#include <Windows.h>
#include "Detours.h"

#define CHAT_MSG_ADDR (BYTE*)0x007BC910

typedef void(__fastcall *P0081_t)(DWORD* hstr);
P0081_t tramp;

void __fastcall det_P0081(DWORD* hstr){
  if(*hstr == 0x641F8101)
      hstr[3] = 0x00000100;
  tramp(hstr);
}

BOOL WINAPI DllMain(HMODULE hMod,DWORD dwReason,LPVOID)
{
  if(dwReason == DLL_PROCESS_ATTACH)
    tramp = (P0081_t)DetourFunc(CHAT_MSG_ADDR,(BYTE*)det_P0081,6);
  return TRUE;
}