Cheat Engine

[madeinqc]

I'm trying to send keys to D3D Window to make a bot using PostMessage

for now I have:

push 1
push 00000057 //'W' key
push 00000100 //keydown
push hWnd
call PostMessageA

And

push C0110001
push 00000057 //'W' key
push 00000101 //KeyUp
push hWnd
call PostMessageA


In fact, the key work in the 2d part of the screen (such as chat window) but dont work in 3d part of the game (such as character control key... like the looting key)

anyone here know why? is it the game that protect himself from false keystroke? I've checked API and none are hooked so is there an other way it can protect? is there something special for keys send to a d3d window that I should know?

thx for answering ^^ hoping I can solve my problem

[tombana]

If the game uses gameguard, then PostMessage is hooked, but that's probably not the case because you're able to send keys to the chat window.
A possibility would be that the game uses DirectInput. This is for example the case with Maplestory's directional keys. I'm not sure how to send keys to directinput. Have you tried SendInput?

[&Vage]

Well it would be easier if you told us what compiler you were using and your IDE.

[GMZorita]

[sponge]

[GMZorita]

[smartz993]

[madeinqc]

I'm programing in ASM with auto assembly for now... it's for windslayer and it use HackShield...that you can bypass by deleting it... so it's not a hacking protection...

I use post message to make it minimized... so I didn't tried the others

push 00000057 mean what it mean in asm... no need to put aob I think :p

and that's it for now, I'll search more on DirectInput tomorow

thx for answer and idea

PS: I use olly and cheatengine to hack it...

[dnsi0]

oh if ur using ce then it is in hex.

[madeinqc]

ok, for now I see 2 choices...

1-emulate a keyboard completely (can't do it loll too much job and I dont have the knowledge for)

2- find and hook the game's directinput (still dont have enough knowledge for that...)

any others way?? if not, I'll try to find more about DI and see what I can do about number 2

thx for help

[Zand]

Use the KBC; this is R0 though.

[tombana]

Did you already try SendInput?
If you can bypass Hackshield then it shouldn't be a problem.

[madeinqc]

sendinput and keybd_event work but I would like to have it minimized... that's why

and thx Zand, I'll check for KBC

[tombana]

I had a look at msdn's information on DirectInput
http://msdn.microsoft.com/en-us/library/bb206171.aspx

The page at this link is a part of a tutorial on getting keyboard input. As you can see in the code on that page, the application/game can use this to check for keys that are pressed:
g_lpDIDevice->GetDeviceState(sizeof(buffer),(LPVOID)&buffer);
So if you hook that function, you can modify the buffer:
For example: everytime when the function is called, you check if your bot should be pressing the up key. If so, you could change the part of the buffer containing the up-key information so the game thinks the up-key is pressed.

However, msdn also says that there are multiple ways to receive input from DirectInput. It can also be done in a way where DirectInput calls functions of the application when a key is pressed. So I think the way to 'bypass' this all, depends on the way your game uses DirectInput.

[madeinqc]

thx a lot to all, I'll try to find how it use DirectInput, I may have an idea, I'll need to check... there's a part of code in the game that I found that have the key value pushed so maybe it's with that function that the game know it, I'll check how it react to different API (like if I use Post message, is the good key used trought this code, etc) and I'll give news

thx a lot again ^^