Calling internal tibia function with parameter

[rewisal]

Im trying to call tibia attack function by injecting dll, the problem is that the parameter (creature id) is not passed properly and i dont know why. Here is my code:

#include <windows.h>

DWORD WINAPI MyThread(LPVOID);
DWORD g_threadID;
HMODULE g_hModule;
void __cdecl CallFunction(int);

INT APIENTRY DllMain(HMODULE hDLL, DWORD Reason, LPVOID Reserved)
{
	switch(Reason)
	{
	case DLL_PROCESS_ATTACH:
		g_hModule = hDLL;
		DisableThreadLibraryCalls(hDLL);
		CreateThread(NULL, NULL, &MyThread, NULL, NULL, &g_threadID);
	break;
	case DLL_THREAD_ATTACH:
	case DLL_PROCESS_DETACH:
	case DLL_THREAD_DETACH:
		break;
	}
	return TRUE;
}

DWORD WINAPI MyThread(LPVOID)
{
	int creatureID = 0x40030E6B;
	CallFunction(creatureID);
	FreeLibraryAndExitThread(g_hModule, 0);
	return 0;
}

void __cdecl CallFunction(int param1)
{
	typedef void(__cdecl *pFunctionAddress)(int);
	pFunctionAddress pMySecretFunction = (pFunctionAddress)(0x01310EC0); 
	pMySecretFunction(param1);
}

[ottizy]

Use __fastcall instead of __cdecl

[rewisal]

Use __fastcall instead of __cdecl

I tried to change it to fastcall but it didnt help. Function seems to be called properly because when i attack monster and then inject this dll, my character stops attacking but when i inject it when character isn't attacking anything then nothing happens. That's why i think that creatureID isnt passed properly.

[rewisal]

Actually u were right, I injected dll to the wrong client . Thank you very much!

Btw do all tibia functions have to be called with fastcall?

[ottizy]

I think so. Not 100% sure however.