AutoHotkey Community

[mandiom]

Hey guys. This is my first program in AHK. It isn't really completely done yet, but I would like you to test it.
Thanks to everyone who helped and will help

What it does is it uses a native Windows (DOS) command to "hide" any file in a picture. (It's best if you try zip / rar files). The new image created is recognized as a perfect jpeg from Windows. However, if you try to "Open with" with Winrar / Winzip, you will see the rar / zip file you hid inside.

Please tell me if it works on your pc's.

Thanks in advance!

[mandiom]

No comments or anything?

[Rhys]

I like it - It seems kind of buggy, though - For example:

You hide file1.zip into picture.jpg, file1.zip's contents appear if you open it with winzip.
However, if you attempt to hide another zip file in newimage.jpg (after renaming it), you will still only see file1.zip's contents.

It's still a cool way to use an obscure (?) ability of the copy command
_________________
[Join IRC!]

http://www.codeforcure.org/

[mandiom]

So, I should deduce from what you're saying that it works, right?

This is why I said it isn't finished: I want to make it check for "newimage.jpg", ask the user, delete it, and overwrite it with the new file.

However, what you mentioned about trying to hide another zip file in an image that already serves as the "hiding place" of a file, has to do with the COPY command. I cannot change that because it has nothing to do with the script.

Thanks a lot for you comments Waiting for more

[Rhys]

Well, I had this idea - Your script works (once) with a zip file because WinZip (or whatever) ignores the jpg information in the header of the file and looks for the first zip file header that it finds (PK?). Appending a .txt file, for example, just appends the plaintext to the end of the .jpg, so Notepad wouldn't read it correctly... You also lose the filename of the file you're hiding, because only the raw data is appended to the 'combo' file.

It's been a long time since I played with this stuff, but how about this:
-It seems like the .jpg can survive multiple files being appended after the end of the actual .jpg.
-So, select any file to append (let's say test.txt) or multiple files
-Couldn't we, then, append something like this:

[mandiom]

Haha, yeah, that might be cool but it would also be redundantly complicated. I see no reason to get into binary file structure And I think that one file in the image is more than enough (since you can zip anything you want and then hide it).