The Gamehacking Foundation Classes [GHF]

Quote:

Originally Posted by high9 Make sure that you can unhook without deleting the detours instructions. It annoys me that with ms detours you cannot remove a detour inside the detour because it removes the instructions.

huh? what do you mean by this? unhooking without deleting the instructions? o.O
the E9 instruction? what should I do with them instead of replacing them by the original ones? o.ô

I mean, when you detour you generally copy the instructions (trampoline) you are overwriting with the jump. Don't delete the copied instructions. That way when you unhook it can still execute the copied instructions and get back.

Quote:

Originally Posted by high9 I mean, when you detour you generally copy the instructions (trampoline) you are overwriting with the jump. Don't delete the copied instructions. That way when you unhook it can still execute the copied instructions and get back.

ah, so you mean, the trampoline should not be deleted?
ok, this idea is new for me :D Could you give me an example? In which real world situation you could need this? If you can, I will add a flag for keeping the trampoline.

edit:

Ok, tomorrow I will finish the getOpLen method and I will be able to post the full detours class


edit2:

ah, now I remember!

to the include guards again:

Everything works fine, if the header is only included in one .cpp.
But if I include it in a second file I get an "already defined"-error.
The include guards are only to avoid double defining in one .cpp file and pragma once works global!

Quote:

Originally Posted by MrSm!th ah, so you mean, the trampoline should not be deleted? ok, this idea is new for me :D Could you give me an example? In which real world situation you could need this? If you can, I will add a flag for keeping the trampoline. edit: Ok, tomorrow I will finish the getOpLen method and I will be able to post the full detours class edit2: ah, now I remember! to the include guards again: Everything works fine, if the header is only included in one .cpp. But if I include it in a second file I get an "already defined"-error. The include guards are only to avoid double defining in one .cpp file and pragma once works global!

If you delete the trampoline when the hooked function is executing it has no way of returning.

Errm, the tramoline is only deleted, when the function is unhooked, so this is no problem ;)


edit:

Ok, I just added the source.

I hope you will download it and give feedback ;)

hey man i wana join.i no c# and learnt the basics of c++ in a week so was born to code. but i prefer c# so i would like to join. i can already find pointers,detect wherther a program is running etc

ohhh sorry! i found some critical logical mistakes in the code.

now the GHF::Detours class is without any bug (at least i hope so)

Quote:

hey man i wana join.i no c# and learnt the basics of c++ in a week so was born to code. but i prefer c# so i would like to join. i can already find pointers,detect wherther a program is running etc

sorry, but like i said, it is written in c++.
if you have a good knowledge in object oriented techniques, you can help me with design decisions anyway ;)

(we dont need any pointer scanning or something like this)