Hex Converter

Posted on 1999-01-25
Last Modified: 2010-05-18
I would like to know, if someone could help me with, converting a say, exe-file into a hex number file. Sort of like Ultra Edit.
Question by:inkognito
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LVL 13

Expert Comment

ID: 1363217
Take a look at
You find all the examples you need
Hex to bin,
bin to hex.
dec to bin


Expert Comment

ID: 1363218
Hello Inkognito,

First run thrue your text file, and get all the chars, then send them thrue this

function Dec2Hex(Dec: byte): string;
var Hi: byte;
    Low: byte;
     Hi:=Dec div 16;
     Low:=Dec mod 16;
     case Low of
          10: result:=result+'A';
          11: result:=result+'B';
          12: result:=result+'C';
          13: result:=result+'D';
          14: result:=result+'E';
          15: result:=result+'F';
     else result:=result+inttostr(Low);

I hope this helps, otherwise, giv me a comment.


Author Comment

ID: 1363219
The link you posted, seems to be very good, for future looking, though at writing time, I haven't had the time to look through the whole page, but I'll just hope for the best. Cuz the problems, is more or less, (problably due to my insufficent detailed question), that I need a fast converter from ASCII(string, dec) to Hex. I've used a BlockRead function, that could barley convert 1 Kb large Txt-filez, but it went so slow, that the program crashed, so I neede a simple / or not, version that won't hang it self, when filez up to a meg are read...
     I hope you understand my prolem, somehow better so that you can help me...?!
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LVL 13

Expert Comment

ID: 1363220
Here is a very fast conversion function, is that what you need?

Function Byte2Hex(Number: Byte) : String;
    Ch1 := Number SHR 4;
    Ch2 := Number - (Ch1 SHL 4);    Byte2Hex := Hexa[Ch1]+Hexa[Ch2];


Author Comment

ID: 1363221
Could you please implement (is it spelled this way?), this function in a little for ... loop, which would go through the whole file. Not that I'm totally bonkers, just don't have the time to try and wait for a result taht could work without too much trouble. And since you're obviously not a new-beginner which I'm Please Help Me!!!!!!!(Am I deperate?)
LVL 13

Expert Comment

ID: 1363222
Sounds like a assignment to me. But OK

Download hexview from

Last answer...


Expert Comment

ID: 1363223
You can find one ...\Borland\Delphi #\Demos\RESXPLOR

look at hexdump.pas


Author Comment

ID: 1363224
Well I just have to start by thanking Mirkwood, for the suggestions on my problem, however, I visited the site,, which had a perfect
HexViewer for my purposes, but it didn't have a complete code. Cuz it requested a THexDump component that I didn't find in the Zip-archive, so I'm getting desperate! Please someone out there...

Accepted Solution

rickpet earned 200 total points
ID: 1363225
I guess you didn't read my comment...Thexdump can be found at

You can find one ...\Borland\Delphi #\Demos\RESXPLOR


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