Image Headers

Does anyone know how to read and write to a .jpg image header?

Thanks in advance.

anyone?

you can use PropertyItems
what exactly do you want to do? what image information are you modifying/writing, that would be helpful :)

there is a cool program called hide and encrypt.

I was wondering how I would write my own version for fun.

http://www.topshareware.com/Hide-and...load-12040.htm


It takes an images and hides data in the file.

uh i see
well there is a method where you actually modify color values in a certain way and hold the data that way... it could be doing that.
You need to look up EXIF documentation and figure out the proper EXIF tags... each tag has an ID. You can add new ones using the PropertyItem class....
not so straightforward :)