Programming Hookin(?) Question

[aldente]

In this example I "reprogrammed" the "C"-Button of Microsofts Calculator:

http://home.scarlet.be/~il095280/hijacking_ms-calc.zip

(Should start in scientific mode, otherwise it will not work, has to be improved)


This works completely without hooks (as hooks are quite ugly) and WITHOUT touching the orignal app, so you are even legally allowed to "extend" other apps like this. It just creates a form, sets the other app (calc.exe) as the parent, and draws its button over the original one.

You can even automatically get its position, window-style, caption, etc, anyway, in this example i did it manually.

[Nacho_dj]

Hello:

Interesting this Thread. It is just the one I was needing.

I am trying to execute some code that it is in a process loaded in memory, from an application that loads that process.

Big or what: Is it possible to get a tutorial of the way you have developped your calculator patch?
As it is made without hooks it shows an alternative point of view of the scenary.

gabri3l: Your explanation is brilliant! Many thanks for the info.


Cheers

Nacho_dj