NomadMemory returns a negative value @ uint64?

Overon · February 26, 2009

Hi,

I try to read the Unique ID of an Item under my Cursor in World of Warcraft. All works fine, but i wonder that the funktion return a negative value on NPC's when i use uint64.

My Windows is a x64 XP. I testet this on my x32 Machine but it's the same.

_MemoryRead ( 0x010A68E0 ,$m_hProcess, 'uint64')

-> Mouse Cursor over the Postbox at the bank in Ironforge returns: -1076357430310335906

The NomadMemory.au3:

#include-once
#region _Memory
;==================================================================================
; AutoIt Version:   3.1.127 (beta)
; Language:         English
; Platform:         All Windows
; Author:           Nomad
; Requirements:     These functions will only work with beta.
;==================================================================================
; Credits:  wOuter - These functions are based on his original _Mem() functions.
;           But they are easier to comprehend and more reliable.  These
;           functions are in no way a direct copy of his functions.  His
;           functions only provided a foundation from which these evolved.
;==================================================================================
;
; Functions:
;
;==================================================================================
; Function:         _MemoryOpen($iv_Pid[, $iv_DesiredAccess[, $iv_InheritHandle]])
; Description:      Opens a process and enables all possible access rights to the
;                   process.  The Process ID of the process is used to specify which
;                   process to open.  You must call this function before calling
;                   _MemoryClose(), _MemoryRead(), or _MemoryWrite().
; Parameter(s):     $iv_Pid - The Process ID of the program you want to open.
;                   $iv_DesiredAccess - (optional) Set to 0x1F0FFF by default, which
;                                       enables all possible access rights to the
;                                       process specified by the Process ID.
;                   $iv_InheritHandle - (optional) If this value is TRUE, all processes
;                                       created by this process will inherit the access
;                                       handle.  Set to 1 (TRUE) by default.  Set to 0
;                                       if you want it FALSE.
; Requirement(s):   None.
; Return Value(s):  On Success - Returns an array containing the Dll handle and an
;                                open handle to the specified process.
;                   On Failure - Returns 0
;                   @Error - 0 = No error.
;                            1 = Invalid $iv_Pid.
;                            2 = Failed to open Kernel32.dll.
;                            3 = Failed to open the specified process.
; Author(s):        Nomad
; Note(s):
;==================================================================================
Func _MemoryOpen($iv_Pid, $iv_DesiredAccess = 0x1F0FFF, $iv_InheritHandle = 1)
    
    If Not ProcessExists($iv_Pid) Then
        SetError(1)
        Return 0
    EndIf
    
    Local $ah_Handle[2] = [DllOpen('kernel32.dll')]
    
    If @Error Then
        SetError(2)
        Return 0
    EndIf
    
    Local $av_OpenProcess = DllCall($ah_Handle[0], 'int', 'OpenProcess', 'int', $iv_DesiredAccess, 'int', $iv_InheritHandle, 'int', $iv_Pid)
    
    If @Error Then
        DllClose($ah_Handle[0])
        SetError(3)
        Return 0
    EndIf
    
    $ah_Handle[1] = $av_OpenProcess[0]
    
    Return $ah_Handle
    
EndFunc

;==================================================================================
; Function:         _MemoryRead($iv_Address, $ah_Handle[, $sv_Type])
; Description:      Reads the value located in the memory address specified.
; Parameter(s):     $iv_Address - The memory address you want to read from. It must
;                                 be in hex format (0x00000000).
;                   $ah_Handle - An array containing the Dll handle and the handle
;                                of the open process as returned by _MemoryOpen().
;                   $sv_Type - (optional) The "Type" of value you intend to read.
;                               This is set to 'dword'(32bit(4byte) signed integer)
;                               by default.  See the help file for DllStructCreate
;                               for all types.  An example: If you want to read a
;                               word that is 15 characters in length, you would use
;                               'char[16]' since a 'char' is 8 bits (1 byte) in size.
; Return Value(s):  On Success - Returns the value located at the specified address.
;                   On Failure - Returns 0
;                   @Error - 0 = No error.
;                            1 = Invalid $ah_Handle.
;                            2 = $sv_Type was not a string.
;                            3 = $sv_Type is an unknown data type.
;                            4 = Failed to allocate the memory needed for the DllStructure.
;                            5 = Error allocating memory for $sv_Type.
;                            6 = Failed to read from the specified process.
; Author(s):        Nomad
; Note(s):          Values returned are in Decimal format, unless specified as a
;                   'char' type, then they are returned in ASCII format.  Also note
;                   that size ('char[size]') for all 'char' types should be 1
;                   greater than the actual size.
;==================================================================================
Func _MemoryRead($iv_Address, $ah_Handle, $sv_Type = 'dword')
    
