Hello there,
            I was just wodering if its possible in visualBasic.net to actually undo the addition of a string to a graphics or undoing the last drawing I last performed.

Thanks,
Dinesh

What do you mean by "undo"? Presumably, if you still have the original graphic you could just start over clean. But because you asked if you can undo I assume that you don't have that option. Once an image is saved you can't really "undo" anything.

Peter
------------------------------------------------------
Work smarter, not harder.

I am unfamiliar with GDI+, but in general, there are two approaches that I can think of:

(I am assuming you want to have only one undo. I you want multiples, then you should do similar things, but use a collection/array to keep each change.
1) Keep a copy of the image before the last change (As was suggested by a previous post). This is expesive in RAM, expecially if you want to do multiple undos.
2) Determine a bounding box that is smaller than the entire image, but contains all of the pixels of the change. Keep this section of the image as was done in #1, with a definition of where is is located on the whole image.
3) If you can do layers (again I don't know GDI+ yet), make each change on it's own layer. You can even give the user access to each layer's transparency, to give them more control.


John R Lick
[email protected]