair so it would look
>like "A5 76 FF 3B" etc...[/color]

This would be the best I think (at least, that's what I would do) IF
you meant only to read out the values.
[color=blue]
>Another approach I guess would be to have a plain white pane and then
>manually draw the strings- calculating proper x y coords.[/color]

Editing these would be iffy, to say the least.
You would have to store the coordinates with each value so as to
"find" them again.
[color=blue]
>What approach you think is better?[/color]

But if I wanted to edit and store back the modified values, I would
store each byte in a grid as it is read from the file and then read
them from that grid to save them back to the file: no need of any
structure, the grid being the data storage "class".
[color=blue]
>I would need to add functionality where I can both select a string of hex
>value or click on one to highlight it (not just one character a pair but the
>whole pair) So If I clicked the 5 in A5 the whole pair would be selected,
>they should really act as one individual entity since it is one byte
>represented in 2 digit hex.
>
>I'll also need to add searching and pattern matching so if I use a TextBox
>and throw in space all over it might make it more difficult to do this.[/color]
[color=blue]
>Any suggestions?
>
>[/color]

[William Stacey [MVP]]

Re: Need some advice for a hex editor

I would do the text box thing and select the two on a click event or
something.

--
William Stacey [MVP]

"MrNobody" <MrNobody@discu ssions.microsof t.com> wrote in message
news:B0715BCF-2025-41B8-8EEC-A2EDFDD1F587@mi crosoft.com...[color=blue]
>I would like to make a quick little hex editor so I need to display hex
> string pairs like a grid- if anyone is familiar with hex editors you'll
> know
> what I mean. I could accomplish this by using a regular TextBox and using
> monospace font and just adding a space between each pair so it would look
> like "A5 76 FF 3B" etc...
>
> Another approach I guess would be to have a plain white pane and then
> manually draw the strings- calculating proper x y coords.
>
> What approach you think is better?
>
> I would need to add functionality where I can both select a string of hex
> value or click on one to highlight it (not just one character a pair but
> the
> whole pair) So If I clicked the 5 in A5 the whole pair would be selected,
> they should really act as one individual entity since it is one byte
> represented in 2 digit hex.
>
> I'll also need to add searching and pattern matching so if I use a TextBox
> and throw in space all over it might make it more difficult to do this.
>
>
> Any suggestions?
>
>[/color]