    If Not IsArray($ah_Handle) Then
        SetError(1)
        Return 0
    EndIf
    
    Local $v_Buffer = DllStructCreate($sv_Type)
    
    If @Error Then
        SetError(@Error + 1)
        Return 0
    EndIf
    
    DllCall($ah_Handle[0], 'int', 'ReadProcessMemory', 'int', $ah_Handle[1], 'int', $iv_Address, 'ptr', DllStructGetPtr($v_Buffer), 'int', DllStructGetSize($v_Buffer), 'int', '')
    
    If Not @Error Then
        Local $v_Value = DllStructGetData($v_Buffer, 1)
        Return $v_Value
    Else
        SetError(6)
        Return 0
    EndIf
    
EndFunc

;==================================================================================
; Function:         _MemoryWrite($iv_Address, $ah_Handle, $v_Data[, $sv_Type])
; Description:      Writes data to the specified memory address.
; Parameter(s):     $iv_Address - The memory address which you want to write to.
;                                 It must be in hex format (0x00000000).
;                   $ah_Handle - An array containing the Dll handle and the handle
;                                of the open process as returned by _MemoryOpen().
;                   $v_Data - The data to be written.
;                   $sv_Type - (optional) The "Type" of value you intend to write.
;                               This is set to 'dword'(32bit(4byte) signed integer)
;                               by default.  See the help file for DllStructCreate
;                               for all types.  An example: If you want to write a
;                               word that is 15 characters in length, you would use
;                               'char[16]' since a 'char' is 8 bits (1 byte) in size.
; Return Value(s):  On Success - Returns 1
;                   On Failure - Returns 0
;                   @Error - 0 = No error.
;                            1 = Invalid $ah_Handle.
;                            2 = $sv_Type was not a string.
;                            3 = $sv_Type is an unknown data type.
;                            4 = Failed to allocate the memory needed for the DllStructure.
;                            5 = Error allocating memory for $sv_Type.
;                            6 = $v_Data is not in the proper format to be used with the
;                                "Type" selected for $sv_Type, or it is out of range.
;                            7 = Failed to write to the specified process.
; Author(s):        Nomad
; Note(s):          Values sent must be in Decimal format, unless specified as a
;                   'char' type, then they must be in ASCII format.  Also note
;                   that size ('char[size]') for all 'char' types should be 1
;                   greater than the actual size.
;==================================================================================
Func _MemoryWrite($iv_Address, $ah_Handle, $v_Data, $sv_Type = 'dword')
    
    If Not IsArray($ah_Handle) Then
        SetError(1)
        Return 0
    EndIf
    
    Local $v_Buffer = DllStructCreate($sv_Type)
    
    If @Error Then
        SetError(@Error + 1)
        Return 0
    Else
        DllStructSetData($v_Buffer, 1, $v_Data)
        If @Error Then
            SetError(6)
            Return 0
        EndIf
    EndIf
    
    DllCall($ah_Handle[0], 'int', 'WriteProcessMemory', 'int', $ah_Handle[1], 'int', $iv_Address, 'ptr', DllStructGetPtr($v_Buffer), 'int', DllStructGetSize($v_Buffer), 'int', '')
    
    If Not @Error Then
        Return 1
    Else
        SetError(7)
        Return 0
    EndIf
    
EndFunc

;==================================================================================
; Function:         _MemoryClose($ah_Handle)
; Description:      Closes the process handle opened by using _MemoryOpen().
; Parameter(s):     $ah_Handle - An array containing the Dll handle and the handle
;                                of the open process as returned by _MemoryOpen().
; Return Value(s):  On Success - Returns 1
;                   On Failure - Returns 0
;                   @Error - 0 = No error.
;                            1 = Invalid $ah_Handle.
;                            2 = Unable to close the process handle.
; Author(s):        Nomad
; Note(s):
;==================================================================================
Func _MemoryClose($ah_Handle)
    
    If Not IsArray($ah_Handle) Then
        SetError(1)
        Return 0
    EndIf
    
    DllCall($ah_Handle[0], 'int', 'CloseHandle', 'int', $ah_Handle[1])
    If Not @Error Then
        DllClose($ah_Handle[0])
        Return 1
    Else
        DllClose($ah_Handle[0])
        SetError(2)
        Return 0
    EndIf
    
EndFunc

;==================================================================================
; Function:         SetPrivilege( $privilege, $bEnable )
; Description:      Enables (or disables) the $privilege on the current process
;                  (Probably) requires administrator privileges to run
;
; Author(s):        Larry (from autoitscript.com's Forum)
; Notes(s):
; http://www.autoitscript.com/forum/index.php?s=&showtopic=31248&view=findpost&p=223999
;==================================================================================

