Old Garry's Mod allowcslua detour/bypass

typedef IGModDataPack* ( __cdecl* GetDataPackPointer_t )( void );

IGModDataPack*  ptr_DataPack    = NULL;
CVMTManager*    g_DataPackHook  = NULL;

bool __cdecl new_BlockCSLua( void )
{
    return false;
}

bool GetDataPackPtr( void )
{
    DWORD dwDataPackCall = FindPattern( ( DWORD )GetModuleHandleA( "doit" ), "\yourself", "???loser??" );

    if( dwDataPackCall == NULL )
        return false;

    GetDataPackPointer_t GetDataPackPointer = GetCallAddress< GetDataPackPointer_t >( dwDataPackCall );

    ptr_DataPack = GetDataPackPointer();

    if( ptr_DataPack != NULL )
        return true;

    return false;
}

DWORD WINAPI MainThread( LPVOID lpArguments )
{
    while( GetModuleHandleA( "client.dll" ) == NULL )
        Sleep( 100 );

    if( GetDataPackPtr() )
    {
        static CVMTManager DataPackHook( ptr_DataPack, true );
        g_DataPackHook = &DataPackHook;

        DataPackHook.HookMethod( &new_BlockCSLua, 4 );
    }

    return NULL;
}