Cheat Engine

[hydris]

Stealth update for an old, old topic:
Something did come from this, though only partially of what I hoped for
YouTube: watch?v=spzFz5zKP70
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Hey,

I'm trying to make a in-menu only action, do-able without the menu on a keypress.

What normally happens in-game/in-menu is that:
-It writes an integer (0 - 5), when a selection is made within the menu.
-Once the menu is exited, somethings appear to access the value stored at the address, then the change actually takes place.
The end result is that a specific button/key will perform different action(s).

(The game's Devil May Cry 3, if you're familiar, I'm talking about changing the active style)

What I've tried is just changing the value at the address outside of the menu, but I need to exit the menu in order for the changes to take place. (Entering the menu does change the value back to what it was before).

Currently I'm trying to just change the value at the address, then calling two of the routines that access the address on exit, but I don't have much of an idea on what to do, and the autoAssemble function has been returning false with past attempts.
I currently have:

[Gniarf]

1-You only need the "[enable]" keyword and the "[disable]" section when for AA scripts that are directly in you cheat table.
When using the lua autoAssemble function, just put the content of the enable section in switchit.

2-Are you sure that the function at dmc3se.exe+44235 takes 0 parameters?
How to know the number of parameters for a function:
2.1-for cdecl functions, find:
__call dmc3se.exe+44235
__add esp, 0C
2.2-for stdcall functions, they end with ret 0C
number of parameters = blue number/4. If your function ends with retn and there is no add esp,XXX after the call to you function, then it takes 0 parameters.
If your function needs parameters, you'll need to find a way to capture/log them, and then you will have to push (see below) them before calling your function.

3-Your code is going to loop-call dmc3se.exe+44235 as fast as possible until you set stop to 0, and you're going to see one of your cpu cores at max utilization in the task manager with a code like that. Instead I'd recommend creating a thread each time you switch styles, and letting those die as soon as they are done setting styles. Your asm code would become something like that:

[hydris]

Thanks for the response,

[Correct me if wrong, the way I'm determining that these are functions is seeing what gets highlighted when I click 'Select current function'.]

3- The example code you posted, I gave it a try to see if autoAssemble() would return true, but it's returning false.
If it's any indicator I also tried print(switchit) and saw the output didn't have spaces or line breaks.

2- I notice that the function at dmc3se.exe+44235 doesn't have any of that, and the way the game handles it is by jumping to it.

The other code that accesses the address (dmc3se.exe+45C5C) is also in the middle of a function(?). I'm not sure if it should be handled differently than whats at dmc3se.exe+44235.

[Gniarf]

[hydris]

I'm taking a look in the Memory Viewer again, since I agree with your gut feeling.

What I do notice after clicking 'Dissect Code' I see '(some address) [Con, Call, Un]', the address leading to where the jump or call comes from. (Though I don't know what "Un" and "Con" are)
And I get lead to something that fits what you've listed ('nop's before and after, pushes, jumps) closely; except the indicators for parameters you've listed.

So Memory Viewer kind of looks like (looking around from dmc3se.exe+44235)
(Before call)

[Gniarf]