Func SetPrivilege( $privilege, $bEnable )
    Const $MY_TOKEN_ADJUST_PRIVILEGES = 0x0020
    Const $MY_TOKEN_QUERY = 0x0008
    Const $MY_SE_PRIVILEGE_ENABLED = 0x0002
    Local $hToken, $SP_auxret, $SP_ret, $hCurrProcess, $nTokens, $nTokenIndex, $priv
    $nTokens = 1
    $LUID = DLLStructCreate("dword;int")
    If IsArray($privilege) Then $nTokens = UBound($privilege)
    $TOKEN_PRIVILEGES = DLLStructCreate("dword;dword[" & (3 * $nTokens) & "]")
    $NEWTOKEN_PRIVILEGES = DLLStructCreate("dword;dword[" & (3 * $nTokens) & "]")
    $hCurrProcess = DLLCall("kernel32.dll","hwnd","GetCurrentProcess")
    $SP_auxret = DLLCall("advapi32.dll","int","OpenProcessToken","hwnd",$hCurrProcess[0],   _
            "int",BitOR($MY_TOKEN_ADJUST_PRIVILEGES,$MY_TOKEN_QUERY),"int*",0)
    If $SP_auxret[0] Then
        $hToken = $SP_auxret[3]
        DLLStructSetData($TOKEN_PRIVILEGES,1,1)
        $nTokenIndex = 1
        While $nTokenIndex <= $nTokens
            If IsArray($privilege) Then
                $priv = $privilege[$nTokenIndex-1]
            Else
                $priv = $privilege
            EndIf
            $ret = DLLCall("advapi32.dll","int","LookupPrivilegeValue","str","","str",$priv,   _
                    "ptr",DLLStructGetPtr($LUID))
            If $ret[0] Then
                If $bEnable Then
                    DLLStructSetData($TOKEN_PRIVILEGES,2,$MY_SE_PRIVILEGE_ENABLED,(3 * $nTokenIndex))
                Else
                    DLLStructSetData($TOKEN_PRIVILEGES,2,0,(3 * $nTokenIndex))
                EndIf
                DLLStructSetData($TOKEN_PRIVILEGES,2,DllStructGetData($LUID,1),(3 * ($nTokenIndex-1)) + 1)
                DLLStructSetData($TOKEN_PRIVILEGES,2,DllStructGetData($LUID,2),(3 * ($nTokenIndex-1)) + 2)
                DLLStructSetData($LUID,1,0)
                DLLStructSetData($LUID,2,0)
            EndIf
            $nTokenIndex += 1
        WEnd
        $ret = DLLCall("advapi32.dll","int","AdjustTokenPrivileges","hwnd",$hToken,"int",0,   _
                "ptr",DllStructGetPtr($TOKEN_PRIVILEGES),"int",DllStructGetSize($NEWTOKEN_PRIVILEGES),   _
                "ptr",DllStructGetPtr($NEWTOKEN_PRIVILEGES),"int*",0)
        $f = DLLCall("kernel32.dll","int","GetLastError")
    EndIf
    $NEWTOKEN_PRIVILEGES=0
    $TOKEN_PRIVILEGES=0
    $LUID=0
    If $SP_auxret[0] = 0 Then Return 0
    $SP_auxret = DLLCall("kernel32.dll","int","CloseHandle","hwnd",$hToken)
    If Not $ret[0] And Not $SP_auxret[0] Then Return 0
    return $ret[0]
EndFunc  ;==>SetPrivilege

#endregion

I hope someone has an idea.

Many Thanks

Marlo · February 26, 2009

Just leave the datatype as default? (dword)

_MemoryRead ( 0x010A68E0 ,$m_hProcess) ;Will default to dword

Overon · February 26, 2009

As i know is the ID or called "GUID" 8 bytes long. And dword only returns 4 byte.

Edited February 26, 2009 by Overon

Inverted · February 26, 2009

Are you sure the game uses uint64 ? And are you sure about the memory ?

GUIDs are 128 bits.

Edited February 26, 2009 by Inverted

Overon · February 26, 2009

Are you sure the game uses uint64 ? And are you sure about the memory ?
GUIDs are 128 bits.

no, not really. But the GUID from WoW ist not the offiziel 128bit. Blizzard call it GUID but it is more a simply ID 64bit long.

In other C++ Forums they use 'longlong' and I read that Uint64 is the same in AutoIT.

I wonder why Uint64 return a negative Value...

Authenticity · February 26, 2009

It shouldn't really matter that much for you how the integer interpreter displays this numbers. You can consider it the same as it's appear to be in the original address.

Consider this for example:

MsgBox(0x40, 'Title', Int(2^63) & @LF)

It's actually 0x8000000000000000 but that is a large number for the interpreter to display so the value get rolled over and over.

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NomadMemory returns a negative value @ uint64?

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