by Erik Stites (10 Submissions)
Category: Files/File Controls/Input/Output
Compatability: Visual Basic 3.0
Difficulty: Intermediate
Date Added: Wed 3rd February 2021
Rating: 
(6 Votes)
A complete Hex Editor created using no API's or third party controls.
WARNING- I take no responsibity for any lost information or files caused by using this source. At this time the code does not include a built in Backup function [add one if you would like] so if you accidentally damage files while using this program, well, I hope you have a backup already. Remember, It will never automatically save over your files unless someone changes my code themselves.
Now that the disclaimer is out of the way... The way I have created this program, it only allows the user to save the 'current page' that they are working on. A page consists of 256 bytes on the screen at a time. I did this to save on memory usage as only a quarter of a kilobyte is loaded at a time. Because of this, and the fact that it is Event-Driven [uses no timer controls], it uses very little resources. This source includes a simple ASCII table built in [ok, with this it uses a half KB for data] that you can simply click and view even with a file open. To view the current file information, simply right click on the hex data list.
This code shows how to: use binary file I/O, listbox manipulation, one and two dimentional arrays, Hex, inputbox, msgbox, ASCII and Chr functions
This code is also very fast, even on my Pentium 150MHz laptop.
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