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blackmorpheus
Expert Cheater
![]() Reputation: 0
Joined: 05 Apr 2008
Posts: 159
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 Posted: Tue Mar 17, 2009 3:44 am Post subject: PostMessage help |
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Hey,
Im trying to make a bot for a game. I got a hooked myPostMessage from somewhere, but i can't seem to send messages to a game...
I tried it with Notepad but it just didnt work. Help me out please 
| Code: | #include <windows.h>
#include "main.h"
HINSTANCE hInst;
DWORD DLLFunc;
HWND hFlyff;
HWND hWnd;
bool bBotting = false;
__declspec(naked) BOOL WINAPI __stdcall myPostMessageA(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{
__asm
{
mov edi, edi
push ebp
mov ebp, esp
jmp [DLLFunc]
}
}
BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /*lpvReason*/)
{
switch (dwReason)
{
case DLL_PROCESS_ATTACH:
{
if (DLLFunc == NULL)
{
hInst = LoadLibrary("user32.dll");
DLLFunc = (DWORD)GetProcAddress(hInst, "PostMessageA") + 5;
}
if (hWnd == NULL)
{
hWnd = FindWindow(NULL, "Untitled - Notepad");
}
CreateThread( NULL, 0, (LPTHREAD_START_ROUTINE)listenHotkeys, NULL, 0, NULL );
}
break;
case DLL_THREAD_ATTACH:
{
if (DLLFunc == NULL) {
hInst = LoadLibrary("user32.dll");
DLLFunc = (DWORD)GetProcAddress(hInst, "PostMessageA") + 5;
}
if (hWnd == NULL) {
hWnd = FindWindow(NULL, "Untitled - Notepad");
}
}
break;
case DLL_THREAD_DETACH:
{
if (hInst != NULL) {
// Un-Load DLL
FreeLibrary(hInst);
hInst = NULL;
}
}
break;
case DLL_PROCESS_DETACH:
{
if (hInst != NULL) {
// Un-Load DLL
FreeLibrary(hInst);
hInst = NULL;
}
}
break;
}
return TRUE;
}
void listenHotkeys()
{
while(1)
{
if(GetAsyncKeyState(VK_F9)&1)
{
bBotting = !bBotting;
}
if(bBotting)
{
hWnd = FindWindow(NULL, "Untitled - Notepad"); //Test WIndow
Sleep(4000);
MessageBox(hWnd, "lulz!", "lulz!" , MB_OK);
myPostMessageA(hWnd, WM_KEYDOWN,0x46, 0);
PostMessageA(hWnd, WM_KEYDOWN, 0x47,0);
}
}
} |
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sloppy
Expert Cheater
![]() Reputation: 0
Joined: 17 Aug 2008
Posts: 123
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| Posted: Tue Mar 17, 2009 5:07 am Post subject: |
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You need a handle to the edit box in notepad,
| Code: | HWND hWnd = FindWindowEx(FindWindow("Notepad", 0), 0, "Edit", 0);
PostMessage(hWnd, WM_KEYDOWN, 'F', 0); |
Use Spy++ or something similar to monitor window messages, try replicate them as best you can.
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Zerith
Master Cheater
 Reputation: 1
Joined: 07 Oct 2007
Posts: 468
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| Posted: Tue Mar 17, 2009 6:47 am Post subject: |
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I suggest you learn before copy-pasting code.
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mStorm
Expert Cheater
![]() Reputation: 0
Joined: 21 Feb 2009
Posts: 107
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| Posted: Tue Mar 17, 2009 9:09 am Post subject: |
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If the game uses DirectInput (DirectX), then you are out of luck. You will need to either use SendInput using DIK_ constants (like sendkeys, just at a lower level), or hook the directx dll and inject keys into the game that way.
if it doesn't use DirectX, and PostMessage works... you will need to use APISpy to find the correct window to post the message to. It's not always the one you'd expect.
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Bizarro
I post too much
 Reputation: 0
Joined: 01 May 2007
Posts: 2648
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| Posted: Tue Mar 17, 2009 9:29 am Post subject: |
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i heard in the latest gg, postmessage is hooked on the ring0 as well.
i don't think a simple trampoline would work on that anymore. assuming u are working on a gg protected game
otherwise, fix ur code. i do see a lot of errors.
_________________
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lurc
Grandmaster Cheater Supreme
 Reputation: 2
Joined: 13 Nov 2006
Posts: 1900
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| Posted: Tue Mar 17, 2009 10:37 am Post subject: |
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| Bizarro wrote: | i heard in the latest gg, postmessage is hooked on the ring0 as well.
i don't think a simple trampoline would work on that anymore. assuming u are working on a gg protected game
otherwise, fix ur code. i do see a lot of errors. |
GameGuard has been hooking NtUserPostMessage for quite some time, but it hasn't stopped the simple trampoline from working, so I don't know what the hell GameGuard is doing there...
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hcavolsdsadgadsg
I'm a spammer
![]() Reputation: 26
Joined: 11 Jun 2007
Posts: 5801
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| Posted: Tue Mar 17, 2009 3:33 pm Post subject: |
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| mStorm wrote: | If the game uses DirectInput (DirectX), then you are out of luck. You will need to either use SendInput using DIK_ constants (like sendkeys, just at a lower level), or hook the directx dll and inject keys into the game that way.
if it doesn't use DirectX, and PostMessage works... you will need to use APISpy to find the correct window to post the message to. It's not always the one you'd expect. |
DirectX is not DirectInput
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manc
Grandmaster Cheater
 Reputation: 1
Joined: 16 Jun 2006
Posts: 551
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| Posted: Tue Mar 17, 2009 7:30 pm Post subject: |
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| slovach wrote: | | mStorm wrote: | | If the game uses DirectInput (DirectX), then you are out of luck. |
DirectX is not DirectInput |
He's just saying that its a subset of DirectX, not literally the same thing.
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blackmorpheus
Expert Cheater
![]() Reputation: 0
Joined: 05 Apr 2008
Posts: 159
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| Posted: Fri Mar 20, 2009 12:12 pm Post subject: |
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Hey Guys, thanks all!
I've got it working now. I used a very nice loader from someone who injected the dll else as soon as the process was found. (anyone has an opensource link to a VB one?)
But now i have another problem. I want to read the address of the HP, and press some key, but i don't know the pointer. I dont have any memory finding tools. They are all detected.
Anyone has some undetected cheat engine or another tool with which i can look for the values?
A better solution would be to totally disable GG ofcourse, but that's kinda hard.
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