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;===================================================================================================

; Function........:  _MemoryGetBaseAddress($ah_Handle, $iHD)
;
; Description.....:  Reads the 'Allocation Base' from the open process.
;
; Parameter(s)....:  $ah_Handle - An array containing the Dll handle and the handle of the open
;                               process as returned by _MemoryOpen().
;                    $iHD - Return type:
;                       |0 = Hex (Default)
;                       |1 = Dec
;
; Requirement(s)..:  A valid process ID.
;
; Return Value(s).:  On Success - Returns the 'allocation Base' address and sets @Error to 0.
;                    On Failure - Returns 0 and sets @Error to:
;                  |1 = Invalid $ah_Handle.
;                  |2 = Failed to find correct allocation address.
;                  |3 = Failed to read from the specified process.
;
; Author(s).......:  Nomad. Szhlopp.
; URL.............:  http://www.autoitscript.com/forum/index.php?showtopic=78834
; Note(s).........:  Go to Www.CheatEngine.org for the latest version of CheatEngine.
;===================================================================================================

Func _MemoryGetBaseAddress($ah_Handle, $iHexDec = 0)

    Local $iv_Address = 0x00100000
    Local $v_Buffer = DllStructCreate('dword;dword;dword;dword;dword;dword;dword')
    Local $vData
    Local $vType

    If Not IsArray($ah_Handle) Then
        SetError(1)
        Return 0
    EndIf


    DllCall($ah_Handle[0], 'int', 'VirtualQueryEx', 'int', $ah_Handle[1], 'int', $iv_Address, 'ptr', DllStructGetPtr($v_Buffer), 'int', DllStructGetSize($v_Buffer))

    If Not @Error Then

        $vData = Hex(DllStructGetData($v_Buffer, 2))
        $vType = Hex(DllStructGetData($v_Buffer, 3))

        While $vType <> "00000080"
            DllCall($ah_Handle[0], 'int', 'VirtualQueryEx', 'int', $ah_Handle[1], 'int', $iv_Address, 'ptr', DllStructGetPtr($v_Buffer), 'int', DllStructGetSize($v_Buffer))
            $vData = Hex(DllStructGetData($v_Buffer, 2))
            $vType = Hex(DllStructGetData($v_Buffer, 3))
            If Hex($iv_Address) = "01000000" Then ExitLoop
            $iv_Address += 65536

        WEnd

        If $vType = "00000080" Then
            SetError(0)
            If $iHexDec = 1 Then
                Return Dec($vData)
            Else
                Return $vData
            EndIf

        Else
            SetError(2)
            Return 0
        EndIf

    Else
        SetError(3)
        Return 0
    EndIf

EndFunc   ;==>_MemoryGetBaseAddress

;=================================================================================================
; 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.
;					$if_InheritHandle - (optional) If this value is TRUE, all processes created by
;										this process will inherit the access handle.  Set to TRUE
;										(1) by default.  Set to 0 if you want it to be FALSE.
; Requirement(s):	A valid process ID.
; 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, $if_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', $if_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