Cheat Engine

[LongBeardedLion]

Im practicing with Medieval Total War 2.
I reversed quite a lot already.
And was able to call many functions and find many useful pointers.

But im stuck trying to find functions that trigger buttons.
I searched for the typical boolean that is true when a button is clicked.
And found it.
But then i cannot find a proper function that triggers the button.

Is it possible that this function is not reachable or impossible to find?
Or is it lost somewhere in the soup of functions.

Pls any tips on how can i find this function and trigger the buttons to work?
Because for now im using a PostMessage to click on menus, and that is unreliable.

[++METHOS]

Finding the function is likely not the problem, since you can do that by simply right-clicking on the value to see what reads/writes to it, as you probably know already.

Depending on the target, there may be many values/addresses that pertain to button presses, but only a few (or one) of them will actually work to send a particular button press. You will need to find the right one(s).

One thing to keep in mind is that the value may not always work as a simple 1/0 bool, so you will want to search for changed/unchanged for best results. Another thing to keep in mind is that trigger-type buttons may be in float, with values that fluctuate in a range. And lastly, some targets may handle button presses individually, while some may handle them collectively.

Once you have a group of promising results, add them to your cheat table and manually change the values to a pressed state, and see if the input is sent to the target.

There are also other ways to send inputs, but this response is assuming that you are wanting to use the game's code for it.

[LongBeardedLion]

Thank you. But i tried that already.
That doesnt work. Changing the bool itself doesnt do anything.

What i did was finding what writes to the address. And got all the functions in the stack call.

And tried them all using breakpoints. And studying them.

It doesnt work. But this worked before in other games.

Changing a value alone doesnt do anything most of the time.

Because the function is called and it overwrites your value. So unless you call the function or make a detour it wont work.

The issue is really finding the function that does this, is like trying to find a needle in a haystack. And apparently you can even leave with no results.

[danrevella]

Please give a try to this:
https://x64dbg.com/blog/2017/07/07/messages-breakpoints-in-x64dbg.html
I have ask in the past if is it possible implement something like this in cheat engine, but..... no answer.
Usually I use x64dbg to locate the routine, then come back to CE to prosegue my job...

[++METHOS]

[LongBeardedLion]

[danrevella]

uhm....
Is this a freeware game?
I may not promise, but if you wanna give me "the exactelly version " you utilize, and what is the button you wanna intercept, I'll give it an eye...

[LongBeardedLion]

I succeeded in making the message breakpoint. But in the website you have shown it is hard to understand the next steps.

So im stuck there.

I found the 0x202, that is the left button in the stack.
But after that, i cant seem to find anything useful, even though i check and tried all the functions that appear after.

I press ctrl+f9, that is to run until return. And like 4 functions down the line the program simply resumes.

[TsTg]

while digging through the window message proc routine is a good start, it might be a tedious process to do, depending on how the game is designed to handle input.

also, the mouse WM_LBUTTONUP and other similar ones, give the co-ordinates of the mouse cursor when it was clicked

anyways, you need to look into the window proc and see what happens when the code jumps at medival2.F0CFA2 (where ECX = 0x202)

also can you write the messages you are currently using via PostMessage ?